Invention Grant
- Patent Title: Method and apparatus for determining the severity of corruption in a picture
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Application No.: US14981835Application Date: 2015-12-28
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Publication No.: US10334276B2Publication Date: 2019-06-25
- Inventor: Ihab Amer , Gabor Sines , Khaled Mammou , Haibo Liu , Edward Harold , Lei Zhang , Fabio Gulino , Ehsan Mirhadi , Ho Hin Lau
- Applicant: ATI TECHNOLOGIES ULC
- Applicant Address: CA Markham
- Assignee: ATI Technologies ULC
- Current Assignee: ATI Technologies ULC
- Current Assignee Address: CA Markham
- Main IPC: H04N19/44
- IPC: H04N19/44 ; H04N19/65 ; H04N21/44 ; H04N21/442 ; H04N21/6375

Abstract:
An encoder encodes pixels representative of a picture in a multimedia stream, generates a first approximate signature based on approximate values of pixels in a reconstructed copy of the picture, and transmits the encoded pixels and the first approximate signature. A decoder receives a first packet including the encoded pixels and the first approximate signature, decodes the encoded pixels, and transmits a first signal in response to comparing the first approximate signature and a second approximate signature generated based on approximate values of the decoded pixels. If a corrupted packet is detected, the multimedia application requests an intra-coded picture in response to the first approximate signature differing from the second approximate signature. The second signal instructs the decoder to bypass requesting an intra-coded picture and to continue decoding received packets in response to the first approximate signature being equal to the second approximate signature.
Public/Granted literature
- US20170188051A1 METHOD AND APPARATUS FOR DETERMINING THE SEVERITY OF CORRUPTION IN A PICTURE Public/Granted day:2017-06-29
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