Monthly Archives: February 2009

Sensor Crop Factor

From – http://en.wikipedia.org/wiki/Image_sensor_format#Table_of_sensor_sizes

Table of sensor sizes

Since inch-based sensor formats are not standardized, exact dimensions may vary, but those listed are typical.[3]

Type 1/4″ 1/3.6″ 1/3.2″ 1/3″ 1/2.7″ 1/2.5″ 1/2″ 1/1.8″ 1/1.7″ 2/3″ 1″ 4/3″ Canon APS-C Nikon DX Canon APS-H 35mm Leica S2
Diagonal (mm) 4.50 5.00 5.68 6.00 6.72 7.18 8.00 8.93 9.50 11.0 16.0 21.6 26.7 28.4 34.5 43.3 54
Width (mm) 3.60 4.00 4.54 4.80 5.37 5.76 6.40 7.18 7.60 8.80 12.8 17.3 22.2 23.6-.7 28.7 36 45
Height (mm) 2.70 3.00 3.42 3.60 4.04 4.29 4.80 5.32 5.70 6.60 9.6 13.0 14.8 15.5-.8 19.1 24 30
Area (mm2) 9.72 12.0 15.5 17.3 21.7 24.7 30.7 38.2 43.3 58.1 123 225 329 366-374 548 864 1350
Crop factor[4] 9.62 8.65 7.61 7.21 6.44 6.02 5.41 4.84 4.55 3.93 2.70 2.00 1.62 1.52 1.26 1.0 0.8

DIGITAL CAMERA SENSOR SIZES

http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm

New release of OpenCV

I just found out that the new release (1.1pre1) of OpenCV has already integrated many state of art algorithms, such as graph-cut stereo matching algorithm [kolmogorov03], SURF (a new feature detection method surperior that SIFT), stereo image rectification and etc. Check out the document and find more.