Patent Application
20140168386
The present invention relates to a projection system, and more particularly to a projection system and a projection method thereof.
With growing of technologies, a lot types of projection apparatus are widely used in homes, schools and business occasions (e.g. projectors), among which the projectors are used for projecting a video corresponding to a video signal provided by a video signal source on a screen. In recent years, the technologies grow day by day, so the user demands also increase. Besides the function of two-dimensional planar projection, the projectors are expected to have the function of three-dimensional projection.
Conventionally, a sensor element of a projection system is used in a conventional real object projector for capturing an image of a real object, and a projection module is used for projecting. Please refer to
In general, the projection system 1 and the projection method of the conventional real object projector mentioned above sample and capture a three-dimensional real object to be presented, which means the projection source may be not only a slide or a document, but also a three-dimensional object. However, by way of the conventional projection method, the image is captured by the single sensor element 112 and optimized by the two-dimensional image processing unit 114. Even if the projection source is a three-dimensional object, the projection presented by the projection module 13 is still a two-dimensional projection (i.e. a planar projection) but not a three-dimensional projection. Certainly, the user requirements cannot be satisfied by the conventional real object projector. Moreover, in some situations such like demonstrating, teaching or healing, the drawbacks of two-dimensional projection are highlighted because the two-dimensional projection cannot present the reality and the stereognosis of the real object. The real size and ratio of the real object cannot be presented because of limitations of image capturing angle, distance and photosensitivity.
There is a need of providing a projection system and a projection method thereof to obviate the drawbacks encountered from the prior art.
The present invention provides a projection system and a projection method thereof in order to eliminate the drawbacks caused by the two-dimensional projection, such like that the reality, the stereognosis, the real size and the real ratio cannot be presented by the two-dimensional projection of projection system of conventional real object projector.
The present invention also provides a projection system and a projection method thereof. An image is captured by a first image capture module and a second image capture module and transformed into a three-dimensional image signal by an image processing module. Under this circumstance, a three-dimensional image is projected, the user demands are met, and the reality and the stereognosis are effectively presented.
The present invention further provides a projection system and a projection method thereof. Via a first image capture module and a second image capture module with two sensor elements and two lenses, the human vision is simulated and the real size and ratio of an real object are precisely presented.
In accordance with an aspect of the present invention, there is provided a projection system. The projection system includes a control module, a first image capture module, a second image capture module, an image processing module and a projection module. The first image capture module is connected with the control module. The first image capture module includes a first lens and a first sensor connected with the first lens for capturing an image. The second image capture module is connected with the control module. The second image capture module includes a second lens and a second sensor element connected with the second lens for capturing the image. The image processing module is connected with the control module, the first image capture module and the second image capture module for transforming the image into a three-dimensional image signal. The projection module is connected with the control module for projecting. The first sensor element and the second sensor element are selectively controlled by the control module to capture the image through the first lens and the second lens, respectively. The three-dimensional image signal transformed by the image processing module is processed and converted by the control module, and further projected by the projection module.
In accordance with another aspect of the present invention, there is provided a projection method. The projection method includes steps as follows: providing a three-dimensional object and a projection system, among which the projection system includes a first image capture module, a second image capture module, an image processing module, a control module and a projection module; capturing the three-dimensional object as an image; transforming the image into a three-dimensional image signal; processing and converting the three-dimensional image signal; and allowing the projection module to project.
The above contents of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:
The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.
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In some embodiments, the image is captured by the first sensor element 221 of the first image capture module 22 through the first lens 222 or captured by the second sensor element 231 of the second image capture module 23 through the second lens 232, and transmitted to the image processing module 24. The image is transformed into a three-dimensional image signal by the image processing module 24. The three-dimensional image signal transformed by the image processing module 24 is received and processed by the control module 21, such that the data such like location, depth, angle, size and ratio of a three-dimensional image are constructed, but not limited thereto. After the image processing of the control module 21, the constructed three-dimensional image is converted into a signal format compatible with the projection module 25, and then projected by the projection module 25. Therefore, a real-time three-dimensional projection is implemented instantly.
In some embodiments, the image processing module 24 further includes an image processing unit 241. The image processing unit 241 is not limited to a 2D-to-3D video processing unit, and an algorithm is used for transforming the image into the three-dimensional image signal by the image processing unit 241. For example, a two-dimensional image is captured by the first image capture module 22 and/or the second image capture module 23 and transformed into the three-dimensional image signal through the algorithm by the image processing unit 241. The three-dimensional image signal is processed, converted and projected by the control module 21 and the projection module 25, in which the concept is similarly to the above embodiments, and is not redundantly described herein.
