Fingerprint identification device and fingerprint identification method
A fingerprint recognition and object technology, applied in character and pattern recognition, details involving image splicing, image data processing, etc., can solve the problems of fingerprint misjudgment, fingerprint recognition correctness and security decline, etc., to solve the problem of recognition error Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 example
[0031] figure 2 It is a schematic diagram of emitting a structured light pattern from a position of a display corresponding to a sensor according to an embodiment of the present invention.
[0032] Please also refer to Figure 1A , Figure 1B and figure 2 , when the object to be measured touches the area 220 of the display 110 corresponding to the sensor 120 , the light source 115 can emit structured light to scan the object to be measured. The structured light can have phase patterns 230(1), 230(2), 230(3), . . . , 230(N) with different phase shifts, and the light source 115 sequentially emits the The structured light is used to scan the object to be measured, so that the sensor 120 obtains N images corresponding to the phase patterns 230(1)-230(N) of the object to be measured. The phase patterns 230(1)-230(N) can be established by sinusoidal fringe patterns, and each of the phase patterns 230(1)-230(N) can include information of different phase shifts. Taking N=3 as an...
no. 2 example
[0041] image 3 It is a schematic diagram of emitting a structured light pattern from a position of a display corresponding to a sensor according to another embodiment of the present invention.
[0042] Please also refer to Figure 1A , Figure 1B and image 3When the object to be measured touches the area 320 of the display 110 corresponding to the sensor 120 , the light source 115 may emit structured light with a color pattern to scan the object to be measured so that the sensor 120 obtains a color image of the object to be measured. The color pattern of the structured light can be a three-channel color image composed of the red phase pattern 331 , the green phase pattern 332 and the blue phase pattern 333 . For example, the red phase pattern 331 , the green phase pattern 332 and the blue phase pattern 333 may have a phase shift of 120 degrees between each other.
[0043] Next, the processing module 130 can obtain the color image of the object under test from the sensor 1...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com