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مجله بین المللی بینایی کامپیوتر 2013
جزئیات رویداد
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  • recognizing materials using perceptually inspired features

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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    • شماره تماس دبیرخانه رویداد: -
     our world consists not only of objects and scenes but also of materials of various kinds. being able to recognize the materials that surround us (e.g., plastic, glass, concrete) is important for humans as well as for computer vision systems. unfortunately, materials have received little attention in the visual recognition literature, and very few computer vision systems have been designed specifically to recognize materials. in this paper, we present a system for recognizing material categories from single images. we propose a set of low and mid-level image features that are based on studies of human material recognition, and we combine these features using an svm classifier. our system outperforms a state-of-the-art system (varma and zisserman, tpami 31(11):2032–2047, 2009) on a challenging database of real-world material categories (sharan et al., j vis 9(8):784–784a, 2009). when the performance of our system is compared directly to that of human observers, humans outperform our system quite easily. however, when we account for the local nature of our image features and the surface properties they measure (e.g., color, texture, local shape), our system rivals human performance. we suggest that future progress in material recognition will come from: (1) a deeper understanding of the role of non-local surface properties (e.g., extended highlights, object identity); and (2) efforts to model such non-local surface properties in images.

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