Authors:
Matis Hudon
1
;
Adrien Gruson
2
;
Paul Kerbiriou
3
;
Rémi Cozot
2
and
Kadi Bouatouch
2
Affiliations:
1
Rennes 1 University and Technicolor, France
;
2
Rennes 1 University, France
;
3
Technicolor, France
Keyword(s):
Depth Enhancement, Depth Discontinuity, Time Multiplexed Illumination, Image Pairs, Pure Flash Image.
Related
Ontology
Subjects/Areas/Topics:
Applications
;
Computational Photography
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Image Enhancement and Restoration
;
Image Formation and Preprocessing
;
Image-Based Modeling
;
Pattern Recognition
;
Rendering
;
Software Engineering
Abstract:
In this paper we propose a method for recovering the shape (geometry) and the diffuse reflectance from an
image (or video) using a hybrid setup consisting of a depth sensor (Kinect), a consumer camera and a partially
controlled illumination (using a flash). The objective is to show how combining RGB-D acquisition with
a sequential illumination is useful for shape and reflectance recovery. A pair of two images are captured:
one non flashed (image under ambient illumination) and a flashed one. A pure flash image is computed by
subtracting the non flashed image from the flashed image. We propose an novel and near real-time algorithm,
based on a local illumination model of our flash and the pure flash image, to enhance geometry (from the noisy
depth map) and recover reflectance information.