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A method and computing device for evaluating the quality of iris images

A technology for iris image and quality evaluation, which is applied in the field of image processing, can solve problems such as differences affecting evaluation indicators, and achieve the effect of getting rid of judgment errors

Active Publication Date: 2021-11-09
王晓鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the applicant found in the research that because the high-frequency energy is related to the information content of the image itself, for some iris images with more texture and details, the high-frequency energy is also more, even if the image clarity is not enough, the calculated clear The degree of evaluation index will still be higher than those of less textured, clear iris images
Therefore, in practical applications, the differences in iris area folds and pigmented spots among different individuals will greatly affect the differences in evaluation indicators.

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  • A method and computing device for evaluating the quality of iris images
  • A method and computing device for evaluating the quality of iris images
  • A method and computing device for evaluating the quality of iris images

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Embodiment Construction

[0029] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] figure 1 is a block diagram of an example computing device 100 . In a basic configuration 102 , computing device 100 typically includes system memory 106 and one or more processors 104 . A memory bus 108 may be used for communication between the processor 104 and the system memory 106 .

[0031] Depending on the desired configuration, processor 104 may be any type of processing including, but not limited to, a microprocess...

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Abstract

The invention discloses an iris image quality evaluation method and computing equipment. Wherein, the quality evaluation method includes the steps of: extracting the spot edge points of the iris image; performing ellipse fitting on the spot edge points to obtain at least one fitted ellipse; calculating fitting parameters according to the fitted ellipses; based on the fitting parameters, A quality assessment result of the iris image is determined. In addition, the present invention also discloses a computing device and a corresponding readable storage medium for executing the above method.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an iris image quality evaluation method and computing equipment. Background technique [0002] The iris is a ring-shaped tissue located between the white sclera and the black pupil of the human eye, which contains the most abundant texture information. From the appearance point of view, the iris is composed of many crypts, folds and pigment spots, which is one of the most unique results in the human body. As an important identification feature, iris recognition has the advantages of uniqueness, stability, collectability and non-invasiveness. Therefore, iris recognition technology is a biometric technology that can accurately identify individuals and has great application prospects. [0003] Iris recognition systems are increasingly used in large-scale application scenarios. Usually, the workflow of an iris recognition system is as follows: first collect the registratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/13
CPCG06T7/0002G06T2207/30041G06T2207/30168G06T7/13
Inventor 王晓鹏
Owner 王晓鹏