Motion compensation reference block data reading device and method for embedded video decoding

Abstract

The invention discloses a motion compensation reference block data reading device and a motion compensation reference block data reading method for embedded video decoding. The device and the method are used for reading the reference block data of a current decoding macro block from an off-chip reference frame buffer into an on-chip memory space in the embedded video decoding. In the device and the method, inter-frame macro blocks are classified according to types and motion vectors of the macro blocks, different reference block data ranges are determined respectively, and the reference block data is read into the on-chip memory space once. Simultaneously, boundary extension is performed on data out of a reference frame range, so the reference block data is not required to be judged whether to exceed a reference frame boundary or not in subsequent sub-pixel interpolation. By the device and the method, on-chip and off-chip data interaction times can be remarkably decreased, the overlapped part of data of adjacent 4*4 reference blocks can be reduced, and an on-chip and off-chip interactive data volume can be decreased.

Description

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AI Technical Summary

Benefits of technology

This technology helps improve performance when processing video images captured by cameras such as surveillance systems. By calculating how many times videos are taken per second (the average) instead of trying to capture every detail within them, this improves efficiency while also minimizing storage space needed. Additionally, if there're any changes made after capturing an image, these techniques help identify which parts have changed more frequently than others without reconstructing everything again. Overall, this technology makes better quality monitoring capabilities possible even beyond what was previously feasible due to limitations associated with previous methods like storing all pixels twice before performing analysis.

Problems solved by technology

The technical problem addressed by this patents relates to optimizing image encoding techniques while reducing unnecessary workload during decoded images due to their high computational complexity.

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