Invention Grant
US08693538B2 System and method for providing error resilience, random access and rate control in scalable video communications
有权
用于在可伸缩视频通信中提供错误弹性,随机访问和速率控制的系统和方法
- Patent Title: System and method for providing error resilience, random access and rate control in scalable video communications
- Patent Title (中): 用于在可伸缩视频通信中提供错误弹性,随机访问和速率控制的系统和方法
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Application No.: US11682263Application Date: 2007-03-05
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Publication No.: US08693538B2Publication Date: 2014-04-08
- Inventor: Alexandros Eleftheriadis , Danny Hong , Ofer Shapiro , Thomas Wiegand
- Applicant: Alexandros Eleftheriadis , Danny Hong , Ofer Shapiro , Thomas Wiegand
- Applicant Address: US NJ Hackensack
- Assignee: Vidyo, Inc.
- Current Assignee: Vidyo, Inc.
- Current Assignee Address: US NJ Hackensack
- Agency: Baker Botts L.L.P.
- Main IPC: H04B1/66
- IPC: H04B1/66

Abstract:
Systems and methods for error resilient transmission, rate control, and random access in video communication systems that use scalable video coding are provided. Error resilience is obtained by using information from low resolution layers to conceal or compensate loss of high resolution layer information. The same mechanism is used for rate control by selectively eliminating high resolution layer information from transmitted signals, which elimination can be compensated at the receiver using information from low resolution layers. Further, random access or switching between low and high resolutions is also achieved by using information from low resolution layers to compensate for high resolution spatial layer packets that may have not been received prior to the switching time.
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