This application claims the benefit of Taiwan application Serial No. 102133271, filed Sep. 13, 2013, the subject matter of which is incorporated herein by reference.
The invention relates in general to an electronic device, and more particularly to a head mounted system.
As technology progresses, people receive more information from electronic devices, such as multimedia players, network communication devices, and computers, which are equipped with display devices such as CRTs or LCDs for displaying images. The number of pixels and size of the image displayed by the display devices are constrained by the size of the display devices and their performance. Hence, the conventional CRT or LCD displays cannot meet the requirement of compact, portability, and a size with high display quality. For resolving this problem, the head-mounted display (HMD) is provided in the market. The head-mounted display provides two small tubes or LCDs disposed in front of the left and right eyes of a person. For example, a head-mounted display achieves stereoscopic effects by using binocular parallax, which projects images outputted from the tubes or LCDs through beam splitters onto the eyes of the user.
The disclosure is directed to a head mounted system.
According to an embodiment, a head mounted system is provided. The head mounted system includes an abnormality sensing unit, a plurality of image capturing devices, a signal processing circuit, a memory, an application processor, and an eyeglass frame. The abnormality sensing unit detects an abnormal situation. The signal processing circuit outputs a warning signal and makes at least one of the image capturing devices start video recording when the abnormal situation occurs. The application processor receives the warning signal and storing video data, after the video recording is started, in the memory. The eyeglass frame carries the abnormality sensing unit, the image capturing devices, the signal processing circuit, the memory, and the application processor.
According to another embodiment, a head mounted system is provided. The head mounted system includes an auxiliary image capturing device, a main image capturing device, a signal processing circuit, a memory, an application processor, and an eyeglass frame. The auxiliary image capturing device detects an abnormal situation. The signal processing circuit outputs a warning signal and makes the main image capturing device start video recording when the abnormal situation occurs. The application processor receives the warning signal and stores video data, after the video recording starting, in the memory. The eyeglass frame carries the auxiliary image capturing device, the main image capturing device, the signal processing circuit, the memory, and the application processor.
The above and other aspects of the disclosure will become better understood with regard to the following detailed description of the preferred but non-limiting embodiment(s). The following description is made with reference to the accompanying drawings.
Referring to
The signal processing circuit 12, for example, is an application-specific integrated circuit (ASIC), and the signal processing circuit 12 communicates with the application processor 14 through a universal serial bus (USB). The first front image capturing device 16a and the second front image capturing device 16b are connected to the application processor 14 and communicate with the application processor 14 through a mobile interface processor interface (MIPI). The first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b are connected to the signal processing circuit 12, and communicate with the signal processing circuit 12 through a parallel interface (I/F) or MIPI.
The first front image capturing device 16a, disposed in the front of the eyeglass frame 15, is used for capturing a first front image, and the second front image capturing device 16b, disposed in the front of the eyeglass frame 15, is used for capturing a second front image. The viewing angles of the first front image capturing device 16a and the second front image capturing device 16b coincide with those of the human eyes. The first side image capturing device 17a, disposed in a first side of the eyeglass frame 15, is used for capturing a first side image. The second side image capturing device 17b, disposed in a second side of the eyeglass frame 15, is employed for capturing a second side image. The first side is a right side, for example, and the second side is a left side, for example. The viewing angles of the first side image capturing device 17a and the second side image capturing device 17b are different from those of the first front image capturing device 16a and the second front image capturing device 16b. The first rear image capturing device 18a, disposed in a rear of the eyeglass frame 15, is used for capturing a first rear image. The second rear image capturing device 18b, disposed in the rear of the eyeglass frame 15, is used for capturing a second rear image. The viewing angles of the first rear image capturing device 18a and the second rear image capturing device 18b are different from those of the first side image capturing device 17a and the second side image capturing device 17b.
The first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a and the second rear image capturing device 18b can cover the blind spot of human eyes. The viewing angles of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b can cover 360 degrees.
The first infrared LED 19a is disposed adjacent to the first side image capturing device 17a, and the second infrared LED 19b is disposed adjacent to the second side image capturing device 17b. The third infrared LED 19c is disposed adjacent to the first rear image capturing device 18a, and the fourth infrared LED 19d is disposed adjacent to the second rear image capturing device 18b. The first infrared LED 19a, second infrared LED 19b, third infrared LED 19c, and the fourth infrared LED 19d are employed to provide auxiliary light.
The abnormality sensing unit 11 detects an abnormal situation. When the abnormal situation occurs, the signal processing circuit 11 outputs a warning signal AL to the application processor 14, and makes at least one of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b start video recording. The application processor 14 receives the warning signal, and stores video data, after the video recording is started, in the memory 13.
For the sake of illustration, the abnormality sensing unit 11 is implemented by a microphone, for example. The microphone senses an ambient sound. When the ambient sound is greater than a threshold, it is indicated that an abnormal situation occurs. The signal processing circuit 12 outputs a warning signal AL to the application processor 14, and makes the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b start video recording. For example, when a vehicle, such as a motorcycle or car, honks its horn loudly, the ambient sound may be greater than the threshold.
Referring to
The first side auxiliary image capturing device 27a, the second side auxiliary image capturing device 27b, the first rear auxiliary image capturing device 28a, and the second rear auxiliary image capturing device 28b capture ambient images. The signal processing circuit 12 determines whether an object is fast approaching according to the ambient images. When the object is fast approaching, it is indicated that the abnormal situation occurs.
