Human palm print image acquiring device and processing method

Abstract

The invention provides a human palm print image acquiring device and a processing method. The human palm print image acquiring device consists of a synchronization unit, a sensor unit, a control unit and a computer. The synchronization unit is connected with the sensor unit. The sensor unit is connected with the control unit. The control unit is connected with the computer. The synchronization unit consists of a multiple-reflection optical system, a roller pair, a gear bank and a photoelectric encoder. The sensor unit comprises a CCD (Charge Coupled Device) linear array image sensor and a CIS (Contact Image Sensor) linear array image sensor module. The control unit is a linear array palm print image acquisition control unit on the basis of an FPGA (Field Programmable Gate Array) and a USB (Universal Serial Bus). According to the invention, under the condition of keeping the image quality and the identification precision, the volume is reduced. A palm print image acquired by the human palm print image acquiring device can be spliced into various resolutions such as 100dpi, 200dpi and the like to adapt to different requirements. According to the invention, the mobile palm print identification can be realized and meanwhile, the human palm print image acquiring device can also be used as a fixed palm print identification device. Two different functions can be achieved by one piece of equipment. The human palm print image acquiring device is flexible and is easy to use.

Description

(1) Technical field [0001] The invention relates to image processing technology, in particular to a human body palmprint image acquisition device and a processing method. (2) Background technology [0002] Since the 1990s, human biometric identification technology has been widely used, and many achievements have been made in the fields of access control and identification. Palmprint recognition technology is one of the most outstanding technologies in human biometrics recognition technology. However, due to the relatively large size of the palmprint image acquisition device, it is inconvenient to use, which has become a difficulty in the large-scale application of palmprint recognition. Existing devices for real-time collection of live palmprint images are all designed based on area array image sensors. The area array image sensor requires a large optical path space, and it is difficult to reduce the volume. Due to the large size of the equipment, it is inconvenient to ins...

AI Technical Summary

Problems solved by technology

The area array image sensor requires a large optical path space, and the volume is difficult to reduce

Due to the large size of the equipment, it is inconvenient to install in a small space, difficult to integrate with other equipment, and cannot be used in mobile places

At the same time, some devices still have problems such as lack of anti-counterfeiting capabilities, or slow image acquisition speed when switching light sources.

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