Vein identification device
A technology of vein identification and enhancement device, applied in the field of vein identification, can solve the problems of unevenness, low definition of finger vein images, affecting the performance of subsequent feature identification, etc., and achieve the effect of good imaging contrast and good image quality.
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Embodiment 1
[0031] Example 1, such as figure 1 As shown, a vein identification device includes a housing 1, a finger groove 2 is arranged on the upper part of the housing 1, an illumination light source module is arranged above the finger groove 2, an imaging module and an imaging module are arranged below the finger groove. Finger positioning device. The illumination light source module includes an LED array 31 on which several uniformly arranged LED lamps are arranged, and the LED array 31 illuminates toward the finger slot 2 . The finger positioning device includes a reflective light source group, and the reflective light source group includes a positioning light source 51 facing the fingertip part and the fingertip part of the finger groove 2, and the positioning light source 51 faces the finger groove 2 irradiate near-infrared light. The imaging module includes a CMOS camera 41 and an infrared filter 42 , and the infrared filter 42 is between the CMOS camera 41 and the finger slot ...
Embodiment 2
[0034] Example 2, such as figure 2 As shown, a vein identification device includes a housing 1, a finger groove 2 is arranged on the upper part of the housing 1, an illumination light source module is arranged above the finger groove 2, an imaging module and an imaging module are arranged below the finger groove. Finger positioning device. The illumination light source module includes an LED array 31 on which several evenly arranged LED lamps are arranged, and the LED array 31 illuminates toward the finger groove 2 . The finger positioning device includes a reflection light source group, and the reflection light source group includes a positioning light source 51 arranged on the fingertip part and the fingertip part of the finger groove 2, and above the positioning light source 51 is arranged a light source for forming structured light. The lens 52 , the near-infrared light irradiated by the positioning light source 51 passes through the lens 52 to form structured light and ...
Embodiment 3
[0037] Example 3, such as image 3 As shown, a vein identification device includes a housing 1, a finger groove 2 is provided on the upper part of the housing 1, an irradiation light source module and an irradiation enhancement device are arranged above the finger groove 2, and an irradiation enhancement device is arranged below the finger groove There are imaging modules and finger positioning devices. The illumination light source module includes an LED array 31, and the illumination enhancement device includes a condenser lens 32. Several evenly arranged LED lamps are arranged on the LED array 31, and the LED array 31 passes through the condenser lens 32 to the finger groove 2 directional light. The finger positioning device includes a reflection light source group, and the reflection light source group includes a positioning light source 51 arranged on the fingertip part and the fingertip part of the finger groove 2, and above the positioning light source 51 is arranged a...
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