Patent Application
20120326966
Computer vision allows a device to perceive the environment in the device's vicinity. Computer vision enables applications in augmented reality by allowing the display device augment the reality of a user's surroundings. Modern day hand-held devices like tablets, smart phones, video game consoles, personal digital assistants, point-and-shoot camera and mobile devices may enable a few forms of computer vision by having a camera capture the sensory input. In these hand-held devices, the useful area of interaction for the user with the device is limited by the length of the user's arm. This geometrical limitation of interaction of the user with the real world consequentially limits the ability of the user's interaction with objects in the real and augmented world facilitated by the hand-held device. Therefore, the user is limited to the interaction on the hand-held device's screen or to a small area limited by the length of the user's arm.
The spatial restriction of the interaction between the user and the device is exasperated in augmented reality where the hand-held device needs to be positioned within the user's field of view with one hand. The other unoccupied hand can be used to interact with the device or with the real world. The geometric limitation on the space for the user to interact with is limited to an arm's length of the user holding the hand-held device and the maximum distance between the user and the hand-held device for the user to comfortably view the display unit.
Another problem presented with the hand-held device is the limitation on the granularity of control achieved by using a finger to interact with the touch screens on a device. Furthermore, with the advances in technology, the screen resolution is rapidly increasing allowing the device to display more and more information. The increase in screen resolution is leading to the diminishing ability of the users to accurately interact with the device at finer granularities. To help alleviate the problem, some device manufacturers provide wands that allow for finer granularity of control for the users. However, the carrying, safeguarding and retrieving of yet another article to operate the hand-held device has presented a significant bar in the market acceptance of these wands.
Techniques are provided to expand the radius of the activity with the real world within the field of view of the camera using a gesture in front of the camera to allow the user the capability of extending and interacting further into the real and augmented world with finer granularity.
For example, the expansion of the radius of the activity of the real world is triggered by a hand or finger gesture performed in the field of view of the camera. This gesture is recognized and results in a visual extension of the hand or finger far into the field of view presented by the display unit of the device. The extended extremity can then be used to interact with more distant objects in the real and augmented world.
An example of a method to enhance computer vision applications involving a user's at least one pre-defined gesture may include electronically detecting at least one pre-defined gesture generated by a user's extremity as obtained by a camera coupled to a device; in response to detecting the at least one pre-defined gesture, changing a shape of a visual cue on a display unit coupled to the device; and updating the visual cue displayed on the display unit in response to detecting a movement of the user's extremity. The device may be one of a hand-held device, video game console, tablet, smart phone, point-and-shoot camera, personal digital assistant and mobile device. In one aspect, the visual cue comprises a representation of the user's extremity and changing the shape of the visual cue includes extending the visual cue on the display unit further into a field of view presented by the display unit. In another aspect, changing the shape of the visual cue comprises narrowing a tip of the representation of the user's extremity presented by the display unit.
In one example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the rear-facing camera. In another example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the front-facing camera.
In some implementations, the at least one pre-defined gesture comprises a first gesture and a second gesture, wherein upon detecting the first gesture the device activates a mode that allows changing the shape of the visual cue and upon detecting the second gesture the device changes the shape of the visual cue displayed on the display unit. In one embodiment, the visual cue may comprise a representation of an extension of the user's extremity displayed on the display unit coupled to the device. In another embodiment, the visual cue may comprise a virtual object selected by the at least one pre-defined gesture and displayed on the display unit coupled to the device. Extending the visual cue on the display unit may comprise tracking of the movement and a direction of the movement of the user's extremity, and extending of the visual cue on the display unit in the direction of the movement of the user's extremity, wherein extending of the visual cue represented on the display unit of the device in a particular direction is directly proportional to the movement of the user's extremity in that direction.
An example device implementing the system may include a processor; an input sensory unit coupled to the processor; a display unit coupled to the processor; and a non-transitory computer readable storage medium coupled to the processor, wherein the non-transitory computer readable storage medium may comprise code executable by the processor for implementing a method comprising electronically detecting at least one pre-defined gesture generated by a user's extremity as obtained by a camera coupled to a device; in response to detecting the at least one pre-defined gesture, changing a shape of a visual cue on a display unit coupled to the device; and updating the visual cue displayed on the display unit in response to detecting a movement of the user's extremity.
The device may be one of a hand-held device, video game console, tablet, smart phone, point-and-shoot camera, personal digital assistant and mobile device. In one aspect, the visual cue comprises a representation of the user's extremity and changing the shape of the visual cue includes extending the visual cue on the display unit further into a field of view presented by the display unit. In another aspect, changing the shape of the visual cue comprises narrowing a tip of the representation of the user's extremity presented by the display unit.
