I felt that my resume/curriculum vitae needed a quick way for people to get in touch with me, so I generated a QR code to encode my contact information. The QR code is scannable using a barcode reader app on most modern smartphones and will automatically pop up with my email and website contact information. I wanted the code to stand out, so, rather than embedding a logo/image into the center, I decided to go the psychophysical route and create a stereogram!
To view, focus eyes behind the image (diverge) or in front (converge, cross-eyed) so that the two images combine into one.
The stereogram was created by shifting a surface of pixels to the left in one image and right in the other (see an example in Wikipedia’s Random Dot Stereogram entry). When the two images are perceptually fused, you perceive the shift as a change in depth of the surface (more info in Wikipedia’s Autostereogram entry). The shift needed to be small enough that the codes would still be scannable (see Wikipedia again), but provide a convincing amount of depth.
I’ve also attached an animated version (also scannable!) using the left and right images as frames (See Lee (1970) Binocular stereopsis without spatial disparity for additional discussion):
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I’ve switched hosting providers, so I am currently transitioning my blog from the old provider to the new one. There are a number of broken links and a number of issues that I am trying to resolve (specifically with my old folder organization structure for JAL code), but hopefully this will all be cleaned up soon!
Update 01/09/2012: Still slowly transitioning the old posts to WordPress. Unfortunately, there isn’t an easy way (that I am aware of) to convert my old static-page format into the dynamic WordPress format, meaning that I have to upload each image individually and fix the code in the posts. So, unfortunately, it’s taking longer than I would prefer. In addition, I have been transitioning from YouTube to locally hosted videos, but unfortunately, that has been a battle as well. So, things are in a bit of disarray at this point, but will get better soon (I promise!).
Update 02/29/2012: Ok, done! (I hope…)
Repel produces a number of DEET products intended to scare away those little flying buggers that seem to be everywhere on these warm summer nights. While walking through my local Target, I noticed that there were varying concentrations available for purchase at my local store (please excuse the hand-held photos):
| 23% DEET |
40% DEET |
100% DEET |
 |
 |
 |
After looking a bit closer at the labels though, I noticed something peculiar in the “Active Ingredient” list…
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I have been neglecting semifluid.com for sometime now, but fear not! I will post new projects shortly as I try to dig through the comments. My time has been split between coursework (which is diminishing), research, and teaching. As I send revisions of papers back and forth with my advisor, I will devote time to updating the site. In the meantime, here are 3 videos demonstrating aftereffects that I created for my sensation and perception lab:
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I’ve updated my Resume webpage with a citation for a poster I presented on pilot work that I conducted at Rutgers University with Dr. Manish Singh and presented at this year’s Fall Cognitive Festival at Rutgers University:
Cholewiak, S.A., & Singh, M. (2008, September). Representation of variance in perceptual attributes. Poster session presented at the 1st Annual Rutgers Fall Cognitive Festival, New Brunswick, NJ.
I’ve updated my Resume webpage with a citation for another poster I presented on work that I conducted with Dr. Tan and presented at this year’s Perceptual Science Forum at Rutgers University:
Cholewiak, S.A., & Tan, H.Z. (2008, May). Haptic identification and information transfer of stiffness and force magnitude. Poster session presented at the 2nd Annual Rutgers Perceptual Science Forum, New Brunswick, NJ.
I recently purchased an iPhone and have wanted software that not only gave location information, like Erica Sadun’s wonderful findme software (or my, ahem, GPS projects), and sent phone information, like Fuel’s great WeeGee anti-theft package, but combined the tools into a more robust tracking utility. In other words, I wanted both location and information tracking in my iPhone. So, I set about combining the utilities into a script that will send location updates periodically to twitter and will email me with call history, SMS history, web history, location, and pictures if it is stolen. Cool!
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I’ve updated my Resume webpage with a link to a PDF for a poster I co-authored with Dr. Tan and presented at this year’s Haptics Symposium:
Cholewiak, S.A., Tan, H.Z., & Ebert, D.S. (2008). Haptic identification of stiffness and force magnitude. Proceedings of the Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 87-91.
