Calculus method for re-constructing from one-dimensional information into two-dimensional information and one-dimensional dermatoglyph sensing module

Abstract

The reduction method to rebuild first-dimension information into the 2D comprises: applying first-dimension dermatoglyph sensing module formed by linear-arranged sensor array to continual read target first-dimension near-field image information, using a reduction method to detect the correlative motion speed of the information, and rebuilding the target 2D information.

Description

technical field [0001] The invention relates to a calculation method for reconstructing two-dimensional information from the one-dimensional information captured when the object under test and its image input device generate relative motion, especially the calculation method and its image for the object under test is skin texture input device. Background technique [0002] Fingerprint reading methods and devices have recently received more and more attention. In real life, due to the maturity of fingerprint identification technology, applications related to fingerprint identification have become more and more common, such as early applications in private access control, security systems, or It is a large-scale fingerprint identification system installed in a specific institution, and has recently been applied to the identity identification system of entry-exit units and household registration systems. With the popularization of handheld electronic devices, some handheld ele...

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Problems solved by technology

However, the quality of the reconstructed two-dimensional information will be greatly affected by the uniformity and similarity of each sensing element (sensor) of each sensor

However, due to process factors, the characteristics of each sensing element of each sensor will still have some differences, and factors such as lighting, light guide and imaging optical equipment will make the comprehensive characteristics of each sensing element of each sensor differ even more. Large, thus affecting the quality of the reconstructed two-dimensional information, or additional pre-correction (Calibration) procedures need to be added to pre-compensate the above-mentioned characteristic differences, and it still requires illumination and imaging optical machines, so it still occupies a volume

To sum up, although the area of ​​this dermatoglyph reading method is smaller than that of the one-dimensional strip-shaped dermatograin reading method, and the cost of the sensor is lower than that of the one-dimensional strip-shaped sensor, it is still not very ideal.

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