Video coding device and method applicable to low-bandwidth wireless communication channel
A technology of wireless communication and video coding, applied in wireless communication, image communication, television, etc.
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[0045] 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.
[0046] The present invention analyzes and studies the problems raised by the background technology and obtains solutions.
[0047] 1. Problem analysis
[0048] Three types of frames are defined in the H.264 protocol. A fully encoded frame is called an I frame. A frame that only contains coded differences generated by referring to the previous I frame is called a P frame. A frame encoded by referring to the preceding and following frames is called a B frame. In H.264, images are organized in units of sequences. A sequence is a data stream after encoding an image, starting with an I frame and endin...
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