DocumentCode :
3696712
Title :
Dense Depth and Albedo from a Single-Shot Structured Light
Author :
Hyowon Ha;Jaesik Park;In So Kweon
Author_Institution :
Korea Adv. Inst. of Sci. &
fYear :
2015
Firstpage :
127
Lastpage :
134
Abstract :
Single-shot structured light scanning has been actively investigated as it can recover accurate geometrical shape even on a dynamic scene. Since many single-shot approaches focus on improving depth accuracy, recovering the intrinsic properties of the scene such as albedo and shading are also valuable. In this paper, we propose a novel method that reconstructs not only the metric depth but also the intrinsic properties from a single structured light image. We extend the conventional color structured light model to embrace the Lambertian shading model. By using a color phase-shifting pattern, we parameterize the captured image with only two variables, albedo and depth. For an initial solution, a simple but powerful method to decompose sinusoids from the input image is presented. We formulate a non-linear cost function and jointly optimize albedo and depth efficiently by calculating analytic Jacobian. We demonstrate that our algorithm reasonably works on various real-world objects which exhibit challenging surface reflectance and albedo.
Keywords :
"Image color analysis","Periodic structures","Cameras","Optimization","Three-dimensional displays","Color","Jacobian matrices"
Publisher :
ieee
Conference_Titel :
3D Vision (3DV), 2015 International Conference on
Type :
conf
DOI :
10.1109/3DV.2015.22
Filename :
7335477
Link To Document :
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