Mitsubishi Electric Research Laboratories, Inc.

Mitsubishi Electric Research Labs.

Leonard McMillan, Jr

Wojciech Matusik

Hanspeter Pfister

Wai Kit Addy Ngan

Paul A Beardsley

Remo Ziegler

A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.

Image-based 3D modeling rendering system

Modeling and rendering of surface reflectance fields of 3D objects

A system digitizes a three-dimensional object as a three-dimension model by placing the object on a turntable while taking two sets of corresponding images. The first set of images and the second set of images are obtained while rotating the turntable to a various positions and illuminated the object with the overhead lights and backlights. There is a one to one correspondence for images in each set for each position of the turntable. Object shape data and texture data are respectively extracted from the first and second set of images. The object shape data is correlated with the object texture data to construct the three-dimensional digital model stored in a memory of a computer system.

Image-based 3D digitizer

Modeling 3D objects with opacity hulls

Growing community of inventors

Newton, MA, United States of America

Leonard McMillan, Jr