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Method and electronic device for determining moving direction of finger

An electronic device and displacement technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as huge amount of calculation

Active Publication Date: 2018-07-20
EGIS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the traditional technology of judging the direction of finger displacement, it is necessary to directly perform multiple similarity calculations (such as calculating the Euclidean distance) for a large area to know the direction of finger displacement, resulting in a huge amount of calculation.

Method used

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  • Method and electronic device for determining moving direction of finger
  • Method and electronic device for determining moving direction of finger
  • Method and electronic device for determining moving direction of finger

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Experimental program
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Embodiment Construction

[0026] What is described in this chapter is the best way to implement the present invention. The purpose is to illustrate the concept of the present invention rather than to limit the protection scope of the present invention. The protection scope of the present invention should be defined by the claims.

[0027] figure 1 is a block diagram showing the electronic device 100 according to an embodiment of the present invention. According to an embodiment of the present invention, the electronic device 100 may refer to an electronic device with a fingerprint recognition function, such as a mobile phone, a smart phone, a tablet computer, or a notebook computer. Such as figure 1 As shown, the electronic device 100 may include a fingerprint sensing device 110 , a processor 120 , and a storage device 130 . exist figure 1 The block diagram in the figure is only for the convenience of describing the embodiment of the present invention, but the present invention is not limited theret...

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Abstract

The present invention discloses a method and an electronic device for determining a moving direction of a finger. The method for determining the moving direction of a finger includes the steps of: sensing a fingerprint of the finger to generate a first frame at a first sampling time point, wherein the first frame includes a plurality of first blocks; sensing the fingerprint to generate a second frame at a second sampling time point, wherein the second frame includes a plurality of second blocks, wherein each of the second blocks corresponds to one of the first blocks; comparing each of the first blocks with its corresponding second block to obtain moving information of such second block; and determining the moving direction of the finger according to moving information of all of the second blocks. The method can reduce the operation amount required by determination of a finger moving direction and can improve the speed of determination of the finger moving direction.

Description

technical field [0001] The present invention mainly relates to the technology of judging the direction of finger displacement, and in particular to the technology of judging the direction of finger displacement according to the displacement information corresponding to multiple regions included in the fingerprint frame. Background technique [0002] The traditional technique for judging the direction of finger displacement is to use a large-area test area to calculate the Euclidean distance, and the test area will be slightly smaller than the size of the original image. Specifically, traditionally, when judging the direction of finger displacement, a test area is obtained in the previous image, and then the test area is moved in different directions (up, down, left, and right) in the new image for a certain distance, and compared with this test area. The area and the area of ​​the new image correspond to the similarity of different displacement directions, and the position w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/041
CPCG06F3/03547G06F3/0412G06F3/0416
Inventor 江元麟洗乙文
Owner EGIS TECH