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Acquisition instrument for plam print images of living body

An image acquisition and palmprint technology, applied in image communication, instruments, television, etc., can solve the problems of unstable image quality, inconvenience, and inability to collect clearly, and achieve high definition, fast acquisition speed, and meet real-time acquisition requirements. Effect

Inactive Publication Date: 2005-01-12
TSINGHUA UNIV
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  • Summary
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AI Technical Summary

Problems solved by technology

[0012] To sum up, the traditional ink printing method is affected by the degree of inking and printing strength, the quality of the collected images is unstable, and it is inconvenient, and it is impossible to achieve online real-time collection
The palm prints collected by photography are not clear enough, especially the mastoid prints cannot be collected clearly

Method used

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  • Acquisition instrument for plam print images of living body
  • Acquisition instrument for plam print images of living body
  • Acquisition instrument for plam print images of living body

Examples

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Embodiment Construction

[0030] A kind of living body palmprint image acquisition instrument designed by the present invention is further described in detail as follows in conjunction with accompanying drawings and embodiments:

[0031] General structural embodiment of the present invention is for example image 3 As shown, it includes a casing composed of an instrument box 1 and a box top cover 2 with a window, a curved prism 3 and a prism bracket 4 installed in the casing, and the curved surface of the curved prism is embedded in the window of the top cover Constitute one; Light source 5 and light source bracket 6, digital camera 7 and camera bracket 8, digital camera 7 and light source 5 are respectively placed on one side of the two bottom angle faces of curved surface prism, and make the light beam that light source 5 sends pass through prism and be digitally The camera 7 can receive it; it also includes a communication interface 9 connected with the digital camera 7 and used for data transmissio...

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Abstract

The collecting device includes box body, as well as light source, digital camera, curved prism installed inside box body. A window is opened on top cap of the box. Curved face of the prism is embedded into the window. Palm can be adhibited on surface of prism closely. Light source and digital camera header are setup at two sides of base angle of the prism respectively. Thus, light ray from light source can be received by digital camera. Advantages are: quick collecting speed, and realtime collection.

Description

technical field [0001] The invention belongs to the technical field of biometric feature identification and automatic identity identification, and in particular relates to the technology of collecting palmprint images of living bodies. Background technique [0002] How to identify an individual's identity is a problem that people pay more and more attention to. With the increasing frequency of social interactions and the increasing complexity of social relations, especially the development of the Internet and the advent of the information society, the importance of this problem is more obvious. [0003] At present, most identifications are authenticated by passwords, and a few have begun to use IC cards, magnetic cards or hardware dongles as keys. However, no matter the password or the IC card, it is easy to lose and be stolen, and the password is also easy to forget. All of these will bring great inconvenience and loss to managers and users. Therefore, the confirmation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/04G06K9/20H04N5/225
Inventor 林喜荣苏晓生谭汝谋丁天怀周云龙
Owner TSINGHUA UNIV
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