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Metaphorically, closing the loop means that the person who issued the instruction gets a report on the outcome. The instruction goes out, things get done, and a report comes back to the person who issued the instruction. As an aside: the loop metaphor is also used in the context of recycling.
Artificial intelligence based in-loop enhancement method for ultra-low bitrate video coding
The application discloses an in-loop enhancement method for super-low code rate video coding based on artificial intelligence, and relates to the technical field of artificial intelligence, which comprises the following steps: step 1: obtaining a reconstructed frame generated by a current decoder as a visual input and a current code rate indicator as a control input; generating an initial pulse event stream containing event timestamps and polarity and a pulse timing consistency graph thereof; step 2: under the constraint of the pulse timing consistency graph, performing pulse consistency re-estimation and asynchronous residual back-annotation based on interleaved phase cross-checking; step 3: under the control of in-loop closed-loop and code rate collaborative regulation, generating a pulse reconstruction enhancement frame by using the enhanced pulse event stream, and replacing a reference frame with the pulse reconstruction enhancement frame. The application can significantly reduce the cross-frame distortion accumulation risk, improve the subjective viewing quality and the reliability of the reference frame, and has practical application value in low-bandwidth transmission and limited storage scenarios.
Owner:GUOSEN RUIAN (BEIJING) INFORMATION TECHNOLOGY CO LTD