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We present a technique for capturing time-varying volumetric data of participating media. A laser sheet is swept repeatedly through the volume, and the scattered light is imaged using a high-speed camera. Each sweep of the laser provides a near-simultaneous volume of density values. We demonstrate rendered animations under changing viewpoint and(More)
We present an image-based approach for capturing the appearance of a walking or running person so they can be rendered realistically under variable viewpoint and illumination. In our approach, a person walks on a treadmill at a regular rate as a turntable slowly rotates the person's direction. As this happens, the person is filmed with a vertical array of(More)
We present a technique for capturing high-resolution 4D reflectance fields using the reciprocity property of light transport. In our technique we place the object inside a diffuse spherical shell and scan a laser across its surface. For each incident ray, the object scatters a pattern of light onto the inner surface of the sphere, and we photograph the(More)
We present a method that extends techniques in [Yu and Malik 1998] and [Debevec 1998] to estimate the surface colors of a complex scene with diffuse surfaces lit by natural outdoor illumination. Given a model of the scene's geometry, a set of photographs of the scene taken under natural illumination, and corresponding measurements of the illumination, we(More)
We describe a low-cost system for acquiring high-resolution geometry and reflectance properties using photometric stereo. This technique was used to model ancient inscriptions on the Parthenon in Athens, Greece and proved to be fast, simple and robust. The principle of photometric stereo [Woodham 1980] is to take three or more images of an object from the(More)
[1] GPS observations in south Iceland between 1994 and 2003 are compared with two-dimensional elastic half-space and viscoelastic coupling models for two parallel rift zones, representing the Western and Eastern volcanic zones (WVZ, EVZ). GPS data from the Hreppar block, between the WVZ and EVZ, fit a rigid block model within uncertainties. Spreading rates(More)
We describe a low-cost system for acquiring high-resolution geometry and reflectance properties using photometric stereo. This technique was used to model ancient inscriptions on the Parthenon in Athens, Greece and proved to be fast, simple and robust. The principle of photometric stereo [Woodham 1980] is to take three or more images of an object from the(More)
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