From the notebook
Posts from October 2008.
to disscus in Santa fe
Face detection setup options:
- IR setup: tracking region position and size correspondences detected frontal face patterns
- Stereoscopic Setup: depth estimation, segmentation of the user from other people and background objects
optical axis as used by the display and send estimate of the 3-D head position of the user to the application.
- Zcamera: depth estimation, segmentation of the user from other people and background objects
Camera position:
placing camera so it shares the same optical axis as the video display.
-half silvered mirror? 45 degree half mirror so the user can view the screen also looking straight into the camera.
Video display
- Size of the screen and model of the screen.
- lenticular magnifier and a smaller flat panel display just an inch or so behind.
- Other materials
Content of the display
- 3D deformable face model
- 3D model from a 2D picture
- Use prerecorded video
Additional light control
to do:
Short video of ideal interaction to work on the first stage of the tracking system
about the IR setup….
For the IR setup I was planning to use a security camera Sony SSC-M183 black&white CCD Camera with an infrared filter 75mm Wratten-87C over the ccd and IR illuminators. Unfortunately I’m not going to be able to bring the setup to Santa Fe because I’m missing the Video-to-FireWire converter.
Face tracking + 3D object example
Basic example of a 3d object rotation being controlled by the face tracking coordinates.
Stereo Vision Options
I’m excited about trying the Z camera in Santa fe and to be able to play with its software.
It seems like it could be an interesting option.
Meanwhile I’ve been reading about the possibility to use a stereoscopic camera.
I did a price request for a BumbleBee camera. The BumbleBee seems to be a good option. It solves the challenging problem of alignment and calibration of both cameras.
It’s also possible to make it work with OF, but accordingly with Golan Levin experience, although you can get disparity maps the amount of noise makes very different to implement a tracking system.
The price of the one that I was looking for (640 x 480 Bumblebee2) is $1895 + $100 for the development kit.