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Integrated Array of Image Sensors


Stanford Reference:

99-120


Abstract

The active imaging method (AIM) makes it possible to measure images from a controlled light source even in the presence of uncontrolled, stray ambient light. The method consists of an emitter, which emits temporally modulated light onto the scene or object, and a detector, which measures the reflected light. From the detected light, a processing means, such as a simple filter, distinguishes the reflected light from the controlled emitter from that of stray ambient light. In this way, AIM can calculate accurate scene properties, including ambient illumination and surface reflectance, for use in subsequent color image processing.



Applications


  • Color balancing and correction algorithms for digital or film images
  • Image processing of still and motion photography
  • Automated inspection tasks

Advantages


  • Eliminates effects of stray ambient light
  • All date for image recreation obtained within single image sequence
  • Can obtain color imaging from monochrome sensor

Publications


  • F. Xiao, J. DiCarlo, P. Catrysse and B. Wandell, Image Analysis using Modulated Light Sources, In Proceedings of the SPIE Electronic Imaging '2001 conference, Vol. 4306, San Jose, CA, January 2001.

Innovators & Portfolio



Patent Status



Date Released

 1/9/2003 12:00
 

Licensing Contact


Mona Wan, Senior Associate Director, Life Science
650-498-0902 (Business)
Request Info

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Related Keywords


imaging   digital imaging   PS: semiconductor