Method and apparatus for the electronic capture of rolled fingerprints

The Invention relates to a method and an arrangement for optoelectronic Recording a moving object, in particular for receiving a on a support surface unrolled finger.The task of a new opportunity for electronic recording of rolled fingerprints to find the high resolution with simple sensors frames with a high Frame rate for complete Composition of the individual images into an overall picture allows, is achieved by of location and size of the object (1) in at least one of the from the image capturing unit (2) read individual images identified a the object (1) enclosing character (32) is, from the surrounding Figure (32) by an enlarged tolerance additions rectangle (33), the parallel aligned with row and column of the sensor device (22) it is determined, and that the enlarged rectangle (33) to predict and adjusting the size and position an active pixel region (23) of the image pickup unit (2) for at least a subsequently be read out image (31) is used so that the read active pixel area (23) of the imaging unit (2) always kept small due to its adaptation and a higher frame rate is realized in the sensor reading or data transmission.