Method and device for evaluating image quality

A technology of image quality and image, applied in image enhancement, image analysis, image data processing, etc., can solve problems such as far difference

Active Publication Date: 2016-12-07
BEIJING LUSTER LIGHTTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these image quality evaluation methods need to provide standard reference images, which are not applicable to the field of industrial vision, and the quality standards they focus on (such as similarity, edge smoothness, etc.) are far from the focus of industrial vision imaging quality.

Method used

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  • Method and device for evaluating image quality
  • Method and device for evaluating image quality
  • Method and device for evaluating image quality

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Embodiment Construction

[0050] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the embodiments of the present invention.

[0051] refer to figure 1 , figure 1 is a schematic flowchart of a method for evaluating image quality provided by an embodiment of the present invention.

[0052] exist figure 1 Among them, the method for evaluating image quality includes:

[0053] Step 101, acquiring a preset algorithm for evaluating image quality and corresponding image data;

[0054] Wherein, the algorithm includes an algorithm for evaluating image clarity, an algorithm for evaluating image co...

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Abstract

The embodiment of the invention discloses a method and a device for evaluating image quality. A preset image quality evaluation algorithm and corresponding image data are acquired. According to the algorithm and the image data, an image quality evaluation result is acquired, the algorithm comprises an algorithm for evaluating the image definition, an algorithm for evaluating the image brightness and darkness contrast and / or an algorithm for evaluating the image noise size, comprehensive evaluation is carried out from three aspects of the definition, the contrast and the noise most concerned in industrial vision, and multi-aspect evaluation can reflect the imaging quality more accurately and objectively. In view of the industrial vision field, a set of imaging quality evaluation method most fit with the image quality requirements in the industrial field is provided from a more professional aspect, and the problem that the existing image quality evaluation method is not applicable to the industrial vision field is solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of industrial images, and in particular, to a method and device for evaluating image quality. Background technique [0002] In the process of image acquisition and transmission, the image quality may be degraded due to various factors. For example, the image may be blurred due to object movement, lens virtual focus, etc.; due to the combination of light source and object material, the angle of light source irradiation, etc. may cause low contrast; due to CCD chip temperature, illumination, channel transmission interference, etc. may cause image noise. [0003] In industrial applications, image quality directly affects the design of visual solutions and the accuracy and efficiency of visual processing. At the same time, the installation information and debugging information of the optical system can be quantitatively obtained from the evaluation information of image quality. [0004] H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/10004G06T2207/30108G06T2207/30168
Inventor 杨艺马丽钟克洪
Owner BEIJING LUSTER LIGHTTECH
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