The Beamlet transform was introduced to detect the line segment characteristic of the structured light in the image to identify the position of the weld seam effectively.

Further it mainly aims at the segment of shot, selection of key frame, classify of audio characteristic and detection of caption-region in video and presents corresponding improved approach.

The traffic sign automatic recognition system is composed of the following modules: image segment, camera calibration, characteristic curve extraction, three-dimension recovery and image matching.