发明授权
- 专利标题: Methods and systems for detecting video artifacts
- 专利标题(中): 用于检测视频伪影的方法和系统
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申请号: US14604290申请日: 2015-01-23
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公开(公告)号: US09232118B1公开(公告)日: 2016-01-05
- 发明人: Advait Madhav Mogre , Bhupender Kumar , Shekhar Madnani
- 申请人: Interra Systems, Inc.
- 申请人地址: US CA Cupertino
- 专利权人: INTERRA SYSTEMS, INC
- 当前专利权人: INTERRA SYSTEMS, INC
- 当前专利权人地址: US CA Cupertino
- 代理机构: Balser & Grell IP Law
- 主分类号: H04N5/21
- IPC分类号: H04N5/21 ; H04N5/14
摘要:
A system and method for detecting artifacts in a video having a sequence of pictures is described. The method comprises the steps of calculating a motion vector cost and a variable threshold for each of the pictures. In case, the motion vector cost for the picture is greater than the variable threshold of the picture, then a first scene change profile and a second scene change profile for the picture is computed and analyzed for determining the character of the variation in the motion vector cost. An artifact metric for the picture is also calculated and the artifact metric for the picture is compared with a programmable artifact reporting threshold for ascertaining if an artifact is present in the video. The described approach is generic in nature and takes into account various exceptions that may be present within a picture that may be similar in character as an artifact.
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