01-12-2016 дата публикации
Номер: US20160346821A1
Принадлежит:
A system and method that includes, in an embodiment, a prism, a camera, a light source, and a plate. The system, in an embodiment, is configured for scanning a roll and generating an image of the roll surface. The prism, in an embodiment, is positioned below the camera and above the plate. In an embodiment, the plate is positioned below the prism and above the roll surface. In an embodiment, the light source is positioned above the prism. In an embodiment, the light source and the prism are positioned to provide light to the roll surface at an angle of at least 75 degrees measured from a line normal to the roll surface. In an embodiment, the prism is configured to refract light from the light source, the camera is a line scan camera that includes a row of pixel sensors, and the light source includes light emitting diodes. 1. A method comprising: 'wherein the light source and the prism are positioned to provide light to the surface of the roll at an angle of at least 75 degrees as measured from a line normal to the surface of the roll;', 'lighting a surface of a roll using a light source and a prism;'} 'wherein each line corresponds to a section of the roll;', 'receiving, by at least one specifically programmed computer system, a plurality of lines from a line scan camera while the roll is rotating;'}creating, by the at least one specifically programmed computer system, a plurality of frames based, at least in part, on the plurality of lines;generating, by the at least one specifically programmed computer system, the two-dimensional image of the surface of the roll based, at least in part, on the plurality of frames.2. The method of claim 1 , wherein the plurality of lines is received at a speed of 1000 to 5000 lines per second.3. The method of claim 1 , wherein each of the plurality of frames is formed of at least 1000 lines.4. The method of claim 1 , wherein the surface of the roll is at least partially covered by a fluid during the receiving step.5. The method of ...
Подробнее
