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Proceedings Article

Integrating lens design with digital camera simulation

[+] Author Affiliations
Patrick Y. Maeda

Palo Alto Research Ctr. (USA)

Peter B. Catrysse, Brian A. Wandell

Stanford Univ. (USA)

Proc. SPIE 5678, Digital Photography, 48 (April 04, 2005); doi:10.1117/12.588153
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From Conference Volume 5678

  • Digital Photography
  • Nitin Sampat; Jeffrey M. DiCarlo; Ricardo J. Motta
  • San Jose, CA | January 17, 2005

abstract

We describe a method for integrating information from lens design into image system simulation tools. By coordinating these tools, image system designers can visualize the consequences of altering lens parameters. We describe the critical computational issues we addressed in converting lens design calculations into a format that could be used to model image information as it flows through the imaging pipeline from capture to display. The lens design software calculates information about relative illumination, geometrical distortion, and the wavelength and field height dependent optical point spread functions (PSF). These data are read by the image systems simulation tool, and they are used to transform the multispectral input radiance into a multispectral irradiance image at the sensor. Because the optical characteristics of lenses frequently vary significantly across the image field, the process is not shift-invariant. Hence, the method is computationally intense and includes a number of parameters and methods designed to reduce artifacts that can arise in shift-variant filtering. The predicted sensor irradiance image includes the effects of geometric distortion, relative illumination, vignetting, pupil aberrations, as well as the blurring effects of monochromatic and chromatic aberrations, and diffraction.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Patrick Y. Maeda ; Peter B. Catrysse and Brian A. Wandell
"Integrating lens design with digital camera simulation", Proc. SPIE 5678, Digital Photography, 48 (April 04, 2005); doi:10.1117/12.588153; http://dx.doi.org/10.1117/12.588153


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