Cyberware Laboratory Inc. 4020/RGB 3D Scanner with Color Digitizer. Monterey, CA, 1990.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....also affects many other areas of computer graphics, such as computer animation, special effects, and CAD. For small objects, say 0.2 2m, laser based scanners are a good solution. These scanners provide registered depth and colored texture maps, usually in either raster or cylindrical coordinates [Cyberware Laboratory Inc, 1990; Rioux and Bird, 1993] They have been used extensively in the entertainment industry for special effects and computer animation. Unfortunately, laser based scanners are fairly expensive, limited in resolution (typically 512 256 pixels) and most importantly, limited in range (e.g. they cannot ....

Cyberware Laboratory Inc. 4020/RGB 3D Scanner with color digitizer. Monterey, 1990.

....Research E mail addresses: fvlee j dtg vis.toronto.edu, waters crl.dec.com Traditionally, facial meshes have been constructed manually from two or more views of the face or by manually digitizing plaster casts. This laborious and error prone task has been superseded by active laser scanners [1, 4]. Scanners, such as the one manufactured by Cyberware, Inc. circles around a person s head to acquire high resolution, regularly sampled range and reflectance information. To take advantage of these scanners in human facial modeling and animation, our goal is to develop efficient and highly ....

....physics based facial models. In particular we develop a predominantly automatic method for constructing realistic, working models of individual s heads for use in animation. The method begins with detailed radial range and reflectance images acquired from an individual using the Cyberware scanner [1]. We develop an automatic conformation algorithm which adapts a triangulated face mesh of predetermined topological structure to the scanned data. This generic mesh, which is reusable with different individuals, is designed to reduce the range data to an efficient, polygonal approximation of the ....

Cyberware Laboratory, Inc. 4020/RGB 3D Scanner with Color Digitizer. Monterey, CA, 1990.

....and face tracking and position our approach among them. 1.4.1 Modeling Several methods can be used to capture a 3D face model of a real person s face. First, the face geometry and texture can be automatically acquired using laser based cylindrical scanners such as those produced by Cyberware [16]. A second approach is based on photogrammetric techniques in which images are used to create precise geometry [53, 68] Our modeling technique falls into this category. Compared with face modeling methods that utilize a laser scanner, our technique uses simpler acquisition equipment (regular ....

Cyberware Laboratory, Inc, Monterey, California. 4020/RGB 3D Scanner with Color Digitizer, 1990. 88

.... were digitized by hand [34] A radically different approach is performancebased animation, in which measurements from real actors are used to drive synthetic characters [4, 13, 47] Today, face models can also be obtained using laser based cylindrical scanners, such as those produced by Cyberware [8]. The resulting range and color data can be fitted with a structured face mesh, augmented with a physicallybased model of skin and muscles [29, 30, 43, 46] The animations produced using these face models represent the state of the art in automatic physically based facial animation. For sheer ....

Cyberware Laboratory, Inc, Monterey, California. 4020/RGB 3D Scanner with Color Digitizer, 1990.

....properties, and deformation of facial expression or speech. For the acquisition of facial geometry, we have two major approaches: 3D input and 2D input. 5.4.1 3D Input The use of the 3D digitizer is the most direct way of obtaining the geometry of faces. The laser illuminated triangulation method [31] involves a laser and camera. With this method, 128,000 range and reflectance samples may be obtained in a few seconds. Cylindrical projection is used for the measurement of faces. Williams [151] created facial models from measured data, and animated it. 120,000 samples are typically too much for ....

....7.2. 1 Shape Interpolation Shape interpolation is a common and simple technique to control synthetic faces and stems from the early work of Parke [102] The process operates as follows: A database of discrete facial postures is created from 3D digitizers, stereo photogrammetry, or optical scanners [31, 137]. These facial data sets have the property of topological equivalence, such that a complete mapping can be found for each vertex in every facial posture. Once a complete set is derived, then inbetween interpolation of the [x,y,z] coordinates can be computed. Unfortunately, this technique is ....

Cyberware Laboratory Inc., Monterey. 4020/(RGB 3D) Scanner with color digitizer, 1990.

....also affects many other areas of computer graphics, such as computer animation, special effects, and CAD. For small objects, say 0.2 2m, laser based scanners are a good solution. These scanners provide registered depth and colored texture maps, usually in either raster or cylindrical coordinates [Cyberware Laboratory Inc, 1990; Rioux and Bird, 1993] They have been used extensively in the entertainment industry for special effects and computer animation. Unfortunately, laser based scanners are fairly expensive, limited in resolution (typically 512 Theta 256 pixels) and most importantly, limited in range (e.g. they ....

Cyberware Laboratory Inc. 4020/RGB 3D Scanner with color digitizer. Monterey, 1990.

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REFERENCES 78 Cyberware Laboratory, Inc. (1990). 4020/RGB 3D Scanner with Color Digitizer. Monterey, CA.

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Cyberware Laboratory Inc. 4020/RGB 3D Scanner with Color Digitizer. Monterey, CA, 1990.

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