A Study on Underwater Cable Automatic Recognition Using Hough Transformation

it. In fact, video tape is recorded by the video camera which is settled on the AUV. Using these video tapes, we In this paper, we make an attempt to predict the location can know cable's status, and know whether the cable is in of a cable in next frame according to some parameters dangerous. in current frame. At first, the initial condition is that Developing with examination about the Underwater the approximate location of cable must be given. From Optical Cable Network, there are a lot of video tapes are Hough Transformation, a high accumulated degree point taken by the AUV's video camera. A useful automatic in ~~~~h Space is gotten. Aftemar&, by inverse ~~~~h algorithms which can recognize cable and find whether IPransfonnation, using that point, the location is detected the cable is in dangerous is required. This Paper shows and then cable is pointed out from its original image. a study on how to recognize an underwater cable effecBased on the actual working conditions and perfortively by means of time sequence of limited parameter mance indices, as well as the location in current frame, using HOugh Transformation. the maximum mnge of degree within which the cable maybe occurred i n next frame with high possibility is evaluated. firthemore, a narrower mnge of location in next frame 2 Normalized Distribution is confinned according to the speed of robot. It is this narrow range that reduces the influence o f the backqround on 2.1 Recognition on Road the detect object to the least. Therefore, the location of In the past, researches' subjects on Automatic Recognicable can be detected more accurately. tion System were limited on road. For example, a Advanced Car Driver Systeml1I, a Car Automatic 'Ikacking System121, a Car's Number Plate Extraction System and