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Noise photosensitive unit determination method and fingerprint identification method and device

A photosensitive unit and fingerprint technology, applied in the fields of electronic equipment, storage media, and fingerprint identification circuits, can solve problems such as affecting fingerprint identification and reducing the success rate of fingerprint identification, and achieve the effect of improving the success rate, facilitating compensation, and eliminating noise.

Pending Publication Date: 2020-12-04
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

The noise signal will form black stripes in the fingerprint image, which will affect fingerprint recognition and reduce the success rate of fingerprint recognition

Method used

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  • Noise photosensitive unit determination method and fingerprint identification method and device
  • Noise photosensitive unit determination method and fingerprint identification method and device
  • Noise photosensitive unit determination method and fingerprint identification method and device

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Embodiment Construction

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0059] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or mo...

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Abstract

The invention relates to the technical field of electronic equipment, in particular to a noise photosensitive unit determination method device, a fingerprint recognition method and device, a circuit,a storage medium and electronic equipment. The noise photosensitive unit determination method comprises the following steps: determining fingerprint acquisition time of a target photosensitive unit ina fingerprint scanning period according to a fingerprint scanning signal of a fingerprint sensing module; determining turn-off time of the target sub-pixel unit in one fingerprint scanning period according to a screen driving signal of the display panel; based on the fingerprint acquisition time of the target photosensitive unit and the turn-off time of the target sub-pixel unit, determining theeffective fingerprint acquisition time of the target photosensitive unit in one fingerprint scanning period; and when the effective fingerprint acquisition time of the target photosensitive unit is inconsistent with a preset time threshold, determining that the target photosensitive unit is a noise photosensitive unit. A noise photosensitive unit of the plurality of photosensitive units can be determined.

Description

technical field [0001] The present disclosure relates to the technical field of electronic equipment, in particular, to a method and device for determining a noise photosensitive unit, a fingerprint identification method and device, a fingerprint identification circuit, a storage medium, and an electronic device. Background technique [0002] With the development and progress of technology, under-screen fingerprint recognition technology has gradually been applied to electronic devices. The under-screen fingerprint recognition technology can use the light emitted by the sub-pixel unit in the display screen as the light source for fingerprint recognition. When the light emitted by the sub-pixel unit is used for fingerprint recognition, the fingerprint signal output by the fingerprint sensor will have noise. The noise signal will form black stripes in the fingerprint image, thereby affecting fingerprint identification and reducing the success rate of fingerprint identification...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/13G06F2218/02
Inventor 王磊高延凯
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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