一種具有旋轉(zhuǎn)不變性的壓縮域紋理圖像分類方法
Texture-image classification with rotation-invariance in compressed-domain
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摘要: 該文提出了一種具有旋轉(zhuǎn)不變性的、基于DCT壓縮域的紋理圖像分類方法。此方法主要是在DCT壓縮域中合理組織頻率系數(shù),使其具有與小波分解相類似的圖像多分辨率結(jié)構(gòu),由此設(shè)計了抗旋轉(zhuǎn)能力強的紋理圖像分類算法。這些操作直接在游程長編碼(RLE)形成的碼流上進行,處理的數(shù)據(jù)量較少,處理速度快。實驗結(jié)果表明,這種分類方法具有較高的準確性。
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關(guān)鍵詞:
- 壓縮域圖像處理; DCT變換; 紋理圖像分類; 旋轉(zhuǎn)不變性
Abstract: A novel method of texture-image classification with rotation-invariauce in DCT compressed-domain is proposed. By reordered the DCT coefficients for multi-resolution, the textnral features are extracted in DCT transformed-domain and these textural features can be used to classify texture-images in RLE bit-stream directly with rotation-invariancc. The experimental results demonstrate that texture-images can be classified at higher correct classification rate. -
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