In order to improve the performance of image mosaic

an automated image mosaic approach was proposed based on adaptive simulated annealing and multiresolution strategy. In the first step of the algorithm

the registration region is adaptively chosen. Then

the parameters of image translation and rotation are optimized based on mutual information with a hybrid method of adaptive simulated annealing for global searching and a multiresolution approach as a local search strategy

and the process of image mosaic is finally achieved. With conducting 24 times of simulated mosaic experiments on both noisy digital images and medical ultrasound images

this algorithm is proved to be a precise

fast and robust mosaic approach compared with the traditional multiresolution direct-search method. Since this improved algorithm inherits the features of high precision from simulated annealing and high efficiency from the multiresolution method

the mosaic performance is improved by 12.5% in terms of success rate while maintaining acceptable speed.