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中文摘要：
具有自适应性的方向局部二值描述符（SD--LBP）通过引入自适应对比性的阈值t增加对图像局部区域及局部纹理过渡区域信息的处理，使图像检索过程中产生的噪声对检索效果的影响达到最小．采用3组实验方案对SD—LBP算子与相关算子的检索效果进行了比较分析．实验结果显示，本文算子在保持CS—LBP算子数据维数不变的条件下，对图像噪声处理更具鲁棒性，同时在检索效果、视觉特性等方面具有明显的优势．
英文摘要：
The self--adaptive direction local binary operator （SD--LBP） increases the information processing of the image local region and the transition region of image texture, so that the impact of image noise reaches a minimum value. Three groups of experimental program are used to analyze the retrieval performance of the SD--LBP operator and other operators. The image retrieval results based on texture spectrum show that when the operator keeps the CS--LBP data dimensions unchanged, the SD--LBP operator has stronger robustness in the processing of image noise, and it also has obvious advantages in image retrieval efficiency and visual properties.
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