CAJ | 학술논문

文中首先针对由于视频帧间相关性利用不彻底而导致系统重构效率较低的现象，提出了视频封装帧设计方案，从压缩端和重构端双重考虑视频帧间相关性，并通过理论和仿真实验证明了封装帧方案的可行性和提高系统性能的科学性。其次针对目前重构算法对视频大数据压缩处理的先天不足，提出了自迭代阈值正则化正交匹配追踪( SiT-ROMP)算法，该算法既保证了很好的视频压缩重构质量，又大大缩短了重构时间，同时，通过仿真实验说明了SiT-ROMP算法的可行性以及相比其他重构算法的高效性。最后，将视频封装帧方案和SiT-ROMP算法相融合，提出了基于SiT-ROMP算法的视频封装帧压缩重构技术，并通过仿真实验表明了基于SiT-ROMP算法的视频封装帧压缩重构技术在视频压缩重构的质量和效率两个性能方面的合理性和优越性。
문중수선침대유우시빈정간상관성이용불철저이도치계통중구효솔교저적현상，제출료시빈봉장정설계방안，종압축단화중구단쌍중고필시빈정간상관성，병통과이론화방진실험증명료봉장정방안적가행성화제고계통성능적과학성。기차침대목전중구산법대시빈대수거압축처리적선천불족，제출료자질대역치정칙화정교필배추종( SiT-ROMP)산법，해산법기보증료흔호적시빈압축중구질량，우대대축단료중구시간，동시，통과방진실험설명료SiT-ROMP산법적가행성이급상비기타중구산법적고효성。최후，장시빈봉장정방안화SiT-ROMP산법상융합，제출료기우SiT-ROMP산법적시빈봉장정압축중구기술，병통과방진실험표명료기우SiT-ROMP산법적시빈봉장정압축중구기술재시빈압축중구적질량화효솔량개성능방면적합이성화우월성。
Firstly,a design scheme of Encapsulating Video Frame ( EVF) is proposed,aiming at ameliorating the situation where the effi-ciency of reconstruction system is low because of incomplete correlation between video frame. Hence it takes full use of correlation of vid-eo frame between compression and reconstruction,what’ s more,its feasibility and the scientificity of improving the system performance are proved by theories and experiments. Then,according to disadvantages of compressing big data technology by current algorithms,the new improved algorithm named Self-iterative Threshold Regularized Orthogonal Matching Pursuit ( SiT-ROMP) is proposed. This algo-rithm not only guarantees the good quality of compression and reconstruction on video,but also shortens the reconstruction time greatly. And the experiment results show its feasibility and efficiency compared with other algorithms. Finally,combined EVF scheme and SiT-ROMP algorithm,propose a new method of SiT-ROMP algorithm based on EVF scheme. And the experiment results show that this scheme has considerable rationality and superiority in the quality and efficiency of compression and reconstruction on video.