Shape from Shading on Textured Cylindrical Surface - Restoring Distorted Scanner Images of Unfolded Book Surfaces

3D Shape Reconstruction of Unfolded Book Surface from a Scanner Image -Shape from Shading with Interreflections under Proximal Light Source

In this paper, we propose an efficient and stable algorithm to recover the 3D shape of an unfolded curved book surface from the shading information of a scanner image. This shape from shading problem in a real world environment has a global and complicated interdependency among the shape, the depth and the albcdo distribution of the book surface. Hence, the ovcrall surface shape must be recover...

Recovering Shape of Unfolded Books Surface from a Scanner Image Using Eigenspace Method

In this study, we address the problem of recovering the cross section shape of an unfolded book from the image of its surface taken by the image scanner. To attack this problem, we propose the practical method using the eigenspaces which are constructed by some shape and intensity profile da ta L: Light SOW of the book surface to reduce the data size. In this M: Mirmr C: Lens method, the book s...

Shape from Shading with Interreflections under Proximal Light Source: 3D Shape Reconstruction of Unfolded Book Surface from a Scanner Image

Transform your Digital Camera into a Flatbed Scanner

We propose to extend the use of a digital camera to a new application, which consists basically in transforming it into a flatbed scanner. Our approach consists in simulating the flattening of warped documents, by means of computer vision techniques. In particular, with regard to the digitization of a book, we show that the drawbacks related to the use of a scanner can be bypassed. The correcti...

Using Shading and a 3D Template to Reconstruct Complex Surface Deformations

The goal of Shape-from-Template (SfT) is to register and reconstruct the 3D shape of a deforming surface from a single image and a known deformable 3D template. Most SfT methods use only motion information and require well-textured surfaces which deform smoothly. Consequently they are unsuccessful for poorly-textured surfaces with complex deformations such as creases. We propose to combine shad...