A quick reading module for searching block in the video encoder

Abstract

This invention relates to one index block reading module in the visual coder in signal process visual frequency coding field, wherein, the module comprises the following parts: reference image data memory, two dimension index block registers array, wherein, the reference image data memory output end is connected to the upper register input end and down register input end on the array; the two dimension index black register array is composed of (m+1)*n unit register and one of three selector.

Description

Technical field [0001] The invention belongs to the field of video coding in signal processing, and relates to a fast search block reading module in a video encoder Background technique [0002] Video refers to a series consisting of a series of time-related images, each of which is called a "frame" (in this application, both frame mode and field mode images are uniformly applicable, so no distinction is made between frames and fields. Unified called frame), each frame can be divided into several "blocks", usually blocks are square or rectangular, video coding is based on the block as the basic unit for coding, the commonly used blocks in video coding are 16×16, 8×16 , 16×8, 8×8, 4×4, etc., are all based on pixels; “pixel” refers to the points that make up an image, which is the smallest unit that makes up an image. [0003] The purpose of video encoding is to compress the video data to facilitate storage and transmission, and the video encoder is a device with this function. A g...

AI Technical Summary

Problems solved by technology

This kind of cost, when the search range is large and the block size is relatively small, the proportion of the total time is not high, but once the block size increases and the search range decreases, the proportion of this additional time overhead will increase

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