Invention Grant
US09503732B2 Re-sampling with phase offset adjustment for luma and chroma to select filters in scalable video coding 有权
通过相位偏移调整对亮度和色度进行重新采样,以选择可扩展视频编码中的滤波器

Re-sampling with phase offset adjustment for luma and chroma to select filters in scalable video coding
Abstract:
A sampling filter process is provided for scalable video coding. The process provides for re-sampling using video data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system using adaptive phase shifting to improve quality in Scalable High efficiency Video Coding (SHVC). In order to compensate for phase offsets introduced by downsampling an appropriate phase offset adjustment is made for upsampling in SHVC with an appropriate offset included for proper luma/chroma color space positions. In one approach the luma/chroma phase offset is specified and a filter is selected to apply the appropriate phase change.
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