Invention Grant
US07676096B2 Modular, low cost, memory efficient, input resolution independent, frame-synchronous, video compression system using multi stage wavelet analysis and temporal signature analysis with a highly optimized hardware implementation
有权
模块化,低成本,高效率,独立的输入分辨率,帧同步,视频压缩系统采用多阶段小波分析和时间签名分析,具有高度优化的硬件实现
- Patent Title: Modular, low cost, memory efficient, input resolution independent, frame-synchronous, video compression system using multi stage wavelet analysis and temporal signature analysis with a highly optimized hardware implementation
- Patent Title (中): 模块化,低成本,高效率,独立的输入分辨率,帧同步,视频压缩系统采用多阶段小波分析和时间签名分析,具有高度优化的硬件实现
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Application No.: US11178212Application Date: 2005-07-08
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Publication No.: US07676096B2Publication Date: 2010-03-09
- Inventor: B. Anil Kumar , Frank Palita , Paul Lessard , Victor Ramamoorthy
- Applicant: B. Anil Kumar , Frank Palita , Paul Lessard , Victor Ramamoorthy
- Applicant Address: US CA Palo Alto
- Assignee: QformX
- Current Assignee: QformX
- Current Assignee Address: US CA Palo Alto
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: G06K9/34
- IPC: G06K9/34 ; G06K9/36 ; G06K9/46 ; H04N7/12 ; H04N11/02 ; H04N11/04

Abstract:
The present invention provides a method of and apparatus for operating upon a sequence of video frames by splitting each frame into components, and each component into a plurality of columns. The columns are operated upon in a manner that reduced edge artifacts and compresses the columns by reducing precision in certain higher frequency bands more than other lower frequency bands. The thus operated upon frames can be transmitted, received, and processed at a receiver with low latency and very low memory storage The invention further discusses a novel way of temporal compression using signatures of the sub bands generated for spatial compression. Spatial analysis using wavelets further enables the decoder to format and scale the decoded output to suit an arbitrary display screen. The method provides a practical solution to the problem of compressing, storing, or transmitting of video with ever-increasing spatial and temporal resolutions.
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