Real-Time Mutual Information Matching and Its Implementation on GPU
Cui Yulianb · Electronics Optics & Control · 2010
To improve the rate and accuracy of module matching,a new algorithm of real-time module matching was proposed based on mutual-information,which was implemented on Graphics Process Unit(GPU).To reduce the complexity of the algorithm for executing on GPU,image binaryzation was used for reducing the quantity of temporary variables to four.Then GPU was used to calculate the mutual information of module and weldbead image pixel by pixel.The algorithm proposed here was used in a weldbead locating system and GPU was used for calculating the mutual information.Experiment showed that the proposed algorithm can accomplish 30 frames per second.