Title
Entropy-difference based stereo error detection
Abstract
Stereo depth estimation is error-prone; hence, effective error detection methods are desirable. Most such existing methods depend on characteristics of the stereo matching cost curve, making them unduly dependent on functional details of the matching algorithm. As a remedy, we propose a novel error detection approach based solely on the input image and its depth map. Our assumption is that, entropy of any point on an image will be significantly higher than the entropy of its corresponding point on the image's depth map. In this paper, we propose a confidence measure, Entropy-Difference (ED) for stereo depth estimates and a binary classification method to identify incorrect depths. Experiments on the Middlebury dataset show the effectiveness of our method. Our proposed stereo confidence measure outperforms 17 existing measures in all aspects except occlusion detection. Established metrics such as precision, accuracy, recall, and area-under-curve are used to demonstrate the effectiveness of our method.
Year
DOI
Venue
2017
10.1109/IVMSPW.2016.7528177
2016 IEEE 12th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP)
Keywords
DocType
Volume
Cost function,Image de-noising,Image texture analysis,Information entropy,Stereo image processing
Journal
abs/1711.10412
ISBN
Citations 
PageRank 
978-1-5090-1930-4
0
0.34
References 
Authors
11
4
Name
Order
Citations
PageRank
Subhayan Mukherjee100.34
Irene Cheng228335.18
Ram Mohana Reddy Guddeti3488.76
Anup Basu474997.26