In one example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the rear-facing camera. In another example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the front-facing camera. In some implementations, the at least one pre-defined gesture comprises a first gesture and a second gesture, wherein upon detecting the first gesture the device activates a mode that allows changing the shape of the visual cue and upon detecting the second gesture the device changes the shape of the visual cue displayed on the display unit.
Implementations of such a device may include one or more of the following features. In one embodiment, the visual cue may comprise a representation of an extension of the user's extremity displayed on the display unit coupled to the device. In another embodiment, the visual cue may comprise a virtual object selected by the at least one pre-defined gesture and displayed on the display unit coupled to the device. Extending the visual cue on the display unit may comprise tracking of the movement and a direction of the movement of the user's extremity, and extending of the visual cue on the display unit in the direction of the movement of the user's extremity, wherein extending of the visual cue represented on the display unit of the device in a particular direction is directly proportional to the movement of the user's extremity in that direction.
An example non-transitory computer readable storage medium coupled to a processor, wherein the non-transitory computer readable storage medium comprises a computer program executable by the processor for implementing a method comprising electronically detecting at least one pre-defined gesture generated by a user's extremity as obtained by a camera coupled to a device; in response to detecting the at least one pre-defined gesture, changing a shape of a visual cue on a display unit coupled to the device; and updating the visual cue displayed on the display unit in response to detecting a movement of the user's extremity.
The device may be one of a hand-held device, video game console, tablet, smart phone, point-and-shoot camera, personal digital assistant and mobile device. In one aspect, the visual cue comprises a representation of the user's extremity and changing the shape of the visual cue includes extending the visual cue on the display unit further into a field of view presented by the display unit. In another aspect, changing the shape of the visual cue comprises narrowing a tip of the representation of the user's extremity presented by the display unit.
In one example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the rear-facing camera. In another example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the front-facing camera. In some implementations, the at least one pre-defined gesture comprises a first gesture and a second gesture, wherein upon detecting the first gesture the device activates a mode that allows changing the shape of the visual cue and upon detecting the second gesture the device changes the shape of the visual cue displayed on the display unit.
Implementations of such a non-trasitory computer readable storage product may include one or more of the following features. In one embodiment, the visual cue may comprise a representation of an extension of the user's extremity displayed on the display unit coupled to the device. In another embodiment, the visual cue may comprise a virtual object selected by the at least one pre-defined gesture and displayed on the display unit coupled to the device. Extending the visual cue on the display unit may comprise tracking of the movement and a direction of the movement of the user's extremity, and extending of the visual cue on the display unit in the direction of the movement of the user's extremity, wherein extending of the visual cue represented on the display unit of the device in a particular direction is directly proportional to the movement of the user's extremity in that direction.
An example apparatus performing a method to enhance computer vision applications, the method comprising a means for electronically detecting at least one pre-defined gesture generated by a user's extremity as obtained by a camera coupled to a device; in response to detecting the at least one pre-defined gesture, a means for changing a shape of a visual cue on a display unit coupled to the device; and a means for updating the visual cue displayed on the display unit in response to detecting a movement of the user's extremity.
The device may be one of a hand-held device, video game console, tablet, smart phone, point-and-shoot camera, personal digital assistant and mobile device. In one aspect, the visual cue comprises a means for representing a user's extremity and a means for changing the shape of the visual cue includes a means for extending the visual cue on the display unit further into a field of view presented by the display unit. In another aspect, changing the shape of the visual cue comprises a means for narrowing a tip of the representation of the user's extremity presented by the display unit.
In one example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the rear-facing camera. In another example setting, the device detects the pre-defined gesture generated by a user's extremity in a field of view of the front-facing camera. In some implementations, the at least one pre-defined gesture comprises a first gesture and a second gesture, wherein upon detecting the first gesture the device has a means for activating a mode that allows a means for changing the shape of the visual cue and upon detecting the second gesture the device changes the shape of the visual cue displayed on the display unit.
An exemplary setting for the apparatus in the system for performing the method may include one or more of the following. In one embodiment, the visual cue may comprise a means for representing an extension of the user's extremity displayed on the display unit coupled to the device. In another embodiment, the visual cue may comprise a virtual object selected by the at least one pre-defined gesture and displayed on the display unit coupled to the device. Extending the visual cue on the display unit may comprise a means for tracking of the movement and a direction of the movement of the user's extremity, and extending of the visual cue on the display unit in the direction of the movement of the user's extremity, wherein extending of the visual cue represented on the display unit of the device in a particular direction is directly proportional to the movement of the user's extremity in that direction.
