In this paper, we propose a general framework for studying a class of weighted highpass filters. Our framework, based on a multiscale signal decomposition, allows us to study a wide class of filters and to assess the merits of each. We derige an automatic procedure to optimally tune a filter to the local structure of the image under consideration. The entire algorithm is fully automatic and req...

Twelve years ago, Proceedings of the IEEE devoted a special section to the synchronous languages. This article discusses the improvements, difficulties, and successes that have occured with the synchronous languages since then. Today, synchronous languages have been established as a technology of choice for modeling, specifying, validating, and implementing real-time embedded applications. The ...

Received October 23, 1997; revised March 27, 1998; accepted May 13, 1998. Communicated by Shing-Tsaan Huang. *A preliminary version of this paper appeared in the Proceedings of the IEEE Second International Conference on Algorithms & Architectures for Parallel Processing (ICA3PP’96). *This research was supported in part by the National Science Council, R.O.C., under Grant number NSC86-2213E-216...