Improved Algorithm to Extraction EAST Plasma Image Boundary
YU Yuan-chu · Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms · 2015
In this paper,a fast CCD camera was used to capture the Tokamak plasma discharge image.According to the characteristics of plasma image position during the plasma discharge,an improved Canny algorithm to extract the real plasma boundary position based on Otsu threshold was proposed in plasma boundary detection.By using least square method to fit the boundary of plasma image,the accurate position of plasma was obtained.