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Method and system for judging whether a line array camera acquires pictures at a uniform speed

A line-scan camera and image technology, applied in image analysis, image enhancement, image data processing, etc., can solve the problems of line-scan camera quantification and judgment, human eyes are difficult to give accurate conclusions, etc., and achieve the effect of simple operation

Active Publication Date: 2022-05-03
BEIJING LUSTER LIGHTTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in actual use, there is no quantitative judgment on whether the line-scan camera captures pictures at a uniform speed. Unless there is a large speed difference, it is difficult for the human eye to give an accurate conclusion.

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  • Method and system for judging whether a line array camera acquires pictures at a uniform speed
  • Method and system for judging whether a line array camera acquires pictures at a uniform speed

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Embodiment Construction

[0064] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0065] see figure 1, is a flow chart of a method for judging whether a line scan camera acquires images at a uniform speed provided in an embodiment of the present application.

[0066] Such as figure 1 As shown, the method for judging whether the line scan camera provided by the embodiment of the present application is to acquire pictures ...

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Abstract

The present application discloses a method and system for judging whether a line array camera acquires images at a uniform speed. The method includes: aligning and fixing the checkerboard target image on the object to be measured, setting the line frequency of the line array camera and the moving speed of the object ; collect the checkerboard image taken by the line array camera; correct the checkerboard image for tilt; detect the length of the vertical side of the checkerboard image after correction; calculate the fluctuation degree of the vertical side length of the checkerboard; picture. The judging method provided by this application uses the checkerboard as the target to collect pictures, and judges whether the line array camera takes pictures at a uniform speed by calculating and analyzing whether the vertical lengths of all the checkerboards in the captured image change. This is not only easy to operate, but also objective Accurate judgment.

Description

technical field [0001] The present application relates to the technical field of line-scan cameras, and in particular to a method and system for judging whether a line-scan camera acquires pictures at a uniform speed. Background technique [0002] A line array camera is a camera using a line array sensor, which collects one line of images each time, and the captured image is in the shape of a "line" with a length of several k. To stitch several lines into one image, the subject (or line) must be required Array camera) moves along the height direction of the image and has high resolution. It is often used in the detection field where the measured field of view is slender and requires a large field of view or extremely high precision. [0003] Due to its characteristics, the line array camera must require relative motion between the line array camera and the object in order to continuously capture images. Usually, the line array camera is fixed and the object moves. When the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T5/00
CPCG06T7/0002G06T2207/30168G06T5/80
Inventor 郭慧姚毅
Owner BEIJING LUSTER LIGHTTECH
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