会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明公开
    • CONVERSION OPERATIONS IN SCALABLE VIDEO ENCODING AND DECODING
    • UMSETZUNG VON操作BEI DER SKALIERBAREN VIDEOCODIERUNG UND DECODIERUNG
    • EP2316224A4
    • 2015-09-09
    • EP09811934
    • 2009-08-14
    • MICROSOFT TECHNOLOGY LICENSING LLC
    • SUN SHIJUNREGUNATHAN SHANKARTU CHENGJIELIN CHIH-LUNG
    • H04N19/149H04N7/24H04N19/117H04N19/186H04N19/187H04N19/33H04N19/40H04N19/59H04N19/86
    • H04N19/59H04N19/117H04N19/149H04N19/186H04N19/187H04N19/33H04N19/40H04N19/86
    • Techniques and tools for conversion operations between modules in a scalable video encoding tool or scalable video decoding tool are described. For example, given reconstructed base layer video in a low resolution format (e.g., 4:2:0 video with 8 bits per sample) an encoding tool and decoding tool adaptively filter the reconstructed base layer video and upsample its sample values to a higher sample depth (e.g., 10 bits per sample). The tools also adaptively scale chroma samples to a higher chroma sampling rate (e.g., 4:2:2). The adaptive filtering and chroma scaling help reduce energy in inter-layer residual video by making the reconstructed base layer video closer to input video, which typically makes compression of the inter-layer residual video more efficient. The encoding tool also remaps sample values of the inter-layer residual video to adjust dynamic range before encoding, and the decoding tool performs inverse remapping after decoding.
    • 描述了可扩展视频编码工具或可扩展视频解码工具中的模块之间的转换操作的技术和工具。 例如,给定以低分辨率格式的重建基层视频(例如,每个样本具有8位的4:2:0视频),编码工具和解码工具自适应地过滤重构的基层视频并将其样本值上样到较高的样本 深度(例如,每个样本10位)。 这些工具还可以自适应地将色度样本缩放到较高的色度采样率(例如4:2:2)。 自适应滤波和色度缩放有助于通过使重建的基本层视频更接近输入视频来减少层间残留视频中的能量,这通常使得层间残留视频的压缩更有效。 编码工具还重新编码层间残差视频的采样值,以便在编码之前调整动态范围,解码工具在解码后执行反向重映射。