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An integer search method and device

A search method and integer technology, applied in the field of communication, can solve problems such as excessive use of registers, and achieve the effects of ensuring processing time, improving accuracy, and improving utilization

Active Publication Date: 2016-06-15
HUAWEI CLOUD COMPUTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If each pixel is 8bit, the register occupied by the reference data is (64+N)*64*8bit, which requires tens of thousands of registers to realize, resulting in excessive use of registers

Method used

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Embodiment Construction

[0060] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners.

[0061] Before introducing the technical solutions of the present invention, the application scenarios of the present invention are first explained.

[0062] Video signal transmission is the core of multimedia information transmission, see image 3 As shown in the schematic diagram, the transmission process of the video signal can be roughly reflected as follows:

[0063] Step 101, original video capture, that is, video acquisition, this step is mainly realized by image acquisition devices such as cameras;

[0064] Step 102, in order to save the code stream of the transmitted video, encode and compress the captured video signal through a video encoder to obtain a compressed code stream;

[0065] Step 103, trans...

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Abstract

The invention discloses a method and device for searching an integer. The method is applied to video coding, and comprises the steps of reading a coded reference frame, selecting a searching starting point for a block to be coded in the reference frame, determining a searching window according to the searching starting point, searching the matching block of the block to be coded in the searching window at the interval of at least one coding period, and saving a searching result, wherein the searching result comprises the position where the matching block is located in the reference frame and the matching degree of the block to be coded and the matching block. Searching starting point selecting and matching block searching respectively occupy a complete coding period. Through the parallelly staggered processing mode, the accuracy of determining the searching starting point and searching the matching block can be improved, and the video coding effect is further improved. In addition, the processing time of the process of searching the matching block is fully guaranteed, the utilization rate of logic resources can also be effectively improved, and the cost of the logic resources joining the searching process is lowered.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an integer search method and device. Background technique [0002] Video signals contain a huge amount of information. In order to realize the fast transmission of video signals, efficient video compression coding technology is very important. Inter-frame predictive coding is a widely used video coding method. Its main principle is to divide the moving image (that is, the current frame image) into several blocks or macroblocks, and try to search for each block in the adjacent frame image (also known as the macroblock). That is, the position in the reference frame image) to obtain the relative offset between the two in the spatial position, and use the offset to perform video encoding. [0003] Inter-frame predictive coding can be roughly divided into three processes: integer search, decimal search, and motion compensation. Integer search is the basis of the entire coding ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/176H04N19/70H04N19/463H04N19/51H04N19/52
Inventor 高剑周峰马永兵
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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