Channel scanning method for fingerprint recognition
A scanning method and fingerprint recognition technology, applied in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve the problems of affecting the accuracy of fingerprint recognition, and it is difficult to have the same channels, so as to increase the system cost and eliminate the Effects of channel differences, improved accuracy and speed
Inactive Publication Date: 2018-09-14
南京芯思科技有限公司
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The invention discloses a channel scanning method for fingerprint recognition. The method includes the following steps that: a fingerprint image is scanned through an image scanning sensor; scanned each pixel is connected with a plurality of channels; each pixel is amplified and converted sequentially through each channel, so that the recognition result of each channel can be obtained, wherein therecognition result of the channel has a difference value; the total difference value of each pixel under the plurality of channels is the sum of the difference values of the channels; each pixel is acquired a plurality of times continuously, the product of the number of the times of acquisition and the total difference value is adopted as a pixel difference value; fingerprint image conversion iscarried out on the basis of the pixel difference value, so that a recognition image can be obtained. With the channel scanning method for fingerprint recognition of the invention adopted, differencesbetween the scanning channels can be completely eliminated, and the precision and speed of fingerprint recognition can be improved.
Application Domain
Technology Topic
Fingerprint imagePattern recognition
Image
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