An Off-Chip Buffer Compression System for UHD Frame Rate Up-conversion

Abstract

The invention provides an out-chip buffer compression system for superhigh-definition frame rate up-conversion, and the system comprises a compression module and a decompression module. The compression module compresses to-be-compressed video frame data from video input and a superhigh-definition frame rate up-conversion processing core, forming a compressed code stream, and enables the compressed code stream to be written into an out-chip buffer; a decompression module which requests the compressed code stream for the out-chip buffer, and receives the compressed code stream from the out-chip buffer. The decompression module carries out the real-time decoding of the compressed code stream, forms a decompressed pixel block, and enables the decompressed pixel block to be outputted to the superhigh-definition frame rate up-conversion processing core and an output display module. The method can greatly reduce the bandwidth of the out-chip buffer, improves the data throughput rate, and reduces the power consumption of an uperhigh-definition frame rate up-conversion system.

Description

technical field [0001] The invention relates to the field of video processing, in particular to an off-chip buffer compression system for ultra-high-definition frame rate up-conversion. Background technique [0002] In recent years, people's subjective demand for high-quality visual enjoyment and the objective conditions of the rapid development of semiconductor technology have jointly promoted the vigorous development of the UHD TV industry. However, due to the limitation of the bandwidth of the current transmission system, UHD TV programs can only be transmitted at a lower frame rate. At the same time, the refresh rate of large-screen display devices has been greatly improved, and the video frame rate is lower than the screen refresh rate. This mismatch directly leads to image smearing, pauses, blurring, etc., and the display effect is not good. As an important video post-processing method, the video frame rate up-conversion technology can effectively increase the frame r...

AI Technical Summary

Problems solved by technology

[0004] However, at the current technological level, the bandwidth of storage access is difficult to meet such high read and write throughput requirements, and the off-chip cache bandwidth becomes the bottleneck restricting system performance

At the same time, the off-chip storage data access with such a high read and write throughput rate also greatly improves the power consumption of the ultra-high-definition video frame rate up-conversion IP core

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