Root-mean square error in passive autofocusing and 3D shape recovery

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 2909, Issue , 1997, Pages 162-177

  Subbarao, Murali ^a   Tyan, Jenn Kwei ^a  

^a Stony Brook University   (United States)

Author keywords

Autofocusing; Focus measures; Noise sensitivity; Shape from focus

Indexed keywords

ACOUSTIC NOISE; CAMERA LENSES; IMAGE ACQUISITION; IMAGE ENHANCEMENT; IMAGING SYSTEMS; INSTRUMENT SCALES; PIEZOELECTRIC ACTUATORS; SENSITIVITY ANALYSIS; SHAPE OPTIMIZATION;

3D SHAPE MEASUREMENTS; 3D SHAPE RECOVERIES; 3D SHAPES; AUTOFOCUSING; DIGITAL IMAGES; ELECTRONIC NOISES; EXPLICIT EXPRESSIONS; FOCUS MEASURES; IMAGE FOCUSES; MEAN SQUARES; MEASURED VALUES; NOISE SENSITIVITY; PASSIVE AUTOFOCUSING; RMS ERRORS; SHAPE-FROM-FOCUS; STANDARD DEVIATIONS; UNCERTAINTY MEASURES;

THREE DIMENSIONAL;

EID: 21844467900     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.263320     Document Type: Conference Paper

References (10)

1. E. Krotkov, "Focusing", International Journal of Computer Vision, 1, 223-237, 1987.
2. G. Ligthart and F. Groen, "A Comparison of Different Autofocus Algorithms", International Conference on Pattern Recognition, pp. 597-600,1982.
3. Nayar, S.K., "Shape from Focus System" Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition, Champaign, Illinois, pp. 302-308 (June 1992).
4. M. Subbarao, T. Choi, and A. Nikzad, "Focusing Techniques", Journal of Optical Engineering, Vol. 32 No. 11, pp. 2824-2836, November 1993.
5. M. Subbarao, and M. C. Lu, "Computer Modeling and Simulation of Camera Defocus", Machine Vision and Applications, (1994) 7, pp. 277-289.
6. M. Subbarao, and J.K. Tyan, "The Optimal Focus Measure for Passive Autofocusing and Depth-from-Focus", Proceedings of SPIE conference on Viedometrics IV, Philadelphia, Oct 1995.
7. M. Subbarao, and J.K. Tyan, "The Optimal Focus Measure for Passive Autofocusing and Depth-from-Focus", Tech. Report No. 96.07.01, Computer Vision Laboratory, Dept. of Electrical Engineering, SUNY, Stony Brook (1996).
8. Schlag, J.F., Sanderson, A.C., Neumann, C.P., and Wimberly, F.C., "Implementation of Automatic Focusing Algorithms for a Computer Vision System with Camera Control", Tech. Report CMU-RI-TR-83-14, Carnegie Mellon University (August 1983).
9. H. H. Hopkins, "The frequence response of a defocused optical system" Proceeding Royal Society of London, A 231, 1955, pp 91-103.
10. A. Papoulis, "Probability, Random Variables, and Stochastic Processes", McGraw-Hill Book Company, the 3rd, 1991.