Mobile terminal and method and system for recovering mosaic appearance of video phone therein
A mobile terminal and videophone technology, which is applied in TV, electrical components, digital video signal modification, etc., can solve the problems of videophone business inconvenience, long duration, inconvenience, etc., and achieve fast and alleviate videophone mosaic phenomenon The effect of network load
Inactive Publication Date: 2010-06-09
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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Problems solved by technology
Due to the complex situation of the actual wireless network or the shortage of network resources, the mosaic phenomenon often occurs, and only when the next I frame with a small bit error rate is received, the mosaic phenomenon can be recovered, and the recovery time is generally 5 seconds to 1 minute , a longer duration
This brings inconvenience to users using the videophone service of mobile terminals
[0004] In summary, the mosaic recovery technology of videophone in the existing mobile terminal obviously has inconvenience and defects in actual use, so it is necessary to improve it.
Method used
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[0031] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] According to the research of the present inventor, it is found that mosaic phenomenon often occurs when performing 3G videophone, and the reason for the mosaic is that the video data transmitted by both parties in the call has a high bit error rate. In the current China Mobile standard, the H.263 format is preferred for video data. All video data in this format is composed of I frame and P frame, among which I frame data is relatively large, generally 1K ~ 8KByte data, and P frame is relatively small, generally 10 ~ 100Byte data, the main body of the image displayed by I frame Partly, th...
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The invention discloses a method for recovering the mosaic appearance of a video phone in a mobile terminal, comprising the following steps: A, the mobile terminal calculates the bit error rate of opposite-end video data which is currently received, B, when the bit error rate is more than the threshold of the bit error rate, the mobile terminal degrades the encoding quality level of an I frame inthe local video data and requires an opposite-end mobile terminal to stop sending a P frame in the opposite-end video data and to continue to send an I frame of corresponding encoding quality level in the opposite-end video data; and C, the opposite-end mobile terminal sends the I frame of corresponding encoding quality level in the opposite-end video data to the mobile terminal according to the request of the mobile terminal. The invention also discloses the mobile terminal and a system for recovering the mosaic appearance of the video phone therein. The mosaic appearance of the video phone in the mobile terminal can be rapidly recovered.
Description
technical field [0001] The invention relates to mobile communication electronic technology, in particular to a mosaic recovery method and system for a videophone in a mobile terminal and a mobile terminal. Background technique [0002] With the popularization and development of 3G (Third Generation, third-generation mobile communication) technology, as an important service of 3G - videophone is also increasingly accepted and loved by consumers. Videophone is a multimedia communication service that integrates image and voice. It can realize face-to-face real-time communication between people, that is, both parties in the call can see each other's video and surrounding environment during the call, which fully satisfies the needs of both people when talking. Hear his voice and see his wishes. [0003] However, in the current videophone service of mobile terminals, mosaics often appear due to network or mobile terminal problems. The video data collected from the camera is comp...
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Login to View More IPC IPC(8): H04N7/50H04N7/26H04N7/64H04N19/166H04N19/23H04N19/89
Inventor 平玉财
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD