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Patent

Fingerprint image segmentation method based on ridge lines

Liu Shuxin
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TLDR
In this paper, a fingerprint image segmentation method based on ridge lines is proposed, which combines the density and direction consistency of the ridge lines for detecting and segmenting the fingerprint regions, so that the segmentation efficiency and segmentation accuracy of the incomplete fingerprint images can be effectively improved.
Abstract
The invention discloses a fingerprint image segmentation method based on ridge lines. The fingerprint image segmentation method comprises the following steps: separating fingerprint characteristics, detecting the ridge lines, calculating the density and direction consistency of the ridge lines and segmenting fingerprint regions. For images of various qualities, especially incomplete fingerprint images, a new means which combines the density and direction consistency of the ridge lines is used for recognizing and segmenting the fingerprint regions, so that the segmentation efficiency and the segmentation accuracy of the incomplete fingerprint images can be effectively improved.

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References
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Patent

Fingerprint identifying method and system

TL;DR: In this paper, a fingerprint recognition method is proposed that consists of two steps that are the character distill and the character matching of the fingerprint in order to solve problems of the existing method that are low identify rate and slow identify speed.
Patent

Slap print segmentation system and method

TL;DR: In this article, a system and a method for segmenting slap fingerprints is described, which includes providing a print image, optionally pre-processing the print image and detecting at least a plurality of image components of the printed image, determining at least one segmentation boundary for the print images and computing the convex hull of the image components.
Patent

Fingerprint identification method based on density chart model

Zhou Jie, +1 more
TL;DR: In this article, a fingerprint identification method based on the density diagram model is proposed, which is applicable with a little increment of the needed memory spaces, and it is more suitable to identify the poor quality fingerprints.
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Image segmentation and fingerprint line distance getting technique in automatic fingerprint identification method

TL;DR: In this article, a footprint identification and image division and distance extracting technique was proposed, which aims at current print image division method leading print image gray distribution possibility intensity module and providing one Monte Carlo experiment division process method.