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A direct illumination system for machine vision

A lighting system and machine vision technology, applied in the field of lighting systems, can solve problems such as indistinguishable tongue coating areas, and achieve the effect of ensuring image analysis and diagnosis, avoiding reflections, and improving quality.

Inactive Publication Date: 2018-12-11
WUHU SHENGMEIFU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing image capture devices use flashlights, LEDs and other lighting systems. When used for image acquisition for tongue diagnosis, reflections will occur, thus forming white overexposed areas on the tongue image, which are indistinguishable from the white tongue coating area.

Method used

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  • A direct illumination system for machine vision
  • A direct illumination system for machine vision
  • A direct illumination system for machine vision

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0027] as attached figure 1 As shown, this embodiment provides a lighting system for machine vision, including:

[0028] A graphic data generating device capable of generating graphic data of lighting required by machine vision;

[0029] An optical signal output device capable of outputting an optical signal of illumination required for machine vision according to the graphic data;

[0030] Wherein, the graphic data corresponds to the shape of the observed object and is divided into one or more graphic units.

[0031] Specifically, the graphic data generation device can acquire an initial image of the observed object, and generate the graphic data according to the initial image.

[0032] Specifically, the graphic data generation device extracts the data of the shape of the observed object from the initial image by using an image segmentation method, and generates the graphic data according to the data of the shape of the observed object.

[0033] Specifically, the image seg...

Embodiment 2

[0039] Such as figure 2 As shown, this embodiment provides a tongue image diagnostic device, including a control device, an image acquisition device, and an illumination system according to any one of the above technical solutions.

[0040] Specifically, the optical signal output by the lighting system is white light.

[0041] Before performing tongue image diagnosis, it is generally necessary to calibrate the lighting system in the tongue image diagnosis device, and the calibration method includes the following steps.

[0042] Provide a standard model of the patient's tongue under observation, so that the standard model is within the observation range of the machine vision;

[0043] a step of aligning said output optical signal of said graphical data with said standard phantom;

[0044] Brightness calibration steps;

[0045] Color temperature calibration steps.

[0046] Specifically, the optical signal output device outputs the optical signal of the graphics unit to the ...

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PUM

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Abstract

The invention provides a direct illumination system for machine vision, comprising: a graphics data generating device capable of generating graphics data of illumination required by machine vision; and an optical signal output device capable of outputting an optical signal of illumination required for machine vision according to the graphic data. The graphics data corresponds to an outline of an observed object and is divided into one or more graphics units. The system can more precisely control the light path of the illumination system, thereby avoiding the reflection phenomenon and the appearance of the over-exposure area, improving the quality of the collected tongue image of the patient, and ensuring the correctness of the subsequent image analysis and diagnosis.

Description

technical field [0001] The invention relates to a lighting system for machine vision, in particular to a lighting system for a traditional Chinese medicine diagnosis expert system or an auxiliary diagnosis system. Background technique [0002] Tongue diagnosis belongs to the "Wang" diagnosis in the four diagnosis methods of traditional Chinese medicine, and is an important method of diagnosis in traditional Chinese medicine. Tongue diagnosis only needs the patient's tongue image without the assistance of complex diagnostic instruments. Objective research is of great significance. [0003] Machine vision is a rapidly developing branch of artificial intelligence. Simply put, machine vision is the use of machines instead of human eyes for measurement and judgment. The machine vision system converts the captured target into an image signal through machine vision products (ie, image capture devices, such as CMOS and CCD), and transmits it to a dedicated image processing system...

Claims

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Application Information

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IPC IPC(8): G06T7/136G16H50/20
CPCG06T2207/20064G06T7/136G16H50/20
Inventor 王元千
Owner WUHU SHENGMEIFU TECH