PPT Slide

Single Camera Calibration

Stanford University School of Engineering

Department of Mechanical Engineering

XX February 2000

Underwater data collection compensates out index of refraction differences

Index of refraction for water = 1.33

h

CCD

Image plane

f

Calibration fix #2

Previous slide

Next slide

Back to first slide

View graphic version

• Show focal distance problem with optics
• Ray Tracing technique has been derived but for specific lens system (Li et al, 1997) (Univ. of Calgary)
• One approach is to do a math model for each underwater camera and then calibrate. Or come up with a general model that a calibration fits with a reasonable error.
  • present current state of calibration at MBARI and future development