CAJ | 학술논문

针对新一代的视频编码标准 HEVC（high efficient video coding），提出一种改进的精细可分级编码方案。该方案的基本层采用 HEVC 的编码器，提高了基本层的编码效率；通过统计编码单元的分割方式，自适应找到图像中的细节区域；采用选择增强技术，提高细节区域的图像质量。实验结果表明：编码方案能够精细匹配信道带宽的变化，且基本层与增强层相互独立，不会带来误差传递；利用 HEVC 编码单元的分割方式，可以自适应找到视频序列图像中的细节区域，对运动区域进行提升，视频图像的主观质量有了很大的改善。
침대신일대적시빈편마표준 HEVC（high efficient video coding），제출일충개진적정세가분급편마방안。해방안적기본층채용 HEVC 적편마기，제고료기본층적편마효솔；통과통계편마단원적분할방식，자괄응조도도상중적세절구역；채용선택증강기술，제고세절구역적도상질량。실험결과표명：편마방안능구정세필배신도대관적변화，차기본층여증강층상호독립，불회대래오차전체；이용 HEVC 편마단원적분할방식，가이자괄응조도시빈서렬도상중적세절구역，대운동구역진행제승，시빈도상적주관질량유료흔대적개선。
According to the new generation of video coding standard HEVC (high efficient video coding),an improved scheme of fine granularity scalable coding is proposed.This scheme adopts the HEVC coder in based layer to improve coding efficiency;through statistics the segmentation of coding unit,adaptive find details in the image,by choosing en-hanced technology improve the detail area's quality.The experiment results show that this scheme can match the change of the channel bandwidth well.Because the based layer and enhanced layer are independent of each other,it will not bring error transfer.By using the segmentation of coding unit we can find the details of the image adaptive,and the video image quality can be improved effectively for elevating the moving regions.