It is noticed that the first side auxiliary image capturing device 27a, the second side auxiliary image capturing device 27b, the first rear auxiliary image capturing device 28a, and the second rear auxiliary image capturing device 28b are auxiliary image capturing devices. The first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b are main image capturing devices. The power consumption of the auxiliary image capturing devices is less than that of the main image capturing devices.
For example, the resolutions of the first side auxiliary image capturing device 27a, the second side auxiliary image capturing device 27b, the first rear auxiliary image capturing device 28a, and the second rear auxiliary image capturing device 28b are less than those of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b. Alternatively, the image capturing frequencies of the first side auxiliary image capturing device 27a, the second side auxiliary image capturing device 27b, the first rear auxiliary image capturing device 28a, and the second rear auxiliary image capturing device 28b are less than those of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b. In this way, the power consumption of the first side auxiliary image capturing device 27a, the second side auxiliary image capturing device 27b, the first rear auxiliary image capturing device 28a, and the second rear auxiliary image capturing device 28b may be less than that of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b, thus leading to a reduced power consumption for the system.
Referring to
Conversely, if an object is fast approaching, it is indicated that the abnormal situation occurs. As shown in step 504, the signal processing circuit 12 outputs a warning signal AL to the application processor 14, and the application processor 14, for example, may inform the user of the abnormal situation through a user interface. The user interface may be implemented by using a display device or a sound reproduction device. The signal processing circuit 12 makes the first side image capturing device 17a start video recording. In step 505, the first side image capturing device 17a then captures a first side image. In step 506, the signal processing circuit 12 performs a wide-angle lens correction on the first side image to generate a corrected side image. After that, in step 507, the application processor 14 stores video data in the memory 13, and the video data includes the corrected side image.
Referring to
Conversely, if an object is fast approaching, step 604 is performed. As shown in step 604, the signal processing circuit 12 outputs a warning signal AL to the application processor 14, and the application processor 14, for example, may inform the user of the abnormal situation through a user interface. The user interface may be implemented by using a display device or a sound reproduction device. The signal processing circuit 12 makes the first rear image capturing device 18a and the second rear image capturing device 18b start video recording. In step 605, the first rear image capturing device 18a captures a first rear image, and the second rear image capturing device 18b captures a second rear image. In step 606, the signal processing circuit 12 performs a wide-angle lens correction on the first rear image to generate a first corrected rear image, and performs a wide-angle lens correction on the second rear image to generate a second corrected rear image. In step 607, the signal processing circuit 12 combines the first corrected rear image and the second corrected rear image to generate a combined corrected rear image; this process is also called image stitching. After that, in step 608, the application processor 14 stores video data in the memory 13, and the video data includes the combined corrected rear image.
Specifically, when the auxiliary image capturing device detects an abnormal situation, the signal processing circuit 12 makes not only the main image capturing device adjacent to the signal processing circuit 12 start video recording, but also other main image capturing devices start video recording. For example, when the first side auxiliary image capturing device 27a detects that an abnormal situation occurs, the signal processing circuit 12 makes not only the first side image capturing device 17a start video recording, but also the first front image capturing device 16a and the second front image capturing device 16b start video recording.
In addition, the abnormality sensing unit of the head mounted system 2 may further include a microphone. When the microphone detects the abnormal situation, the signal processing circuit 11 outputs a warning signal AL to the application processor 14, and makes at least one of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b start video recording. The application processor 14 receives the warning signal and stores the video data in the memory 13 after the video recording is started.
Referring to
It is noticed that the arrangement of the auxiliary image capturing device and the main image capturing device may be one to one, but the implementation is not limited thereto. In another embodiment, a plurality of auxiliary image capturing devices may be accompanied with a main image capturing device. In yet another embodiment, an auxiliary image capturing device may be accompanied with a plurality of main image capturing devices. As shown in
In addition, the abnormality sensing unit of the head mounted system 3 may further include a microphone. When the microphone detects the abnormal situation, the signal processing circuit 11 outputs a warning signal AL to the application processor 14, and makes at least one of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b start video recording. The application processor 14 receives the warning signal, and stores the video data in the memory 13 after the video recording is started.
Referring to
In addition, the abnormality sensing unit of the head mounted system 4 may further include a microphone. When the microphone detects the abnormal situation, the signal processing circuit 11 outputs a warning signal AL to the application processor 14, makes at least one of the first front image capturing device 16a, the second front image capturing device 16b, the first side image capturing device 17a, the second side image capturing device 17b, the first rear image capturing device 18a, and the second rear image capturing device 18b start video recording. The application processor 14 receives the warning signal and stores the video data in the memory 13 after the video recording is started.
The above embodiments provide a head mounted system that can warn the user to protect oneself when an abnormal situation occurs. In addition, when an abnormal situation occurs, the head mounted system can start video recording to record the evidence of the scene. In addition, an extended time for self-protection with reduced power consumption can be achieved since the power consumption of the abnormality sensing unit is less than that of the main image capturing device and the main image capturing device is activated as an abnormal situation occurs.
While the disclosure has been described by way of example and in terms of the preferred embodiment(s), it is to be understood that the disclosure is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
Number | Date | Country | Kind |
---|---|---|---|
102133271 | Sep 2013 | TW | national |