The foregoing has outlined rather broadly the features and technical advantages of examples according to disclosure in order that the detailed description that follows can be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed can be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the spirit and scope of the appended claims. Features which are believed to be characteristic of the concepts disclosed herein, both as to their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purpose of illustration and description only and not as a definition of the limits of the claims.
The following description is provided with reference to the drawings, where like reference numerals are used to refer to like elements throughout. While various details of one or more techniques are described herein, other techniques are also possible. In some instances, well-known structures and devices are shown in block diagram form in order to facilitate describing various techniques.
A further understanding of the nature and advantages of examples provided by the disclosure can be realized by reference to the remaining portions of the specification and the drawings, wherein like reference numerals are used throughout the several drawings to refer to similar components. In some instances, a sub-label is associated with a reference numeral to denote one of multiple similar components. When reference is made to a reference numeral without specification to an existing sub-label, the reference numeral refers to all such similar components.
Embodiments of the invention include techniques for expanding the radius of interaction with the real world within the field of view of a camera using a pre-defined gesture. The pre-defined gesture by the user in front of the camera coupled to a device allows the user to extend the user's reach into the real and augmented world with finer granularity.
Referring to the example of
Embodiments of the invention allow the user to overcome the spatial limitation described while referring to the example of
In one embodiment of the invention, the hand-held device detects a pre-defined gesture by the user using his/her extremity in the field of view 216 of the rear-facing camera to further expand the radius of the interaction with the hand-held device 206. The gesture can be the unfurling of a finger (as shown in
Upon detection of a pre-defined gesture, the hand-held device 206 may enter a mode that allows the extension of the visual cue into the real and augmented world as presented on the display unit. The hand-held device 206 accomplishes the extension of radius of interaction by allowing the extension of a visual cue further into the field of view 216 presented by the display unit. In some embodiments, the visual cue may be a human extremity. Examples of human extremities may include a finger, a hand, an arm or a leg. The visual cue may be extended in the field of view presented by the display unit by the hand-held device 206 by changing the shape of the visual cue. For example, if the visual cue is a finger, the finger may be further elongated as presented to the user on the display unit. In another implementation, the finger may be narrowed and sharpened to create the visual effect of elongating the finger. In yet another embodiment, the finger may be presented by the display unit as both elongated and narrowed. The field of view displayed on the display unit may also be adjusted by zooming the image in and out to further increase the reach of the visual cue.
The hand held device 206 allows the extended user extremity to interact with and manipulate more distinct objects in the real and augmented world with a much longer reach and with a much finer granularity. For example, embodiments of the invention may be used to precisely manipulate a small cube that is 2 meters away in the augmented reality. The speed and direction of a particular movement can be used to determine how far the human extremity extends into the real or augmented world. In another example, the device may allow the user to select text on a far away bulletin board for translation by the hand-held device 206 in a foreign country. Embodiments of the invention embedded in the hand-held device may allow the user to reach out to the bulletin board using the visual cue and select the foreign language text for translation. The types of interaction of the extended human extremity with the object may include but is not limited to pointing, shifting, turning, pushing, grasping, rotating, and clamping objects in the real and augmented world.
The visual cue from the extended user extremity also replaces the need of a wand for interacting with hand-held devices. The wand allows the user to interact with objects displayed on the display unit of a touch screen at a finer granularity. However, the user needs to carry the wand and retrieve it each and every time the user wants to interact with the hand-held device using the wand. Also, the granularity of the wand is not adjustable. The visual cue generated from the extended user extremity also provides the benefits of finer granularity attributed to a wand. Narrowing and sharpening of the user's extremity as displayed on the display unit of the hand-held device 206 allows the user to select or manipulate objects at a much finer granularity. The use of the visual cue displayed on the display unit of the hand-held device 206 also allows the user to select and manipulate objects in a traditional display of elements by the display unit. For instance, the visual cue may allow the user to work with applications that need finer granularity of control and are feature rich like Photoshop® or simply select a person from a picture from out of a crowd. Similarly, in an augmented reality setting the instant access to a visual cue with fine granularity would allow the user to select a person with much greater ease from a crowd that is in the field of view of the camera and displayed on the display unit of the hand-held device 206.
