Straight Line Detection AndReal -Time Line detection Using OpenGL
Moumita Ghosh, Himadri NathMoulick · 2014
Line recognition is an important aspect in image processing. Many line detection algorithms were introduced. Hough Transform for line detection is difficult to accelerate using the GPU because it essentially requires rasterization of sinusoids into a highresolution raster of accumulators, which is not a suitable task for GPU. In this paper, a GPU implementation of the PClines a new parameterization of lines for the Hough Transform. PClines are a point-to-line-mapping . The detection of lines uses the graphics processor to rasterize lines into a rectangular frame buffer which is a task very natural and effective on the GPU. The OpenGL 3.3 pipeline is used to efficiently perform the whole of the PClines-based Hough Transform on the GPU. Experimental evaluation shows that even for high-resolution input images with complicated content, the line detector performs easily in real time. KeywordsLine detection, width estimation, edge, Helmholtz principle ,Acontrario detection, detection.