Perceiving Object Shape from Specular Highlight Deformation, Boundary Contour Deformation, and Active Haptic Manipulation
Haptic and visual ‘contours’ It is well known that motion facilitates the visual perception of solid object shape, particularly when surface texture or other identifiable features (e.g., corners) are present. Conventional models of structure-from-motion require the presence of… Read More
Haptic shape discrimination and interhemispheric communication
Touching. In three experiments participants haptically discriminated object shape using unimanual (single hand explored two objects) and bimanual exploration (both hands were used, but each hand, left or right, explored a separate object). Such haptic exploration (one versus… Read More
Creating noisy stimuli
So much noise. A method for creating a variety of pseudo-random `noisy’ stimuli that possess several useful statistical and phenomenal features for psychophysical experimentation is outlined. These stimuli are derived from a pseudo-periodic function known as multidimensional noise…. Read More
Perceptual representation of visible surfaces
What is a surface, anyway? Two experiments are reported in which we examined the ability of observers to identify landmarks on surfaces from different vantage points. In Experiment 1, observers were asked to mark the local maxima and… Read More
Complicated sports and movie watching
While I was on sabbatical in Gießen I was thrilled to have super (über?) fast internet and a nice television. Unfortunately for me, the good folks at Apple / Netflix / HBO / etc, don’t want people in… Read More
Gromitcam – in stereo
Back in 1997 I made a stereo webcam for keeping track of my dog, Gromit. I was rolling through some archives and found an image from January 1998. It used two Logitech golf-ball cams and a bunch of… Read More
You can take the boy out of architecture school
This is a rodent enclosure for behavioral experiments. We printed the main cage, post retainers and lid with ABS from our uPrint and the ‘stay off the roof’ roof with our Formlabs in a nice, slick durable resin…. Read More
Testre le embed das iframe
This is a test of an embedded iframe of fun and joy. Please excuse anything annoying. [advanced_iframe securitykey=”c8f174978f95886638babe6f19ad6e691566779b” src=”https://www.wolframcloud.com/objects/daf49e5e-2e03-4c1e-b1c4-b5750bbd5fdc?_view=frameless” width=”100%” height=”600″] Most sincerely.
Bouncing Balls
A phase-space plot of height v. exaggeration for two different types of balls with two different coefficients of restitution. Nothing important here, just a fun looking plot.
Fencing Eyetracking Data
A while back, we did a nice study on eye movements during fencing. This is a figure from one of the posters, we should finish this and publish it some day. Should do a lot of things. … Read More