Japanese / English


論文の言語 英語
著者 Tomohiro Nakai, Koichi Kise, and Masakazu Iwamura
論文名 Camera-based document image mosaicing using LLAH
論文誌名 Proc. Document Recognition and Retrieval XVI (Proc. SPIE Volume 7247)
発表番号 7247-25
年月 2009年1月
要約 In this paper we propose a mosaicing method of camera-captured document images. Since document images captured using digital cameras suffer from perspective distortion, their alignment is a difficult task for previous methods. In the proposed method, correspondences of feature points are calculated using an image retrieval method LLAH. Document images are aligned using a perspective transformation parameter estimated from the correspondences. Since LLAH is invariant to perspective distortion, feature points can be matched without compensation of perspective distortion. Experimental results show that document images captured by a digital camera can be stitched using the proposed method.