View Proposal #222
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| ID | 222 |
|---|---|
| First Name | K |
| Last Name | Stroyan |
| Institution | University of Iowa |
| Speaker Category | faculty |
| Title of Talk | A new formula for depth perception |
| Abstract | When you are moving, such as walking, and fix your gaze at an object ahead, but off to the side, say a tree, stationary objects behind the tree seem to move in the same direction as you, while objects in front seem to move in the opposite direction. This is a monocular cue to depth, as opposed to binocular disparity - the difference in the images in your two (separated) eyes. Working with a vision researcher, we have found a simple new formula for depth in terms of motion. Work is in progress in his laboratory to see how much of the geometric information contained in the formula is actually used by humans. The proof of the formula is a very simple application of trigonometry and infinitesimal calculus. We were led to discover it through experimental intuition and some interactive programs that we will demonstrate. |
| Subject area(s) | Trig, Calculus, and Vision |
| Suitable for undergraduates? | Yes |
| Day Preference | |
| Computer Needed? | |
| Bringing a laptop? | N |
| Overhead Needed? | N |
| Software requests | Mathematica Player (free) or Mathematica 6.0+ |
| Special Needs | |
| Date Submitted | 3/6/2008 |
| Year | 2008 |