Publication
Iterative Color Equalization for Increased Applicability of Structured Light Reconstruction
Torben Fetzer; Gerd Reis; Didier Stricker
In: Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Apllications |. International Conference on Computer Vision Theory and Applications (VISAPP-2020), Valletta, Malta, SCITEPRESS, 2020.
Abstract
The field of 3D reconstruction is one of the most important areas in computer vision. It is not only of theoretical
importance, but is also increasingly used in practice, be it in reverse engineering, quality control or
robotics. A distinction is made between active and passive methods, depending on whether they are based
on active interactions with the object or not. Due to the accuracy and density of the reconstructions obtained,
the structured light approach, whenever applicable, is often the method of choice for industrial applications.
Nevertheless, it is an active approach which, depending on material properties or coloration, can lead to problems
and fail in certain situations. In this paper, a method based on the standard structured light approach
is presented that significantly reduces the influence of the color of a scanned object. It improves the results
obtained by repeated application in terms of accuracy, robustness and general applicability. Especially in
high-precision reconstruction of small structures or high-contrast colored and specular objects, the technique
shows its greatest potential. The advanced method requires neither pre-calibrated cameras or projectors nor
information about the equipment. It is easy to implement and can be applied to any existing scanning setup.