Invention Grant
US07876833B2 Method and apparatus for adaptive up-scaling for spatially scalable coding
有权
用于空间可缩放编码的自适应上调的方法和装置
- Patent Title: Method and apparatus for adaptive up-scaling for spatially scalable coding
- Patent Title (中): 用于空间可缩放编码的自适应上调的方法和装置
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Application No.: US11139963Application Date: 2005-05-26
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Publication No.: US07876833B2Publication Date: 2011-01-25
- Inventor: Christopher Andrew Segall , Shaw-min Lei
- Applicant: Christopher Andrew Segall , Shaw-min Lei
- Applicant Address: US WA Camas
- Assignee: Sharp Laboratories of America, Inc.
- Current Assignee: Sharp Laboratories of America, Inc.
- Current Assignee Address: US WA Camas
- Agency: Stolowitz Ford Cowger LLP
- Main IPC: H04B1/66
- IPC: H04B1/66

Abstract:
Adaptive up-sample filtering is used to improve compression efficiency of spatially scalable coding systems by more effectively predicting the high-resolution (enhanced-layer) video (or image) from the low-resolution lower-layer video (or image). Different up-sample filters adaptive to local image properties are selectively used for different portions of a low resolution frame to generate a better up-sampled image. Selection between different up-sample filters is determined by a variety of different information available to both the encoder and decoder. In one embodiment, the up-sample filters are selected by the encoder and then explicitly identified to the decoder. Other techniques are then used to minimize the cost of transmitting the up-sample filter identifiers. In alternative embodiments, the encoder and decoder independently make up-sample filters selections.
Public/Granted literature
- US20060268991A1 Method and apparatus for adaptive up-scaling for spatially scalable coding Public/Granted day:2006-11-30
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