Saturday, March 31, 2007
Monday, March 19, 2007
Monday, March 12, 2007
Saturday, March 03, 2007
Aperture problem
The motion of a homogeneous contour is locally ambiguous. This is so because a motion sensor has a finite receptive field: it "looks" at the world through something like an aperture (Hildreth, 1984,1987). Within that aperture, different physical motions are indistinguishable.
a comprehensive video about aperture problem
a comprehensive video about aperture problem
Friday, March 02, 2007
Damn good way to speed up Mail
1. Quit Mail.
2. Open Terminal.
3. Type the following:
cd ~/Library/Mail
sqlite3 Envelope\ Index
sqlite> vacuum subjects;
When the sqlite prompt returns, type Control-D to exit.
Restart Mail and enjoy the extra speed.
2. Open Terminal.
3. Type the following:
cd ~/Library/Mail
sqlite3 Envelope\ Index
sqlite> vacuum subjects;
When the sqlite prompt returns, type Control-D to exit.
Restart Mail and enjoy the extra speed.
