LED supplementary lighting and image clipping evaluation system in standard image acquisition device

A collection device and collection system technology, applied in closed-circuit television systems, optics, instruments, etc., can solve the problem of intelligent clipping evaluation of portraits that do not exist
CN102466945AActive Publication Date: 2012-05-23BEIJING HISIGN TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HISIGN TECH
Publication Date
2012-05-23

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Abstract

The invention relates to an LED supplementary lighting and image clipping evaluation system in standard image acquisition device, comprising an LED light source (101), a 1-120 VDC (Voltage-to-Digital Converter) power supply (102), a control circuit board (103), an image acquisition system (105), an LED light source switch (106), and an LED light source controller (301); the LED light source (101)is connected with the control circuit board (103) via an analog circuit, a digital circuit or an integrated circuit; the LED light source (101) is connected with the 1-120 VDC power supply (102) via the analog circuit, the digital circuit or the integrated circuit; the control circuit board (103) is connected with the image acquisition system (105) via the analog circuit, the digital circuit or the integrated circuit; and the technology of the invention is applicable to the public security image acquisition system, and improves the operation efficiency and image quality.
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Description

technical field

[0001] The invention relates to a portrait standardization automatic tailoring evaluation technology using a special LED supplementary light in a second-generation ID card, passport and other portrait standard collection systems, and belongs to the technical field of face image processing, collection and monitoring. Background technique

[0002] Portrait standard collection systems such as second-generation ID cards and passports play a pivotal role in a modern, information-based society. ID cards, passports and other documents are related to every aspect of everyone's life. The standard portrait collection system for documents is not only related to documents It is more related to the platform construction of its various personnel identity information. The quality of personnel digital photo information collection directly affects subsequent image processing, data transmission and reprocessing.

[0003] At present, in the portrait acquisition process of the ...

Claims

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