Fingerprint image enhancement method, fingerprint identification method and application program starting method

A fingerprint image and fingerprint recognition technology, applied in image enhancement, acquisition/organization of fingerprints/palmprints, image analysis, etc., can solve problems such as affecting user experience, unclear fingerprint images, low unlocking efficiency, etc., to improve fingerprint unlocking. Efficiency, reducing complexity and improving quality

Pending Publication Date: 2020-09-22
ARCSOFT CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in most of the current under-screen fingerprint unlocking solutions, due to reasons such as unclear, incomplete or deformed fingerprint images collected, users need to repeatedly place their fingers in the fingerprint collection a

Method used

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  • Fingerprint image enhancement method, fingerprint identification method and application program starting method
  • Fingerprint image enhancement method, fingerprint identification method and application program starting method
  • Fingerprint image enhancement method, fingerprint identification method and application program starting method

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Embodiment Construction

[0095] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0096] The steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

[0097] In order to achieve the objectives of the embodiments of the present invention, the embodiments of the present invention provide a fingerprint image enhancement method, such as figure 1 As shown, the method may include S101-S105:

[0098] S101: Eliminate the background text...

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PUM

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Abstract

The embodiment of the invention discloses a fingerprint image enhancement method, a fingerprint identification method and an application program starting method, and the method comprises the steps: eliminating the background texture of a current frame of fingerprint image, and obtaining a pure fingerprint image; performing first preprocessing on the pure fingerprint image to obtain a first preprocessed image; obtaining an effective area of the first preprocessed image; performing direction field estimation and direction field correction on the effective area; and carrying out second preprocessing on the effective region subjected to direction field correction to obtain a fingerprint enhanced image. Through the method of the embodiment, the number of fingerprint acquisition times is reduced, the quality of the fingerprint image is improved, the complexity of fingerprint acquisition is reduced, the fingerprint unlocking efficiency is improved, and the user experience is improved.

Description

Technical field [0001] The embodiment of the present invention relates to image processing and terminal application technology, in particular to a method for fingerprint image enhancement, fingerprint identification and application startup. Background technique [0002] With the development of mobile terminals (such as mobile phones) from feature phones to smart phones, the unlocking methods of mobile terminals are also constantly changing, from the earliest unlocking methods based on digital passwords or patterns to fingerprints, human faces, The biometric unlocking method based on iris has changed. While technological breakthroughs continue, the convenience and security of unlocking have also been greatly improved. [0003] Nowadays, the under-screen fingerprint unlocking solution has the advantages of beautiful, convenient, fast unlocking speed, and conforming to user habits, and has become one of the mainstream ways of unlocking mobile phones. However, in most of the current ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06F21/32G06F21/60G06F21/62G06T5/00G06T7/194
CPCG06F21/32G06F21/604G06F21/6209G06T5/002G06T5/006G06T7/194G06T2207/20024G06V40/1347G06V40/1318G06V40/1365H04L63/0861G06V40/1376G06V10/30G06V10/54G06T5/007G06T2207/30196
Inventor 朱明铭雷华赵家财梅丽王进
Owner ARCSOFT CORP LTD
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