Keck multi-camera capture facility

• Current Keck capture facility
• Data collection
• Contact

Current Keck capture facility

The Keck lab consists of 32 gray-scale cameras connected to 16 workstations in fixed positions. The volume of the room is approximately 7m x 7m x 3m. It is possible to perform synchronised capture on all (or a subset) of the cameras at frame rates ranging from 1 to 45 fps (frames per second). The images are of 648x484 resolution gray scale with a depth of 8bpp (bits per pixel).

A model of the laboratory and a subject is illustrated in the following image. A video sequence of the model is also available.

Some images captured in the KECK lab

An introduction to the Keck lab can be found at Keck Laboratory for the Analysis of Visual Motion. An important starting point would be the Technical Report, Design and Implementation of the University of Maryland Keck Laboratory for the Analysis of Visual Movement. A Google Search with "keck laboratory site:umd.edu" may yield some more information. I currently work with Fritz Mccall to collect data. There are some others as well who also use the laboratory.

Technical reports and other information:

The Intranet Page can be accessed from the University of Maryland only.

Data collection

There are 16 pairs of cameras attached to 16 workstations. The cameras capture grayscale images at 480x640 resolution. The cameras are arranged at equidistant points on the circumference of two circles at heights of 1m and 2m.

Calibration

We have a calibration set up, where we use an LED calibration tool to obtain extrinsic and intrinsic calibration parameters (Tomas Svoboda's algorithm). We use an external calibration device to obtain scale and world coordinate system.

Contact

Fritz McCall is the chief of computing staff for UMIACS.

• Aravind Sundaresan
• James Sherman Jr
• Fritz Mccall