Encoding device, method, and program

Abstract

Pictures can be encoded such that no display wait occurs on a decoding side. Pictures are re-encoded such that their encoding order is changed. As a result, picture B 3 is detected as picture Na+1 (Fig. 11A) that is decoded later than picture I 1 (picture Nd) by two pictures. Thus, picture P 3 (picture Na+2) (a picture displayed later than picture I 1 by two pictures) is contained in picture sequence {I 1 , P 2 , B 3 }. As shown in Fig. 11C and Fig. 11D, picture B 3 is decoded at a time corresponding to its displaying time. Thus, picture B 3 can be displayed at its displaying time.

Description

technical field [0001] The present invention relates to an encoding device, its method, and its program, and more particularly, to an encoding device, its method, and its program capable of encoding a picture so that display waiting does not occur on the decoding side Background technique [0002] Referring to FIG. 1 , the relationship between encoding and decoding in the AVC (Advanced Video Coding) standard, which is a moving image compression encoding standard, will be briefly described. [0003] The encoder 2 encodes a video signal and the like captured by the camera 1, and generates a bit stream based on the theory of bidirectional motion compensation inter prediction. [0004] If buffer 5 on the decoding side overflows or underflows, buffer 5 fails. In this case, the decoder cannot decode the bitstream correctly. Thus, the encoder 2 has to generate the bitstream such that the buffer 5 does not fail. [0005] To achieve this, the concept of a virtual decoder has been ...

AI Technical Summary

Problems solved by technology

In this case, in the actual decoding process, as shown in Fig. 2D, picture B 3 display waiting

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