An iris intelligent 3D information collection and measurement device

Abstract

The embodiment of the present invention provides an iris 3D information collection and measurement device, including an image collection device, a rotation device, an X orbit, and a Y orbit; The device is located behind the image acquisition device, facing away from the direction of the iris; the X track and the Y track are used to carry the image capture device, and enable the image capture device to slide on them simultaneously, and the compound motion trajectory is a curve. For the first time, it is proposed that through the cooperation of the rotating shaft and the two-dimensional guide rail, the concave motion trajectory of the camera suitable for iris collection can be realized without increasing the volume of the device.

Description

technical field [0001] The invention relates to the technical field of iris shape measurement, in particular to the technical field of 3D shape measurement. Background technique [0002] At present, when iris recognition is performed, the human eye is usually photographed, the iris picture is collected, and compared with the previously collected standard picture, so as to determine whether the identity verification can be passed. However, such comparisons all use planar images, which makes the comparison lose the actually existing one-dimensional data (depth data). Therefore, there is a large misjudgment rate. [0003] Moreover, two-dimensional image acquisition can only describe the two-dimensional characteristics of the iris, which makes the measurement of the iris too simple and cannot reflect the real three-dimensional size and shape of the iris. [0004] At present, there are also some active 3D shape measurement schemes, but all of them require active luminescence. ...

AI Technical Summary

Problems solved by technology

However, in practical applications, it is found that unless there is an accurate angle measurement device, the user is not sensitive to the angle, and it is difficult to determine the angle accurately; the size of the target object is difficult to accurately determine, especially in some applications where the target object needs to be replaced frequently. A lot of extra work is required, and professional equipment is required to accurately measure irregular targets

Measurement errors lead to camera position setting errors, which will affect the speed and effect of acquisition and synthesis; the accuracy and speed need to be further improved

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