Invention Grant
US09277210B2 Method and apparatus for partial coefficient decoding and spatial scaling
有权
用于部分系数解码和空间缩放的方法和装置
- Patent Title: Method and apparatus for partial coefficient decoding and spatial scaling
- Patent Title (中): 用于部分系数解码和空间缩放的方法和装置
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Application No.: US12998899Application Date: 2009-12-08
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Publication No.: US09277210B2Publication Date: 2016-03-01
- Inventor: Jiheng Yang , Li Hua Zhu , Hui Zhang
- Applicant: Jiheng Yang , Li Hua Zhu , Hui Zhang
- Applicant Address: FR
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR
- Agency: Jack Schwartz & Associates, PLLC
- Priority: EP08305983 20081219
- International Application: PCT/EP2009/066589 WO 20091208
- International Announcement: WO2010/069815 WO 20100624
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N19/00 ; H04N7/01 ; H04N21/2343 ; H04N21/4363 ; H04N19/48 ; H04N7/015

Abstract:
Video equipment, e.g. for TV producers studios, need to display multiple channels of bit-streams simultaneously. Decoding multiple streams of high bit-rate videos is extremely computational intensive. An improved method for browsing an encoded frequency domain video sequence comprises steps of determining a spatial and/or temporal reduction level for browsing a video sequence, determining according to the determined reduction level frames, fields or parts of blocks or macroblocks to be skipped for decoding, and decoding the remaining data to a video with lower spatial and/or temporal resolution. The reduction may include adaptive partial coefficient decoding, motion vector truncation and/or simplified deblocking filtering. The reduction of spatial resolution is advantageously performed in the frequency domain, so that the inverse quantization process and the iDCT processes require less computing.
Public/Granted literature
- US20110249746A1 METHOD FOR BROWSING VIDEO STREAMS Public/Granted day:2011-10-13
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