Referring back to the example of
Referring to
In another embodiment, the hand-held device recognizes a gesture by the user that allows the user to activate a virtual object. The selection of the virtual object may also depend on the application running at the time the gesture is recognized by the hand-held device. For instance, the hand-held device may select a golf club when the application running in the foreground on the hand-held device is a golf gaming application. Similarly, if the application running in the foreground is a photo editing tool the virtual object selected could be a paint brush or a pencil instead. Examples of a virtual object could be a virtual wand, virtual golf club or a virtual hand. The virtual objects available for selection may also be displayed as a bar menu on the display unit. In one implementation, repetitive or distinct gestures could select different virtual objects from the bar menu. Similarly, as described above, the speed and direction of the movement of the user with their extremity while the virtual object is active may cause the virtual object to extend or retract into the real or augmented world proportionally.
Detection of different gestures by the hand-held device may activate different extension modes and virtual objects simultaneously. For instance, a device may activate an extension mode triggered by the user that allows the user to extend the reach of their arm by the movement of the arm followed by the reach of their finger by unfurling the finger.
Referring to the example flow from
At block 504, the change in the shape of the visual cue allows the user to bridge the gap between the real world and the augmented world. The size and characteristics of the user's arm, hand and fingers are not suitable for interacting with objects in the augmented world. The hand-held device by changing the shape of the extremity or any other visual cue allows the user to manipulate the objects displayed on the display unit of the hand-held device. In some embodiments, the field of view displayed by the display unit may also be altered by the hand-held device to give the perception of the change in the shape of the visual cue. In an example setting, the display unit of the hand-held device may display a room with a door. Using current technologies, emulating turning of the door knob by the user with the same precision in movement as the user would use in the real world is difficult. Even if prior-art hand-held device can capture the detail in the movement by the user, prior-art hand-held devices are incapable of projecting the detail of the door and the user's interaction with the door to the user in a meaningful way for the user to manipulate the door knob with precision. The embodiments of the present invention performed by the hand-held device may change the shape of the visual cue, for instance, by drastically shrinking the size of the arm and the hand (that is present in the field of view of the camera) that may allow the user to interact with the door knob with precision.
It should be appreciated that the specific steps illustrated in
Referring to the example flow of
At block 604, the hand-held device detects extending of the reach of the user's extremity and allows the user to extend the reach of their extremity by extending the visual cue further out into the field of view presented in the display unit of the hand held device. The hand-held device may create the perception of extending the reach of the visual cue in a number of ways. In one implementation, the hand-held device may lengthen the representation of the extremity on the display unit. For example, if the visual cue is a finger, the hand-held device may further elongate the finger as presented to the user on the display unit. In another implementation, the hand-held device may narrow and sharpen the representation of the extremity on the hand-held device to give the user the perception that the extremity is reaching into the far distance in the field of view displayed by the display unit. The field of view displayed on the display unit may also be adjusted by zooming the image in and out to further increase the reach of the visual cue. The exemplary implementations described are non-limiting and the perception of reaching into the far distance by extending the reach of the visual cue may be generated by combining the techniques described herein, or by using other techniques that give the same visual effect of extending the reach of the visual cue as displayed on the display unit. At block 606, the extended visual cue allows the user to interact with objects far into the field of view displayed on the display unit. For example, the user can use the extended reach to reach out into a meadow of wild flowers and pluck the flower that the user is interested in.
It should be appreciated that the specific steps illustrated in
Referring to the example flow of
At block 704, the shape of a visual cue narrows and/or sharpens as presented by the display unit of the hand-held device. The narrower and sharper visual cue displayed on the display unit allows the user to use the visual cue as a pointing device or a wand. The visual cue may be the user's extremity. Examples of human extremities may include a finger, a hand, an arm or a leg. In one embodiment, as the user moves the extremity further into the distance, the visual cue becomes narrower and sharper. As the hand-held device detects the user moving the extremity back to its original position, the hand-held device may return the width and shape of the extremity to normal. Therefore, the width and the sharpness of the visual cue may be easily adjustable, as displayed by the display unit, by the user by moving the extremity back and forth. The visual cue generated by the hand-held device and displayed on the display unit using the user extremity also provides the benefits of finer granularity attributed to a wand. Narrowing and sharpening of the user's extremity as displayed on the display unit allows the user to select or manipulate objects at a much finer granularity. The use of the visual cue also allows the user to select and manipulate objects in a traditional display of objects by the display unit. For instance, the visual cue may allow the user to work with applications that need finer granularity and are feature rich like Photoshop® or simply select a person from a picture displaying a crowd. Similarly, in an augmented reality setting the instant access to a visual cue with fine granularity would allow the user to select a person with much greater ease from a crowd that is in the field of view of the rear-facing camera and displayed on the display unit of the hand-held device.
