Title :
Simultaneous Estimation of Super-Resolved Image and 3D Information using Multiple Stereo-Pair Images
Author :
Kimura, Kazuto ; Nagai, Takayuki ; Nagayoshi, Hiroto ; Sako, Hiroshi
Author_Institution :
Univ. of Electro-Commun., Tokyo
fDate :
Sept. 16 2007-Oct. 19 2007
Abstract :
This paper examines a simultaneous estimation of both high resolution (high accuracy) 3D information and high-resolution image from multiple low-resolution stereo-pair images. The proposed method is based on the MAP (maximum a posteriori) framework and these two relevant problems (estimation of both high-resolution 3 D and intensity images) are incorporated into a unified cost function. Then the solution is obtained iteratively by a fixed point algorithm, which yeilds 3 D information while the high-resolution image is fixed, and vice versa. Each solution can be obtained by solving a linear equation. It can be expected that the proposed method improves accuracy of both 3 D information and high-resolution image simultaneously. Some experimental results are shown to validate the proposed method.
Keywords :
image reconstruction; image resolution; iterative methods; maximum likelihood estimation; stereo image processing; 3D information estimation; fixed point algorithm; high-resolution image; image reconstruction; iterative method; linear equation; maximum a posteriori estimation; multiple low-resolution stereo-pair images; super-resolved image; unified cost function; Cameras; Cost function; Equations; Image quality; Image reconstruction; Image resolution; Iterative algorithms; Photometry; Robot vision systems; Strontium; 3D reconstruction; MAP; Super-resolution;
Conference_Titel :
Image Processing, 2007. ICIP 2007. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-1437-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2007.4379854