alpha channel with stereo cam ? at DVinfo.net

Stephan Loehr · June 5th, 2008, 05:39 AM

Hi ! Is it possible to extract the alpha channel/ depth channel of a film sequence when using a 3d camera rig for recording ?

Tim Dashwood · June 5th, 2008, 08:41 AM

Do you mean green screen keying or alpha channel on a pre-matted sequence? Can you explain the application?

If you are handling the left and right as two separate sequences then there shouldn't be any additional issues... just twice as much work.

Nicky Campos · June 5th, 2008, 12:45 PM

Yes its possible, you need software to compute depth from stereo images. Ive searched furiously and found only the SVS software from Videre design.

http://www.videredesign.com/vision/svs.htm

They want $600 and the examples look decent, Im just itching to buy it once I get $600 lying around. If you got plenty cash then use The Foundrys Furnace plugin called zdepth $4400.

If anyone knows other alternatives please let us know.

June 5th, 2008, 05:39 AM	#1
Stephan Loehr New Boot Join Date: Dec 2005 Posts: 14	alpha channel with stereo cam ? Hi ! Is it possible to extract the alpha channel/ depth channel of a film sequence when using a 3d camera rig for recording ?

June 5th, 2008, 08:41 AM	#2
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 3,637	Do you mean green screen keying or alpha channel on a pre-matted sequence? Can you explain the application? If you are handling the left and right as two separate sequences then there shouldn't be any additional issues... just twice as much work. __________________ Tim Dashwood

June 5th, 2008, 12:45 PM	#3
Nicky Campos Regular Crew Join Date: Jan 2008 Location: Johannesburg, South Africa Posts: 35	Yes its possible, you need software to compute depth from stereo images. Ive searched furiously and found only the SVS software from Videre design. http://www.videredesign.com/vision/svs.htm They want $600 and the examples look decent, Im just itching to buy it once I get $600 lying around. If you got plenty cash then use The Foundrys Furnace plugin called zdepth $4400. If anyone knows other alternatives please let us know.