P-frame interpolating method aimed at whole frame loss error concealment in video coding and decoding
A technology for video encoding and decoding and missing frames, applied in the field of P frame interpolation, can solve the problem of not improving the quality of masking, and achieve the effect of good visual effect and improved masking quality.
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[0033] Based on the above pair figure 1 For the description of the method flow, this embodiment uses the H.264 reference codec JM15.1 for software simulation. The encoder part of this model can encode the YUV image sequence, output the code stream format file, and decode its part can decode the code stream compatible with the H.264 standard into a YUV sequence. The RTP packet loss simulator provided by the JM model is used to perform packet loss simulation on the code stream sequence.
[0034] This embodiment first modifies the decoder workflow. When it is decoding, before it covers the lost frame, a module is added to obtain the motion vector of the next frame, and then the interface function to cover the lost frame is called, and finally the masked frame is inserted into the output buffer before the next frame To be output.
[0035] Use JM encoder to encode test video sequences such as table, foreman, coastguard, Stephan, Paris, and headwithglasses into H.264 st...
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