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- 视频文字识别在视频分析与检索中有着重要作用,该算法对字幕图像进行N层小波分解,获得该视频文字的低频分量,再借助相似性度量方法实现视频文字的识别。-Video character recognition in the video analysis and retrieval plays an important role in the algorithm of subtitles images N layer wavelet decomposition, which is low-frequenc
Examples-of-wavelet-analysis
- 全文介绍了小波变换的基本理论,并介绍了一些常用的小波函数,它们的主要性质包括紧支集长度、滤波器长度、对称性、消失矩等,都做了简要的说明。在不同的应用场合,各个小波函数各有利弊。-Text describes the basic theory of wavelet transform, and describes some of the commonly used wavelet function, their main properties include compactly supported
maidongxinhao
- 文基于小波分析的特点,提出了一种对信号进行多重小波 变换的自适应去噪法,该方法不仅克服了小波去噪软硬阈值法的局限性,而且解决了自适应滤波中参考信号选取难的 问题,将该方法用于脉搏信号降噪,得到了满意的去噪效果。-The text features based on wavelet analysis, proposed an adaptive multi-wavelet transform for signal denoising method, this method not only