Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A Real-Time Wavelet-Domain Video Denoising Implementation in FPGA | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2006 Article ID 16035 Pages 1-12 DOI ES 2006 16035 A Real-Time Wavelet-Domain Video Denoising Implementation in FPGA Mihajlo Katona 1 Aleksandra Pizurica 2 Nikola Teslic 1 Vladimir Kovacevic 1 and Wilfried Philips2 1 Chair for Computer Engineering University of Novi Sad Fruskogorska 11 21000 Novi Sad Serbia and Montenegro 2 Department of Telecommunications and Information Processing Ghent University Sint-Pietersnieuwstraat 41 9000 Ghent Belgium Received 15 December 2005 Accepted 13 April 2006 The use of field-programmable gate arrays FPGAs for digital signal processing DSP has increased with the introduction of dedicated multipliers which allow the implementation of complex algorithms. This architecture is especially effective for data-intensive applications with extremes in data throughput. Recent studies prove that the FPGAs offer better solutions for real-time multiresolution video processing than any available processor DSP or general-purpose. FPGA design of critically sampled discrete wavelet transforms has been thoroughly studied in literature over recent years. Much less research was done towards FPGA design of overcomplete wavelet transforms and advanced wavelet-domain video processing algorithms. This paper describes the parallel implementation of an advanced wavelet-domain noise filtering algorithm which uses a nondecimated wavelet transform and spatially adaptive Bayesian wavelet shrinkage. The implemented arithmetic is decentralized and distributed over two FPGAs. The standard composite television video stream is digitalized and used as a source for real-time video sequences. The results demonstrate the effectiveness of the developed scheme for real-time video processing. Copyright 2006 Mihajlo Katona et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium .
