Surfaces marked with dashed boundaries can be optionally calibrated and included in the generated environment model using the device described in Section. These regions were detected by the SCP during an automatic off-line environmental model building phase described below (Section 5.2). Some of these are marked by white boundaries in Figure 2. Within the AME, we can define several surfaces suitable for supporting projected interfaces. A fifth steerable camera is centrally mounted in the room as part of the steerable camera-projector system (SCP).
Steerable cameras are installed in each of the four corners of the room. The wide angle camera has a field of view that covers the entire room. The sensing infrastructure includes five steerable cameras, a fixed wide angle camera, and a microphone array. The AME is an ordinary office equipped with ability to sense and act. The experiments described below are performed in our Augmented Meeting Environment (AME). Endowed with the ability to modify the scene using projected light, projector-camera systems can be exploited as sensors (Section 5.2). Association of the camera and projector creates a powerful actuator-sensor pair enabling observation of users’ actions within the camera field of view. Note that the projector-camera pair is mounted in such a way that the projected beam overlaps with the camera view. The Steerable Camera-Projector (SCP) platform is a device that gives a video- projector and its associated camera two mechanical degrees of freedom, pan and tilt.
It enables us to experiment with multiple interactive surfaces in an office environment. our experiments, we use a Steerable Projector-Camera (SCP) assembly ( Figure 1).
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