lec23_compphoto2 - Lecture 23: Computational photography,...

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Unformatted text preview: Lecture 23: Computational photography, Part 2 CS6670: Computer Vision Noah Snavely photomatix.com Announcements Final project midterm reports due today to CMS by 11:59pm Final project presentation times The ultimate camera Infinite resolution Infinite zoom control Desired object(s) are in focus No noise No motion blur Infinite dynamic range (can see dark and bright things) ... Creating the ultimate camera The analog camera has changed very little in >100 yrs were unlikely to get there following this path More promising is to combine analog optics with computational techniques Computational cameras or Computational photography This lecture will survey techniques for producing higher quality images by combining optics and computation Common themes: take multiple photos modify the camera Capture and composite several photos Works for field of view resolution signal to noise dynamic range Focus But sometimes you can do better by modifying the camera Focus Suppose we want to produce images where the desired object is guaranteed to be in focus? Or suppose we want everything to be in focus? Light field camera [Ng et al., 2005] http://www.refocusimaging.com/gallery/ Conventional vs. light field camera Conventional camera Light field camera Light field camera Rays are reorganized into many smaller images corresponding to subapertures of the main lens Prototype camera...
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This note was uploaded on 09/27/2010 for the course CS 667 at Cornell University (Engineering School).

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lec23_compphoto2 - Lecture 23: Computational photography,...

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