An image capture device based on a single sensor and spectral control

An image capture, single-sensor technology, used in image analysis, image data processing, instruments, etc., can solve problems such as failure, edge detection or difficulty in fitting rigid shapes, and achieve the effects of low device cost, simple structure, and easy use.

Inactive Publication Date: 2019-01-18
YONGZHOU GOLDEN ANT NEW ENERGY MASCH CO LTD
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AI Technical Summary

Problems solved by technology

Therefore, traditional template- and boundary-based iris segmentation methods will likely fail due to difficulties in edge detection or fitting rigid shapes

Method used

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  • An image capture device based on a single sensor and spectral control

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Embodiment 1

[0020] An image capture device based on a single sensor and spectrum control, comprising a housing 1, an illuminator 2, an objective lens 3, a collimating mirror 4, an illuminator switch control module 5, a focusing lens 6, an image sensor 7, a connector 8 and an image Processor 9;

[0021] The housing 1 is a closed cavity structure, and its internal cavity is divided into an upper illumination cavity and a lower image capture cavity, and the image capture cavity is sequentially divided into objective lenses by partitions from left to right cavities, focusing cavity and sensor cavity, the left side wall of the lighting cavity is provided with light holes, and the partitions are all provided with light holes;

[0022] The illuminator 2 is arranged inside the illumination cavity positioned at the top of the objective lens cavity, the left side of the objective lens cavity is provided with a light entrance hole, and the objective lens 3 and the collimating mirror are sequentially...

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Abstract

The invention relates to an image capture device based on single sensor and spectrum control, comprising a housing, an illuminator, an objective lens, a collimating lens, an illuminator switch controlmodule, a focusing lens, an image sensor, a connector and an image processor. The shell is a closed cavity structure, and the internal cavity is divided into an illumination cavity and an image capturing cavity. The image capturing cavity is sequentially divided into an objective lens cavity, a focusing cavity and a sensor cavity by a partition plate from left to right. The illuminator is arranged inside that illumination cavity, the objective lens and the collimating mirror are arranged inside the objective lens cavity, the focusing lens is arranged inside the focusing cavity, the image sensor is arranged inside the sensor cavity, and an output end of the image sensor is electrically connected with the image processor through a connector. The invention can use a plurality of light sources, and the combination of the selected light sources can be changed by the illuminator switch control module, and can be extended to different occasions to meet the requirements of the automatic irisrecognition system.

Description

technical field [0001] The invention relates to an iris image acquisition device, in particular to an image capture device based on single sensor and spectrum control. Background technique [0002] Biometrics is a technology that uses biological characteristics to identify an individual. The iris has gradually become one of the most effective biometric features because of its uniqueness, stability and security. Iris-based automatic identification and verification systems have grown in popularity over the past few years due to the advent of efficient, available and accurate iris recognition algorithms. The iris recognition process is roughly divided into 6 steps: collecting iris pictures; image mode conversion; positioning and segmentation of iris inner and outer boundaries; iris normalization; feature extraction of iris coding; feature matching. Among them, the third step, the positioning and segmentation of the inner and outer boundaries of the iris, is the most important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/11G06T7/40
CPCG06T7/11G06T7/40G06V40/19G06V40/45
Inventor 潘致利
Owner YONGZHOU GOLDEN ANT NEW ENERGY MASCH CO LTD
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