Invention Grant
- Patent Title: Method and apparatus for automatic visual artifact analysis and artifact reduction
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Application No.: US12312646Application Date: 2007-12-05
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Publication No.: US09602838B2Publication Date: 2017-03-21
- Inventor: Gokce Dane , Wuttipong Kumwilaisak , Cristina Gomila
- Applicant: Gokce Dane , Wuttipong Kumwilaisak , Cristina Gomila
- Applicant Address: FR Issy les moulineaux
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Issy les moulineaux
- Agent Brian J. Dorini; Xiaoan Lu
- International Application: PCT/US2007/024868 WO 20071205
- International Announcement: WO2008/088482 WO 20080724
- Main IPC: H04N19/124
- IPC: H04N19/124 ; H04N19/154 ; H04N19/194 ; H04N19/86 ; H04N19/15 ; H04N19/61

Abstract:
A system and method for correcting artifacts present in video frames is disclosed. The system includes a decision module (110) and an artifact correction unit (120). The system receives artifact metrics (112) and artifact maps (122) corresponding to artifacts present in video frames and prioritizes the video frames to be corrected by considering the type and severity of the artifacts and the content of the video frames (113). Subsequent to prioritizing the video frames, the system corrects artifacts of selected frames by adjusting compressed domain parameters (126), such as quantization parameters and mode decisions. An encoder (130) compresses the video frames according to the adjusted compressed domain parameter to automatically provide a video stream with a lower incidence and severity of artifacts.
Public/Granted literature
- US20110075729A1 METHOD AND APPARATUS FOR AUTOMATIC VISUAL ARTIFACT ANALYSIS AND ARTIFACT REDUCTION Public/Granted day:2011-03-31
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