基于H.265的4K电影编解码系统设计
发布时间：2019-06-09 13:11
【摘要】：随着科学技术的不断发展,在电影领域,超高清(UHD)以及4K视频出现取代高清(HD)格式的趋势。为保证UHD/4K影片的高效和高质量传输,新的视频编码算法要在UHD比HD多出三倍数据量的同时,保证相同的传输质量,并在传输带宽相同的情况下,尽量保持与HD相同的传输时间。本文分析了当前电影行业的原始视频格式,以及当前主流高清电影所采用的H.264视频格式。介绍了视频压缩技术的发展过程,并对比介绍了H.265标准相对于其他视频压缩标准的优缺点,从原理上解释了采用H.265的必要性。第三章,对比了目前主流的视频压缩质量评估技术方案。第四章,结合公司在视频压缩的需求,确定视频编码方法的使用,并设计符合需求的硬件播放器。第五章,定义了软件的基本功能需求,并介绍了软件外包团队所需编解码软件。第六章,针对四五章所设计的软硬件进行测试,在修正一系列BUG后,实验表明,所涉及方案明显优于目前主流的H.264压缩方式,图像质量显著高于H.264以及主流的H.265 4K 420 8 bit。达到公司项目的初步需求。
[Abstract]:With the continuous development of science and technology, ultra-high definition (UHD) and 4K video appear to replace high definition (HD) format in the field of film. In order to ensure the efficient and high quality transmission of UHD/4K films, the new video coding algorithm should ensure the same transmission quality while UHD produces three times more data than HD, and under the same transmission bandwidth, Try to maintain the same transmission time as HD. This paper analyzes the original video format of the current film industry and the H.264 video format used in the current mainstream high-definition movies. This paper introduces the development process of video compression technology, compares the advantages and disadvantages of H.265 standard compared with other video compression standards, and explains the necessity of adopting H.265 in principle. In the third chapter, the mainstream video compression quality evaluation technology scheme is compared. The fourth chapter, combined with the requirements of the company in video compression, determine the use of video coding methods, and design a hardware player to meet the requirements. In the fifth chapter, the basic functional requirements of the software are defined, and the coding and decoding software needed by the software outsourcing team is introduced. In the sixth chapter, the hardware and software designed in Chapter 4 and 5 are tested. After modifying a series of BUG, the experiment shows that the scheme involved is obviously superior to the current mainstream H.264 compression mode. The image quality is significantly higher than H.264 and mainstream H.265 4K 420 8 bit.. Meet the initial needs of the company's projects.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN919.81
本文编号：2495579
[Abstract]:With the continuous development of science and technology, ultra-high definition (UHD) and 4K video appear to replace high definition (HD) format in the field of film. In order to ensure the efficient and high quality transmission of UHD/4K films, the new video coding algorithm should ensure the same transmission quality while UHD produces three times more data than HD, and under the same transmission bandwidth, Try to maintain the same transmission time as HD. This paper analyzes the original video format of the current film industry and the H.264 video format used in the current mainstream high-definition movies. This paper introduces the development process of video compression technology, compares the advantages and disadvantages of H.265 standard compared with other video compression standards, and explains the necessity of adopting H.265 in principle. In the third chapter, the mainstream video compression quality evaluation technology scheme is compared. The fourth chapter, combined with the requirements of the company in video compression, determine the use of video coding methods, and design a hardware player to meet the requirements. In the fifth chapter, the basic functional requirements of the software are defined, and the coding and decoding software needed by the software outsourcing team is introduced. In the sixth chapter, the hardware and software designed in Chapter 4 and 5 are tested. After modifying a series of BUG, the experiment shows that the scheme involved is obviously superior to the current mainstream H.264 compression mode. The image quality is significantly higher than H.264 and mainstream H.265 4K 420 8 bit.. Meet the initial needs of the company's projects.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN919.81
【引证文献】
相关期刊论文 前1条
1 覃晴;陈军;刘戈三;;浅谈电影存档数字母版的图像技术指标[J];现代电影技术;2017年12期
，本文编号：2495579
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