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N neighborhood accumulation/OR operation device based on two-dimensional assembly line

A computing device and pipeline technology, which can be used in addition/subtraction computing operations, computing operation devices, machine execution devices, etc., and can solve problems such as waste of computing resources.

Active Publication Date: 2021-08-20
XIAN MICROELECTRONICS TECH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantage of waste of computing resources in the calculation of pixels in the neighborhood, and to provide a two-dimensional pipeline-based N-neighborhood accumulation / or computing device

Method used

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  • N neighborhood accumulation/OR operation device based on two-dimensional assembly line
  • N neighborhood accumulation/OR operation device based on two-dimensional assembly line
  • N neighborhood accumulation/OR operation device based on two-dimensional assembly line

Examples

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Embodiment

[0085] The present invention has been applied in the CE4 relay star camera controller to realize the calculation of the 5×5 neighborhood or in the star point detection algorithm. The star point detection algorithm compares the gray level changes of the pixels of the two photos taken by the camera before and after. , realizing the automatic detection and sampling of meteorite impact events on the back of the moon. By adopting the invention, the calculation time of the star point detection algorithm is shorter than the interval of taking pictures by the camera, and the uninterrupted detection of the meteorite impact event on the back of the moon is realized.

[0086] The invention has been applied to a new type of cruise missile solving computer, and is used to realize the calculation of the reference image accumulation sum / square accumulation sum in the mean value normalization cross-correlation algorithm. Compared with the method of the previous generation product DSP calculat...

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Abstract

The invention discloses an N neighborhood accumulation / OR operation device based on a two-dimensional pipeline, and belongs to the field of digital circuits. The invention discloses an N neighborhood accumulation / OR operation device based on a two-dimensional pipeline. The device comprises a row accumulation sum module and an accumulation sum pipeline, the line accumulation sum module is used for performing accumulation operation on the input data, performing accumulation calculation on M adjacent data of each line of images in sequence, and generating (X-M + 1) line accumulation results for each line of data; the accumulation sum assembly line is used for accumulation among multiple rows of data; according to the method, pipeline or / accumulation calculation can be carried out on the pixels in the neighborhood in the row dimension and the column dimension, the resource overhead is effectively reduced, the calculation efficiency is improved, and the calculation scale can be configured to adapt to different neighborhoods. The N neighborhood or / accumulation operation device provided by the invention is simple in structure and flexible in configuration, and can effectively reduce the resource overhead and improve the calculation efficiency.

Description

technical field [0001] The invention belongs to the field of digital circuits, in particular to a two-dimensional pipeline-based N-neighborhood accumulation / or computing device. Background technique [0002] In the image algorithm, the N neighborhood refers to a pixel point and the set of pixels adjacent to this pixel point N points. In many image solving algorithms, it includes the addition of pixels in the neighborhood of a certain pixel point. The operation of operation / or operation, such as in the de-mean normalized cross-correlation algorithm, includes the accumulation and / square accumulation of all pixels in the N neighborhood (N is the size of the template image) of each pixel in the reference image The operation, in the star point detection algorithm, includes the operation of ORing after binarizing all pixels in the N neighborhood of each pixel in the image. Generally speaking, there are two methods to deal with this kind of operation: Serial computing: the data is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06G7/14G06F9/38
CPCG06G7/14G06F9/38Y02D10/00
Inventor 王硕杨靓贾可辉路海全杨阳
Owner XIAN MICROELECTRONICS TECH INST
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