It should be appreciated that the specific steps illustrated in
Referring to
In response to the gesture, at block 804, the hand-held device starts tracking the motion and direction of motion of the user's extremity. In one embodiment, the hand-held device activates a special mode in response to detecting the pre-defined gesture at block 802. When the hand-held device is in this special mode, motion associated with certain extremities may be tracked for the duration that the hand-held device is in that special mode. The hand-held device may track the motion in a pre-defined direction or for a pre-defined speed or faster. At block 806, the visual cue extends further into the field of view presented by the display unit in response to the extremity moving further away from the camera. Similarly, if the user's extremity is retracted towards the camera, the visual cue may also retract in the field of view presented on the display unit. At block 808, the device employs the extended visual cue to interact with an object as manipulated by the user in the field of view presented by the display unit.
It should be appreciated that the specific steps illustrated in
A computer system as illustrated in
The device 900 is shown comprising hardware elements that can be electrically coupled via a bus 905 (or may otherwise be in communication, as appropriate). The hardware elements may include one or more processors 910, including without limitation one or more general-purpose processors and/or one or more special-purpose processors (such as digital signal processing chips, graphics acceleration processors, and/or the like); one or more input devices 915, which can include without limitation a camera, a mouse, a keyboard and/or the like; and one or more output devices 920, which can include without limitation a display unit, a printer and/or the like.
The device 900 may further include (and/or be in communication with) one or more non-transitory storage devices 925, which can comprise, without limitation, local and/or network accessible storage, and/or can include, without limitation, a disk drive, a drive array, an optical storage device, a solid-state storage device such as a random access memory (“RAM”) and/or a read-only memory (“ROM”), which can be programmable, flash-updateable and/or the like. Such storage devices may be configured to implement any appropriate data storage, including without limitation, various file systems, database structures, and/or the like.
The device 900 might also include a communications subsystem 930, which can include without limitation a modem, a network card (wireless or wired), an infrared communication device, a wireless communication device and/or chipset (such as a Bluetooth™ device, an 802.11 device, a WiFi device, a WiMax device, cellular communication facilities, etc.), and/or the like. The communications subsystem 930 may permit data to be exchanged with a network (such as the network described below, to name one example), other computer systems, and/or any other devices described herein. In many embodiments, the device 900 will further comprise a non-transitory working memory 935, which can include a RAM or ROM device, as described above.
The device 900 also can comprise software elements, shown as being currently located within the working memory 935, including an operating system 940, device drivers, executable libraries, and/or other code, such as one or more application programs 945, which may comprise computer programs provided by various embodiments, and/or may be designed to implement methods, and/or configure systems, provided by other embodiments, as described herein. Merely by way of example, one or more procedures described with respect to the method(s) discussed above might be implemented as code and/or instructions executable by a computer (and/or a processor within a computer); in an aspect, then, such code and/or instructions can be used to configure and/or adapt a general purpose computer (or other device) to perform one or more operations in accordance with the described methods.
A set of these instructions and/or code might be stored on a computer-readable storage medium, such as the storage device(s) 925 described above. In some cases, the storage medium might be incorporated within a computer system, such as device 900. In other embodiments, the storage medium might be separate from a computer system (e.g., a removable medium, such as a compact disc), and/or provided in an installation package, such that the storage medium can be used to program, configure and/or adapt a general purpose computer with the instructions/code stored thereon. These instructions might take the form of executable code, which is executable by the device 900 and/or might take the form of source and/or installable code, which, upon compilation and/or installation on the device 900 (e.g., using any of a variety of generally available compilers, installation programs, compression/decompression utilities, etc.) then takes the form of executable code.
Substantial variations may be made in accordance with specific requirements. For example, customized hardware might also be used, and/or particular elements might be implemented in hardware, software (including portable software, such as applets, etc.), or both. Further, connection to other computing devices such as network input/output devices may be employed.
Some embodiments may employ a computer system or device (such as the device 900) to perform methods in accordance with the disclosure. For example, some or all of the procedures of the described methods may be performed by the device 900 in response to processor 910 executing one or more sequences of one or more instructions (which might be incorporated into the operating system 940 and/or other code, such as an application program 945) contained in the working memory 935. Such instructions may be read into the working memory 935 from another computer-readable medium, such as one or more of the storage device(s) 925. Merely by way of example, execution of the sequences of instructions contained in the working memory 935 might cause the processor(s) 910 to perform one or more procedures of the methods described herein.
