基于小波變換的視覺信號特征提取方法
The feature extraction method of visual signal based on wavelet transforming
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摘要: 該文提出了一種用于視覺信號特征提取的新方法將CCD獲取的圖像投影后的信號波形進行小波變換。當(dāng)小波的尺度選擇恰當(dāng)時,小波變換結(jié)果的零交叉點可用于確定圖像的中心。實驗結(jié)果表明,該方法相對于其他方法對隨機誤差的干擾具有更強的魯棒性。
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關(guān)鍵詞:
- 圖像投影; 小波變換; 零交叉點; 特征提取
Abstract: A new method of feature extraction for visual signal is presented in this paper. The signal of the image projection, which is acquired by CCD, is transformed with wavelet. And the zero cross point of transform is located at the center of the image when the scale of wavelet is suitable. The experiment shows that the method possesses stronger robustness for stochastic error disturbance than other methods do. -
左建中等,集成電路管腳尺寸自動檢測系統(tǒng)的研究與實現(xiàn),制造業(yè)自動化,2000,22(9),28-29[2]程正興,小波分析算法與應(yīng)用,西安,西安交通大學(xué)出版社,1998,20-52. -
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