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使用局部特征之间的成对统计学对食物识别

Food Recognition Using Statistics of Pairwise Local Features
课程网址: http://videolectures.net/cvpr2010_yang_frus/  
主讲教师: Shulin (Lynn) Yang
开课单位: 华盛顿大学
开课时间: 2010-07-19
课程语种: 英语
中文简介:
食物识别是困难的,因为食物是可变形的物体,在外观上表现出显着的变化。我们认为识别食物的关键是利用不同成分(例如三明治中的肉和面包)之间的空间关系。我们提出了食物项目的新表示,其计算通过图像的软像素级别分割计算的局部特征之间的成对统计学到八种成分类型。我们在多维直方图中累积这些统计量,然后将其用作判别分类器的特征向量。我们的实验表明,所提出的代表性在识别食物方面比现有方法更准确。
课程简介: Food recognition is difficult because food items are deformable objects that exhibit significant variations in appearance. We believe the key to recognizing food is to exploit the spatial relationships between different ingredients (such as meat and bread in a sandwich). We propose a new representation for food items that calculates pairwise statistics between local features computed over a soft pixellevel segmentation of the image into eight ingredient types. We accumulate these statistics in a multi-dimensional histogram, which is then used as a feature vector for a discriminative classifier. Our experiments show that the proposed representation is significantly more accurate at identifying food than existing methods.
关 键 词: 食物; 分割计算; 多维直方图
课程来源: 视频讲座网
最后编审: 2019-03-13:lxf
阅读次数: 88