Three-dimensional shape recovery from focused image surface

Author

Choi, Tae S. ; Asif, Muhammad ; Yun, Joungil

Author_Institution

Dept. of Mech., Kwangju Inst. of Sci. & Technol., South Korea

Volume

6

fYear

1999

fDate

15-19 Mar 1999

Firstpage

3269

Abstract

A new method for the three-dimensional shape recovery from image focus is proposed. The method is based on an approximation of the focussed image surface (FIS) by a piecewise curved surface which tracks the realistic FIS in image space. The piecewise curved surface is estimated by interpolation using the Lagrangian polynomial. The new method has been implemented on a prototype camera system. The experiments and their results are provided and discussed. The experimental results show that the new method gives more accurate results than the previous methods

Keywords

CCD image sensors; cameras; image sequences; interpolation; piecewise polynomial techniques; 3D shape recovery; CCD camera system; Lagrangian polynomial; approximation; camera calibration; computer vision; depth estimation; experimental results; focused image surface; image processing; image sequence; image space; interpolation; piecewise curved surface; prototype camera system; Cameras; Detectors; Extraterrestrial measurements; Focusing; Lenses; Mechatronics; Pixel; Prototypes; Shape measurement; Space technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.757539

Filename

757539