A Composite Illumination Invariant Color Feature and Its Application to Partial Image Matching
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概要
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In camera-based object recognition and classification, surface color is one of the most important characteristics. However, apparent object color may differ significantly according to the illumination and surface conditions. Such a variation can be an obstacle in utilizing color features. Geusebroek et al.'s color invariants can be a powerful tool for characterizing the object color regardless of illumination and surface conditions. In this work, we analyze the estimation process of the color invariants from RGB images, and propose a novel invariant feature of color based on the elementary invariants to meet the circular continuity residing in the mapping between colors and their invariants. Experiments show that the use of the proposed invariant in combination with luminance, contributes to improve the retrieval performances of partial object image matching under varying illumination conditions.
著者
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KAMEYAMA Keisuke
Faculty of Engineering, Information and Systems, University of Tsukuba
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KAMEYAMA Keisuke
Faculty of Engineering, Informationand Systems, University of Tsukuba
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KOBAYASHI Masaki
Canon Inc.
関連論文
- A Composite Illumination Invariant Color Feature and Its Application to Partial Image Matching
- Image Feature Extraction and Similarity Evaluation using Higher-Order Moment Kernels (ニューロコンピューティング)