Mosaics of Japanese Picture Scrolls

We propose scveral new techniques for mosaic-ing images of Japanese picture scrolls. Previous methods cannot accurately stitch these images, because they are too wide. To solve this problem , we propose three techniques that can stitch without any seams. The first technique adjusts its height of each image in advance. The second technique uses planar projective transformation among three images, not two. These techniques enable us to stitch the images, considering perspective distortion. The third technique warps the image locally in addition to performing global geometric transformation. This technique can handle three-dimensional distortion caused by the roughness of the paper. We show the effectiveness of these techniques by experiments on real images.