nba超清画质媒体处理技术深度的相关内容

文章 2023-05-23 来自：开发者社区

超越感官，沉浸赛场——大型体育赛事云上实战精选-第二章 NBA 总决赛：窄带高清的视觉渲染力 NBA赛事超清画质的背后：「窄带高清2.0」技术深度解读（上）

在2022年6月的NBA总决赛中，百视TV作为全网唯一采用“主播陪你看NBA”模式的直播平台，以“陪看型”赛事解说来面对内容差异化竞争。与此同时，百视TV还运用了“窄带高清2.0”直播转码技术，为观众在赛事画面质量上打造更进一步的体验提升。简单来说，“窄带高清”是一套以“主观体验最好”为优化目标的视频编码技术，让我们看一张对比图，感受一下画质提升效果：上图为主....

文章 2023-05-23 来自：开发者社区

超越感官，沉浸赛场——大型体育赛事云上实战精选-第二章 NBA 总决赛：窄带高清的视觉渲染力 NBA赛事超清画质的背后：「窄带高清2.0」技术深度解读（中）

4. 关键技术解析 1) 视频理解 • 极致修复生成前面已提到我们输入源本身画质不高，同时还经过了多次转码，因此第一个处理步骤为修复生成，其主要目的是修复视频中的多种瑕疵，比如压缩块效应、压缩伪影、边缘毛刺、去交错后残留噪声、模糊等，同时生成一些因压缩丢失的细节纹理。学术界有不少利用深度学习去专门做去压缩失真、专门做去模糊的研究工作。比如早期做图片去压....

文章 2023-05-23 来自：开发者社区

超越感官，沉浸赛场——大型体育赛事云上实战精选-第二章 NBA 总决赛：窄带高清的视觉渲染力 NBA赛事超清画质的背后：「窄带高清2.0」技术深度解读（下）

• ROI 前面所述的JND算法通过对视觉冗余的挖掘能节省30%以上的码率，但这种码率节省是完全基于low level统计信息来获得的，并没有考虑high level语义信息。针对体育赛事场景中观众们很关注的人物近景特写镜头，我们希望能够让人物特写更清晰地呈现在观众面前。除了通过极致修复生成获得清晰人物特写外，还要通过某种方法使得编码后仍然保持清晰。在此，需要用....

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更新时间 2023-05-26 11:08:47

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