An efficient implementation of a progressive image transmission system using successive pruning algorithm on a parallel architecture

Presented in this paper is an implementation using a combination of a successive pruning algorithm and a parallel architecture using a digital signal processor and a general purpose processor for progressive transmission of still images. The adaptive pruning algorithm is used for ensuring a minimum quality of the image while further progressions on the image are computed using a modified successive pruning algorithm. Due to the reduction in computations achieved using successive pruning and efficient splitting of tasks between the two processors, the speed of the entire operation is found to increase by a factor of 2.8 compared to the normal implementation of the progressive mode of JPEG.