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Segmentation display method and device for a multi-fingerprint image and computer readable storage medium

A split display and multi-fingerprint technology, which is applied in the field of intelligent transportation, can solve the problems of messy display, irregular and uniform angles, and easy intersection of external rectangular frames, so as to improve user experience, solve messy and inconsistent phenomena, and enhance aesthetics Effect

Pending Publication Date: 2022-01-21
SHENZHEN MAXVISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When multiple fingers are placed obliquely when collecting fingerprints, when the area of ​​the circumscribed rectangle is too large, the circumscribed rectangles of two adjacent fingerprint areas are likely to overlap; When the inclination angle is not uniform, the angle difference of individual fingers even exceeds 30 degrees, which causes the angles between the multiple circumscribed rectangles and the vertical direction to be inconsistent when the circumscribed rectangle is positioned and displayed; this easily leads to the segmentation of multiple fingerprints The final display is very messy, which affects the appearance of the output image of the panel and is not conducive to improving the user experience

Method used

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  • Segmentation display method and device for a multi-fingerprint image and computer readable storage medium
  • Segmentation display method and device for a multi-fingerprint image and computer readable storage medium
  • Segmentation display method and device for a multi-fingerprint image and computer readable storage medium

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Embodiment 2

[0114] refer to Figure 10 In the second embodiment of the present application, the multi-fingerprint image segmentation display device 100 includes a fingerprint collection module 200 , an image processing unit 300 and a display screen 400 . The fingerprint collection module 200 is used to collect a first grayscale image including multi-fingerprints, which collects fingerprint information by photoelectric technology or capacitive technology. The image processing unit 300 is connected to the fingerprint collection module 200 and is used to obtain the first grayscale image collected by the fingerprint collection module 200, and is used to execute the steps of the multi-fingerprint image segmentation and display method in the first embodiment. In a specific embodiment, the image processing unit is 300DPS image processing chips. The display screen 400 is connected to the image processing unit 300 and is used to display the processing result of the image processing unit 300 ; in ...

Embodiment 3

[0117] Embodiment 3 of the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the computer program implements the multi-fingerprint image segmentation and display method in Embodiment 1 when the computer program is executed by the processor. In this embodiment, the computer-readable storage medium may be but not limited to an electrical, magnetic, optical or semiconductor system, device or device, specifically but not limited to a magnetic disk, hard disk, read-only memory, random access memory or Erasable programmable read-only memory.

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Abstract

The invention provides a segmentation display method for a multi-fingerprint image, and the method comprises the steps: obtaining a first gray-scale map of a multi-fingerprint, and carrying out the preprocessing of the first gray-scale map, and obtaining a binary image; carrying out image segmentation on the binarized image to obtain a second grey-scale image containing a plurality of fingerprint communication areas G1, G2,..., Gn; calculating a minimum rectangular frame of all fingerprint communication regions in the second grey-scale map to obtain a minimum rectangular frame set R = {R1, R2,..., Rn}; determining a minimum rectangular frame Rmax with the largest area in the minimum rectangular frame set R, and unifying the inclination angle of each minimum rectangular frame in the minimum rectangular frame set R with the inclination angle of the Rmax; and performing color rendering on all the minimum rectangular frames after inclination unification. The invention further provides a multi-fingerprint image segmentation display device and a computer readable storage medium.

Description

technical field [0001] The present application relates to the technical field of intelligent transportation, and more specifically, relates to a method, device and computer-readable storage medium for segmenting and displaying multi-fingerprint images. Background technique [0002] With the advancement of technology, fingerprint identification technology has begun to slowly enter the computer world. Automatic fingerprint identification system is a computer application system that uses computer technology to process, store, compare and assist identification of fingerprint image information. In places with strict identity authentication requirements, it is required to collect multiple fingerprints for authentication and identification at the same time. [0003] The identification and authentication process will involve fingerprint segmentation and output display of fingerprints. The multi-fingerprint image collected is divided into multiple fingerprint areas by image segmenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06T7/187G06T5/30G06T5/00G06V10/28
CPCG06T7/11G06T7/187G06T5/30G06T5/70
Inventor 陈余泉付磊李球李山路徐波
Owner SHENZHEN MAXVISION TECH