Proceedings Article10.1109/ICCV.2001.937503
Precise sub-pixel estimation on area-based matching
Masao Shimizu,Masatoshi Okutomi +1 more
- 07 Jul 2001
- Vol. 1, pp 90-97
126
TL;DR: This paper analyzes the sub-pixel estimation error by using an approximate image function and three kinds of similarity measures for matching and proposes a new algorithm to greatly reduce sub- pixel estimation error.
read more
Abstract: Area-based matching is a common procedure in various fields such as image-based measurements, stereo image processing, and fluidics. Sub-pixel estimation using parabola fitting over three points with their similarity measures is also a common method to increase the resolution of matching. However, few investigations or studies concerning the characteristics of this estimation have been reported. In this paper we have analyzed the sub-pixel estimation error by using an approximate image function and three kinds of similarity measures for matching. The results illustrate some inherently problematic phenomena such as so called "pixel-locking". In addition to this, we propose a new algorithm to greatly reduce sub-pixel estimation error. This method is independent from the similarity measure and quite simple to implement. The advantage of our novel method is confirmed through experiments using three different types of images.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
A taxonomy and evaluation of dense two-frame stereo correspondence algorithms
TL;DR: This paper has designed a stand-alone, flexible C++ implementation that enables the evaluation of individual components and that can easily be extended to include new algorithms.
Stereoscopic Scene Flow Computation for 3D Motion Understanding
TL;DR: A variational framework for the estimation of stereoscopic scene flow, i.e., the motion of points in the three-dimensional world from stereo image sequences, which partially decouple the depth estimation from the motion estimation, which has many practical advantages.
230
Computer Vision on Mars
Larry Matthies,Mark Maimone,Andrew E. Johnson,Yang Cheng,Reg G. Willson,Carlos Y. Villalpando,Steve Goldberg,Andres Huertas,Andrew Neil Stein,Anelia Angelova +9 more
TL;DR: The design and performance of computer vision algorithms used on Mars in the NASA/JPL Mars Exploration Rover (MER) mission was a major step forward in the use ofComputer vision in space.
Patent
Method for creating high resolution color image, system for creating high resolution color image and program creating high resolution color image
Masatoshi Okutomi,Tomomasa Goto +1 more
- 08 Oct 2003
TL;DR: In this paper, a high-resolution color image reconstruction method based on color mosaic was proposed, in which an increase in resolution and demosaicing are performed at the same time.
177
Surfaces with occlusions from layered stereo
M.H. Lin,Carlo Tomasi +1 more
TL;DR: Experimental results demonstrate that the proposed binocular stereo algorithm significantly improves upon the state of the art for scenes consisting of smooth surfaces.
References
Advanced optimization of correlation imaging velocimetry algorithms
A. Fincham,G. Delerce +1 more
TL;DR: Significant developments aimed at improving the performance of digital particle imaging velocimetry (DPIV) type techniques are presented, and alternative methods of sub-pixel positioning are presented along with a new diagnostic tool for evaluating the severity of peak-locking errors in actual laboratory data.
Effect of Sensor Geometry on the Performance of PIV Interrogation
Jerry Westerweel
- 01 Jan 2000
TL;DR: In this article, the effect of sensor geometry on the performance of PIV interrogation was investigated, and it was shown that sensors with a high fill ratio have better performance than sensors with low fill ratio.
Related Papers (5)
Ramin Zabih,John Iselin Woodfill +1 more
- 07 May 1994
Qingxiong Yang,Ruigang Yang,James Davis,David Nister +3 more
- 17 Jun 2007