The terms “machine-readable medium” and “computer-readable medium,” as used herein, refer to any medium that participates in providing data that causes a machine to operate in a specific fashion. In an embodiment implemented using the device 900, various computer-readable media might be involved in providing instructions/code to processor(s) 910 for execution and/or might be used to store and/or carry such instructions/code (e.g., as signals). In many implementations, a computer-readable medium is a physical and/or tangible storage medium. Such a medium may take many forms, including but not limited to, non-volatile media, volatile media, and transmission media. Non-volatile media include, for example, optical and/or magnetic disks, such as the storage device(s) 925. Volatile media include, without limitation, dynamic memory, such as the working memory 935. Transmission media include, without limitation, coaxial cables, copper wire and fiber optics, including the wires that comprise the bus 905, as well as the various components of the communications subsystem 930 (and/or the media by which the communications subsystem 930 provides communication with other devices). Hence, transmission media can also take the form of waves (including without limitation radio, acoustic and/or light waves, such as those generated during radio-wave and infrared data communications).
Common forms of physical and/or tangible computer-readable media include, for example, a floppy disk, a flexible disk, hard disk, magnetic tape, or any other magnetic medium, a CD-ROM, any other optical medium, punchcards, papertape, any other physical medium with patterns of holes, a RAM, a PROM, EPROM, a FLASH-EPROM, any other memory chip or cartridge, a carrier wave as described hereinafter, or any other medium from which a computer can read instructions and/or code.
Various forms of computer-readable media may be involved in carrying one or more sequences of one or more instructions to the processor(s) 910 for execution. Merely by way of example, the instructions may initially be carried on a magnetic disk and/or optical disc of a remote computer. A remote computer might load the instructions into its dynamic memory and send the instructions as signals over a transmission medium to be received and/or executed by the device 900. These signals, which might be in the form of electromagnetic signals, acoustic signals, optical signals and/or the like, are all examples of carrier waves on which instructions can be encoded, in accordance with various embodiments of the invention.
The communications subsystem 930 (and/or components thereof) generally will receive the signals, and the bus 905 then might carry the signals (and/or the data, instructions, etc. carried by the signals) to the working memory 935, from which the processor(s) 910 retrieves and executes the instructions. The instructions received by the working memory 935 may optionally be stored on a non-transitory storage device 925 either before or after execution by the processor(s) 910.
The methods, systems, and devices discussed above are examples. Various embodiments may omit, substitute, or add various procedures or components as appropriate. For instance, in alternative configurations, the methods described may be performed in an order different from that described, and/or various stages may be added, omitted, and/or combined. Also, features described with respect to certain embodiments may be combined in various other embodiments. Different aspects and elements of the embodiments may be combined in a similar manner. Also, technology evolves and, thus, many of the elements are examples that do not limit the scope of the disclosure to those specific examples.
Specific details are given in the description to provide a thorough understanding of the embodiments. However, embodiments may be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the embodiments. This description provides example embodiments only, and is not intended to limit the scope, applicability, or configuration of the invention. Rather, the preceding description of the embodiments will provide those skilled in the art with an enabling description for implementing embodiments of the invention. Various changes may be made in the function and arrangement of elements without departing from the spirit and scope of the invention.
Also, some embodiments were described as processes depicted as flow diagrams or block diagrams. Although each may describe the operations as a sequential process, many of the operations can be performed in parallel or concurrently. In addition, the order of the operations may be rearranged. A process may have additional steps not included in the figure. Furthermore, embodiments of the methods may be implemented by hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof When implemented in software, firmware, middleware, or microcode, the program code or code segments to perform the associated tasks may be stored in a computer-readable medium such as a storage medium. Processors may perform the associated tasks.
Having described several embodiments, various modifications, alternative constructions, and equivalents may be used without departing from the spirit of the disclosure. For example, the above elements may merely be a component of a larger system, wherein other rules may take precedence over or otherwise modify the application of the invention. Also, a number of steps may be undertaken before, during, or after the above elements are considered. Accordingly, the above description does not limit the scope of the disclosure.
This application claims priority to U.S. Provisional Application No. 61/499,645 entitled “Gesture-Controlled Technique to Expand Interaction Radius in Computer Vision Applications,” filed Jun. 21, 2011, and is hereby incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| 61499645 | Jun 2011 | US |
