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Camera definition SFR measurement method based on LabVIEW

A measurement method and technology of sharpness, applied in the field of image processing, can solve the problems of poor compatibility and flexibility, low efficiency, long time consumption, etc., and achieve the effect of improving compatibility and flexibility

Pending Publication Date: 2021-02-19
HUIZHOU DESAY SV AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method for measuring camera sharpness SFR based on LabVIEW, which solves the technical problems of low efficiency, time-consuming, poor compatibility and flexibility of existing camera sharpness measurement methods

Method used

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  • Camera definition SFR measurement method based on LabVIEW
  • Camera definition SFR measurement method based on LabVIEW
  • Camera definition SFR measurement method based on LabVIEW

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Embodiment Construction

[0055]The embodiment of the present invention will be explained in detail below in conjunction with the accompanying drawings. The examples given are only for the purpose of illustration, and cannot be interpreted as limiting the present invention. The accompanying drawings are only for reference and description, and do not constitute the scope of patent protection of the present invention. limitations, since many changes may be made in the invention without departing from the spirit and scope of the invention.

[0056] A kind of measurement method based on the camera definition SFR of LabVIEW that the embodiment of the present invention provides, such as figure 1 As shown, in this embodiment, steps S1-S4 are included:

[0057] S1. Identify the read image to be tested according to the preset rules, and obtain the corresponding pre-selected image, see figure 2 , including steps S11-S12:

[0058] S11. Read the image to be tested, and identify all edge regions in the image to ...

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Abstract

The invention relates to the technical field of image processing, and provides a camera definition SFR measurement method based on LabVIEW, and the method comprises the steps of setting a preset rule,and automatically searching all pre-selected images from a to-be-measured image when the to-be-measured image is obtained; calculating the edge contrast of the pre-selected image, and quickly judgingwhether the pre-selected image is an ROI image or not according to the digitalized data of the edge contrast, thereby automatically screening out the ROI image in the to-be-detected image; and on thebasis of LabVIEW graphical programming, performing secondary development and integrated use according to different devices, so that the compatibility and flexibility of the algorithm are improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for measuring camera sharpness SFR based on LabVIEW. Background technique [0002] With the continuous development of automotive electronics technology and the gradual development and application of ADAS intelligent driving, more and more sensors are used in cars. The main sensors include ultrasonic radar, millimeter wave radar, camera, etc. As the main sensor used, the imaging clarity of the camera is one of the very important indicators. [0003] With the continuous development of technology, the method of measuring the sharpness of the camera has been improved to: detect the sharpness by testing the MTF (modulation transfer function) of the test equipment. Among them, the equipment for measuring MTF first needs a luminous body, which is imaged by a camera, and then an appropriate image acquisition card is selected to collect the image, and the image is trans...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/13G06K9/32G06F17/14G06N3/04
CPCG06T7/0002G06T7/13G06F17/14G06T2207/10004G06T2207/20084G06T2207/20104G06V10/25G06N3/045
Inventor 刘贝欧阳鹏
Owner HUIZHOU DESAY SV AUTOMOTIVE