1. A method for the recognition of a join position ( 3 , 4 ) of workpieces ( 1 , 2 ) wherein by way of a light intersection method, lines of light are taken for the capturing of the three dimensional course of the join location, and a grey value image of the join location is taken and evaluated for assessing the quality of the join location, and wherein the lines of light for the light intersection method and the grey value image are received by a sensor ( 20 ), especially a CMOS-sensor, characterized in that the taking of said lines of light is taken in a first region ( 21 ) of the sensor ( 20 ) and the reception of the grey value image is taken in a further second region ( 22 ) of the sensor separate from the first region, which sensor regions are time-wise differently illuminated and which sensor regions are time-wise differently interrogated.