Abstract: A method and an apparatus for grouping individual products such as industrially baked products that travel past a visiometry station into lots for counting them. In a viewing zone of a conveyor belt, a laser triangulation visiometry system is used. The method and apparatus also uses a signal processor associated with the camera that deduces from the images acquired thereby at least one piece of information on the location of the products on the conveyor belt as well as height information thereon. This information is then used by the signal processor to automatically distinguish between the presence of a product and the presence of contaminating material (for example flour or chocolate particles) on the conveyor belt and to distinguish the presence of several partially or fully overlapping products from the presence of a single product on said conveyor belt. Preferably, two cameras are disposed symmetrically relative to a laser plane substantially perpendicular to the plane of the viewing zone.

Abstract: A method and an apparatus for grouping individual products such as industrially baked products that travel past a visiometry station into lots for counting them. In a viewing zone of a conveyor belt, a laser triangulation visiometry system is used. The method and apparatus also uses a signal processor associated with the camera that deduces from the images acquired thereby at least one piece of information on the location of the products on the conveyor belt as well as height information thereon. This information is then used by the signal processor to automatically distinguish between the presence of a product and the presence of contaminating material (for example flour or chocolate particles) on the conveyor belt and to distinguish the presence of several partially or fully overlapping products from the presence of a single product on said conveyor belt. Preferably, two cameras are disposed symmetrically relative to a laser plane substantially perpendicular to the plane of the viewing zone.

Abstract: In accordance with the invention, the products to be inspected are made to travel past the field of vision of a matrix camera (4) which captures successive images when the products are lit alternately in direct lighting mode (32, 32) and in backlighting mode (33) through a translucent conveyor belt (35). With the help of the images obtained under backlighting, a contour inside which is defined a sample zone covering a surface of predetermined shape calculated so as to be intruded fully within the area of said contour is determined for each product. The contrasts discernible in surface analysis on the direct lighting image are then examined, for example to determined a density of blemishes.