http://www.gedlee.com/Papers/papers.aspx http://www.gedlee.com/Papers/papers.aspx An introductory talk is http://www.gedlee.com/Papers/The%20Perception%20of%20

http://www.gedlee.com/Papers/papers.aspx http://www.gedlee.com/Papers/papers.aspx An introductory talk is http://www.gedlee.com/Papers/The%20Perception%20of%20Distortion.pdf http://www.gedlee.com/Papers/The%20Perception%20of%20Distort... Is the real expert on both linear and non-linear distortion. The link contains links to all of his papers that are available freely. End result is that linear distortion isn't much of a problem (we tend to ignore it), but non-linear distortion is a major issue.