[특허]System and method for skip coding during video conferencing in a network environment

[미국특허] System and method for skip coding during video conferencing in a network environment 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04N-007/12
출원번호	US-0877833 (2010-09-08)
등록번호	US-8599934 (2013-12-03)
발명자 / 주소	Tian, Dihong Friel, Joseph T. Weir, Andrew P.
출원인 / 주소	Cisco Technology, Inc.
대리인 / 주소	Patent Capital Group
인용정보	피인용 횟수 : 1 인용 특허 : 238

초록 ▼

A method is provided in one example and includes receiving an input video, and identifying values of pixels from noise associated with a current video image within the video input. The method also includes creating a skip-reference video image associated with the identified pixel values, and comparing a portion of the current video image to the skip-reference video image. The method also includes determining a macroblock associated with the current video image to be skipped before an encoding operation occurs.

대표청구항 ▼

1. A method, comprising: receiving an input video, wherein data from the input video is analyzed in a plurality of multi-stage histograms to represent variation statistics;identifying values of pixels from noise associated with a current video image within the video input;creating a skip-reference video image associated with the identified pixel values;comparing a portion of the current video image to the skip-reference video image; anddetermining a macroblock associated with the current video image to be skipped before an encoding operation occurs. 2. The method of claim 1, further comprising: encoding non-skipped macroblocks associated with the current video image based on a noise level being above a designated noise threshold. 3. The method of claim 1, wherein the plurality of multi-stage histograms represent variation statistics between a current input video frame and a temporally preceding video frame. 4. The method of claim 3, wherein each of the multi-stage histograms include differing levels of luminance associated with the input video, and wherein if a selected one of the histograms reaches a certain level of luminance, a corresponding pixel of an associated video image is marked to be registered to a reference buffer. 5. The method of claim 1, further comprising: aggregating non-skipped macroblocks and the skipped macroblock associated with the current video image; andcommunicating the macroblocks over a network connection to an endpoint associated with a video conference. 6. The method of claim 1, wherein comparing the portion of the current video image to the skip reference video image is performed in a single reference buffer. 7. The method of claim 1, wherein comparing the portion of the current video image to the skip reference video image is performed in multiple reference buffers. 8. Logic encoded in one or more non-transitory media that includes code for execution and when executed by a processor operable to perform operations comprising: receiving an input video, wherein data from the input video is analyzed in a plurality of multi-stage histograms to represent variation statistics;identifying values of pixels from noise associated with a current video image within the video input;creating a skip-reference video image associated with the identified pixel values;comparing a portion of the current video image to the skip-reference video image; anddetermining a macroblock associated with the current video image to be skipped before an encoding operation occurs. 9. The logic of claim 8, the operations further comprising: encoding non-skipped macroblocks associated with the current video image based on a noise level being above a designated noise threshold. 10. The logic of claim 8, wherein the plurality of multi-stage histograms represent variation statistics between a current input video frame and a temporally preceding video frame. 11. The logic of claim 10, wherein each of the multi-stage histograms include differing levels of luminance within the input video, and wherein if a selected one of the histograms reaches a certain level of luminance, a corresponding pixel of an associated video image is marked to be registered to a reference buffer. 12. The logic of claim 8, the operations further comprising: aggregating non-skipped macroblocks and the skipped macroblock associated with the current video image; andcommunicating the macroblocks over a network connection to an endpoint associated with a video conference. 13. The logic of claim 8, wherein comparing the portion of the current video image to the skip reference video image is performed in a single reference buffer. 14. The logic of claim 8, wherein comparing the portion of the current video image to the skip reference video image is performed in multiple reference buffers. 15. An apparatus, comprising: a memory element configured to store code;a processor operable to execute instructions associated with the code; anda skip coding module configured to interface with the memory element and the processor such that the apparatus can: receive an input video, wherein data from the input video is analyzed in a plurality of multi-stage histograms to represent variation statistics; identify values of pixels from noise associated with a current video image within the video input;create a skip-reference video image associated with the identified pixel values;compare a portion of the current video image to the skip-reference video image; anddetermine a macroblock associated with the current video image to be skipped before an encoding operation occurs. 16. The apparatus of claim 15, wherein the apparatus is further configured to: encode non-skipped macroblocks associated with the current video image based on a noise level being above a designated noise threshold. 17. The apparatus of claim 15, wherein the plurality of multi-stage histograms represent variation statistics between a current input video frame and a temporally preceding video frame. 18. The apparatus of claim 17, wherein each of the multi-stage histograms include differing levels of luminance within the input video, and wherein if a selected one of the histograms reaches a certain level of luminance, a corresponding pixel of an associated video image is marked to be registered to a reference buffer. 19. The apparatus of claim 15, wherein the apparatus is further configured to: aggregate non-skipped macroblocks and the skipped macroblock associated with the current video image; andcommunicate the macroblocks over a network connection to an endpoint associated with a video conference. 20. The apparatus of claim 15, wherein the comparison of the portion of the current video image to the skip reference video image is performed in a single reference buffer.

이 특허에 인용된 특허 (238) 인용/피인용 타임라인 분석

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A	생활필수품
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[미국특허] System and method for skip coding during video conferencing in a network environment 원문보기

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