Now showing items 13-16 of 16

    • Quantification and Correction of Iris Color 

      Fan, Shaohua; Dyer, Charles; Hubbard, Larry (University of Wisconsin-Madison Department of Computer Sciences, 2003)
      A system has been developed that automatically extracts the iris region from photographs, computes the iris color in CIE u 'v ' diagram color space, and corrects the color based on a standard calibration target. This system ...
    • Recognizing Faces from Head Rotation 

      Guo, Guodong; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2004)
      A new approach for recognizing human faces is presented that uses video sequences of natural, uncontrolled head rotations to capture face motion and dynamic appearance characteristics. Unlike traditional methods for face ...
    • Research on Self Calibration Without Minimization 

      Manning, Russell; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2003)
      In this paper we present a new metric camera self-calibration algorithm that does not require the global minimization of an error function and can produce all legal solutions to the three-camera self-calibration problem ...
    • Spatial Resolution Enhancement of Video Using Still Images 

      Guo, Guodong; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2004)
      Images captured by digital video cameras usually have lower spatial resolution than digital still cameras. This paper addresses the problem of combining images from digital still cameras and video cameras to generate a ...