On the other hand, the human vision can be simulated by the projection system 2 of the present invention and the three-dimensional image with more precise location and depth can be constructed. To simulate the human vision, the image is preferably consisted by a first partial image and a second partial image. The first sensor element 221 of the first image capture module 22 and the second sensor element 231 of the second image capture module 23 are selectively started at the same time for capturing the real object as the image. A first partial image (e.g. a left-eye image) is captured through the first lens 222 by the first sensor element 221, and a second partial image (e.g. a right-eye image) is captured through the second lens 232 by the second sensor element 231. The first partial image and the second partial image are consisted to be the image, but not limited thereto. The image is transformed into the three-dimensional image signal according to the first partial image and the second partial image by the image processing unit 241 of the image processing module 24. For example, the first partial image and the second partial image are transmitted by the first image capture module 22 and the second image capture module 23 and received by the image processing module 24. The image is consisted, constructed and further transformed into the three-dimensional image signal. The three-dimensional image signal is received, converted and processed by the control module 21, such that the data such like location, depth, angle, size and ratio of the three-dimensional image are constructed, but not limited thereto. After the image processing and converting of the control module 21, the constructed three-dimensional image is converted into a signal format compatible with the projection module 25, and then projected by the projection module 25. As a result, a real-time three-dimensional projection is implemented instantly.
In this embodiment, the image processing unit 241 of the image processing module 24 is not limited to a 3D video processing unit, and the first partial image captured by the first image capture module 22 and the second partial image captured by the second image capture module 23 are consisted and constructed to be the image with 3D format. The image including the first partial image and the second partial image is transformed into the three-dimensional image signal by way of stacking, overlaying, space locating, depth computing and/or angle computing. The three-dimensional image signal is processed, converted and projected by the control module 21 and the projection module 25, in which the concept is similarly to the above embodiments, and is not redundantly described herein. Therefore, the human vision can be simulated by the projection system 2 of the present invention and the three-dimensional image with more precise size and ratio can be presented.
Furthermore, an assembly of a sensor element and a lens can be disabled according to the requirement. In some embodiments, the first sensor element 221 and the first lens 222 or the second sensor element 231 and the second lens 232 is selectively disabled by the control module 21, and the image is captured through the second lens 232 by the second sensor element 231 or captured through the first lens 222 by the first sensor element 221. For example, when a user wants to use the projection system 2 of the present invention for implementing a document projection, which is not limited to a slide projection, a paper projection or a textbook projection, the first sensor element 221 and the first lens 222 of the first image capture module 22 or the second sensor element 231 and the second lens 232 of the second image capture module 23 can be selectively disabled since the documents do not have the characteristics such like location, depth, angle and stereognosis. The image of a document is captured through the second lens 232 by the second sensor element 231 or captured through the first lens 222 by the first sensor element 221, and transformed into a three-dimensional image signal by the image processing module 24. The three-dimensional image signal is processed, converted and projected by the control module 21 and the projection module 25. Because the source document is a 2D planar document, the three-dimensional image signal is substantially an image signal with one dimension fixed. The projection image is substantially a two-dimensional image with the other dimension fixed and is for example a document projection image, among which the document projection image is perpendicular to the ground plane but not limited thereto.
Certainly, an assembly of a sensor element and a lens can also be disabled according to the requirement when implementing a three-dimensional real object projection. For example, the image captured by the first sensor element 221 and the first lens 222 or the second sensor element 231 and the second lens 232 is transformed into the three-dimensional image signal by using an algorithm of the image processing unit 241 as the above-mentioned embodiments.
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From the above description, the present invention provides a projection system and a projection method thereof. An image is captured by a first image capture module and a second image capture module and transformed into a three-dimensional image signal by an image processing module. Under this circumstance, a three-dimensional image is projected, the user demands are met, and the reality and the stereognosis are effectively presented. On the other hand, via a first image capture module and a second image capture module with two sensor elements and two lenses, the human vision is simulated and the real size and ratio of an real object are also precisely presented.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.
| Number | Date | Country | Kind |
|---|---|---|---|
| 101148164 | Dec 2012 | TW | national |
