CONVERSION OPERATIONS IN SCALABLE VIDEO ENCODING A

专利名称：CONVERSION OPERATIONS IN SCALABLE

VIDEO ENCODING AND DECODING

发明人：SUN, SHIJUN,REGUNATHAN, SHANKAR,TU,

CHENGJIE,LIN, CHIH-LUNG

申请号：EP09811934申请日：20090814公开号：EP2316224A4公开日：20150909

摘要：Techniques and tools for conversion operations between modules in a scalablevideo encoding tool or scalable video decoding tool are described. For example, givenreconstructed base layer video in a low resolution format (e.g., 4:2:0 video with 8 bits persample) an encoding tool and decoding tool adaptively filter the reconstructed baselayer video and upsample its sample values to a higher sample depth (e.g., 10 bits persample). The tools also adaptively scale chroma samples to a higher chroma samplingrate (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. Theencoding tool also remaps sample values of the inter-layer residual video to adjustdynamic range before encoding, and the decoding tool performs inverse remapping afterdecoding.

申请人：MICROSOFT TECHNOLOGY LICENSING, LLC

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