A High Precision Biorthogonal 9/7 Wavelet Filter Implemented in the FPGA  

作　　者：韩启祥 王宇聪 蔡惠智 

机构地区：[1]Institute of Acoustics, Chinese Academy of Science

出　　处：《Journal of Donghua University(English Edition)》2012年第1期80-83,共4页东华大学学报（英文版）

摘　　要：An efficient high precision biorthogonal 9/7 wavelet filter structure for image processing applications was proposed. This structure aimed at high precision applications. A precision improved distributed algorithms (DA) had been proposed. Comparing with traditional DA implementations, the new DA had higher precision while preserves smaller area. The proposed structure was verified in Spartan-6 field programmable gate array (FPGA) and achieved 200 MHz operation frequency. The peak signal to noise ratio (PSNR) of reconstructed image (Lena) achieves 74 dB which is very high comparing with other implementations.An efficient high precision biorthogonai 9/7 wavelet filter structure for image processing applications was proposed. This structure aimed at high predsion applications. A precision improved distributed algorithms （DA） had been proposed. Comparing with traditional DA implementations, the new DA had higher precision while preserves smaller area. The proposed structure was verified in Spartan-6 field programmable gate array （FPGA） and achieved 200 MHz operation frequency. The peak signal to noise ratio （PSNR） of reconstructed image （Lena） achieves 74 dB which is very high comparing with other implementations.

关 键 词：wavelet filter discrete wavelet transformation (DWT) field programmable gate array (FPGA) distributed algorithm 

分 类 号：TN919.81[电子电信—通信与信息系统]