Abstract: A fingerprint identification system for a motor vehicle includes an ignition mode setting unit, a matching board and an engine control unit. The ignition mode setting unit identifies an ignition mode, scans and reads an input fingerprint, and sets and deletes a registered fingerprint. The matching board stores the registered fingerprint and compares the input fingerprint with the registered fingerprint to output an output signal. The engine control unit receives the output signal to output a control signal for controlling a key lock/release and a steering wheel lock/release.

Abstract: The method for acquiring fingerprint by using a linear fingerprint detecting sensor comprises the steps of: capturing a fingerprint image sequentially through the fingerprint detecting sensor; dividing scanned fingerprint image as a predetermined segments according to a constant time and speed; detecting the optimum overlap region by comparing each image strip and its segment with the next image strip; calculating the value of mean image variation through the overlap region; and mixing the entire image by applying the mean image variation value to each image strip. According to the present invention, the method for acquiring fingerprints by a linear fingerprint detecting sensor in accordance with the present invention can improve the correct recognition rate greatly by estimating and compensating for the scanned image by the fingerprint detecting sensor and accurately restoring the same to the original image.