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小波分解和重构算法在数字图像上的应用 被引量:1

Wavelet Decomposition and Reconstruction Algorithm on Digital Image Analysis
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摘要 从小波分析数值建模方程出发,提出了一种小波分解和重构算法。在信号处理方面采用低、高频二级分解重构,不但能有效弥补傅立叶变换在时域与频域对信号局部分析缺失的不足,而且能在短时傅立叶变换基础上解决图像分辩率和频率分辨率问题。该方法可应用于非平稳信号分析,在图像压缩、图形去噪、机器视觉增强等领域具有重大意义。 In this paper,based on the numerical modeling equations of wavelet analysis,a wavelet decomposition and reconstruction algorithm is presented.In signal processing,wavelet transform can compensate the lack of local signal in Fourier transform,improve the image resolution and frequency resolution,is of great significance in image compression,graphics noising,machine vision enhancement,etc.
出处 《机械工程与自动化》 2016年第3期31-32,35,共3页 Mechanical Engineering & Automation
关键词 小波变换 数字图像 分解重构 wave transform digital image decomposition and reconstruction
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