...- Object-based image retrieval, DCT domain, Image indexing, Image classification. [gap=259]关键词：基于对象的图像检索，DCT域，图像检索，图像分类。
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提出了一种空间上下文描述与匹配方法，有效地提高了基于视觉关键词的图像检索中目标对象的可区分性。
A new method of describing and matching spatial context is proposed to effectively improve the distinguishability of objects in visual words-based image retrieval.
针对复杂对象的图像检索，提出一种基于逻辑运算的概率模型。
A logical operation-based probability model for image retrieval was presented.
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