Two-way mass center tracking imaging method and device

Abstract

The invention discloses a dual-line center-of-mass following imaging method. When in treatment of a whole spot image, gray values of the current two lines of pixels are simultaneously read at each time, the gray values of the two lines of the pixels are simultaneously compared with a preset threshold, when at least one of the two lines of the pixels is larger than the threshold, the dual-line data labeling, the dual-line data merging and the dual-line data accumulation processes are implemented till the completion of the treatment of the whole spot image, and the obtained coordinates of the center-of-mass of the spot image are output. The invention further simultaneously discloses a dual-line center-of-mass following imaging device, and the use of the method and the device can improve the parallel treatment ability of data and the treatment speed of the data.

Description

technical field

[0001] The invention relates to spot image processing technology, in particular to a two-way centroid-following imaging method and device. Background technique

[0002] The spot image is common image information in machine vision and pattern recognition, which is collected by an image sensor, and the spot centroid is the feature of the spot image. Spot centroid is widely used in target tracking in machine vision, feature point extraction in high-precision three-dimensional measurement in visual inspection, positioning of laser spot center in deep-space laser communication for space applications, star point positioning of star sensors in attitude measurement components, Sun spot positioning for sun sensors.

[0003] In the prior art, generally two types of methods can be used to locate the centroid of the light spot: a grayscale-based positioning method and an edge-based positioning method. Among them, the grayscale-based positioning method generally uses th...

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