Thomas Sederberg

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Thomas W. Sederberg is the associate dean of the college of physcial and mathematical sciences and professor of Computer Science at Brigham Young University in Provo, Utah. His research involves computer graphics and computer aided design. He helped invent free-form deformation and T-splines. [1]

Brigham Young University private research university located in Provo, Utah, United States

Brigham Young University is a private, non-profit research university in Provo, Utah, United States completely owned by The Church of Jesus Christ of Latter-day Saints and run under the auspices of its Church Educational System. Approximately 99 percent of the students are members of the LDS Church and one-third of its U.S. students are from Utah. The university's primary focus is on undergraduate education, but it also has 68 master's and 25 doctoral degree programs.

Provo, Utah City in Utah, United States

Provo is the third-largest city in Utah, United States. It is 43 miles (69 km) south of Salt Lake City along the Wasatch Front. Provo is the largest city and county seat of Utah County.

In computer graphics, free-form deformation (FFD) is a geometric technique used to model simple deformations of rigid objects. It is based on the idea of enclosing an object within a cube or another hull object, and transforming the object within the hull as the hull is deformed. Deformation of the hull is based on the concept of so-called hyper-patches, which are three-dimensional analogs of parametric curves such as Bézier curves, B-splines, or NURBs. The technique was first described by Thomas W. Sederberg and Scott R. Parry in 1986, and is based on an earlier technique by Alan Barr. It was extended by Coquillart to a technique described as extended free-form deformation, which refines the hull object by introducing additional geometry or by using different hull objects such as cylinders and prisms.


Education and career

Sederberg studied civil engineering at Brigham Young University for both his Bachelor's (1975) and his Master's (1977) degrees. [2] Sederberg received his PhD from Purdue and joined the civil engineering faculty at BYU in 1983. [1] His PhD thesis discussed how to compute intersecting Bézier curves. [3]

He is an associate editor for ACM Transactions on Graphics [4] and for Computer Aided Geometric Design. [5]

ACM Transactions on Graphics is a bimonthly peer-reviewed scientific journal that covers the field of computer graphics. It was established in 1982 and is published by the Association for Computing Machinery. Starting in 2003, all papers accepted for presentation at the annual SIGGRAPH conference are printed in a special summer issue of the journal. Beginning in 2008, papers presented at SIGGRAPH Asia are printed in a special November/December issue.

Sederberg co-founded T-Splines, inc. in 2004, which was acquired by Autodesk in 2011. [6]

Autodesk, Inc. is an American multinational software corporation that makes software services for the architecture, engineering, construction, manufacturing, media, and entertainment industries. Autodesk is headquartered in San Rafael, California, and features a gallery of its customers' work in its San Francisco building. The company has offices worldwide, with U.S. locations in Northern California, Oregon, Colorado, Texas, Michigan and in New England in New Hampshire and Massachusetts, and Canada locations in Ontario, Quebec, and Alberta.


SIGGRAPH awarded Sederberg with the Computer Graphics Achievement award in 2006. [7] In 2013 Sederberg received the Pierre Bézier award for his contributions to solid modeling. [3]

SIGGRAPH conference series

SIGGRAPH is the annual conference on computer graphics (CG) convened by the ACM SIGGRAPH organization. The first SIGGRAPH conference was in 1974. The conference is attended by tens of thousands of computer professionals. Past conferences have been held in Los Angeles, Dallas, New Orleans, Boston, Vancouver, and elsewhere in North America. SIGGRAPH Asia, a second yearly conference, has been held since 2008 in various Asian countries. The strength of SIGGRAPH comes from the chapters set all around the world.

Pierre Étienne Bézier was a French engineer and one of the founders of the fields of solid, geometric and physical modelling as well as in the field of representing curves, especially in CAD/CAM systems. As an engineer at Renault, he became a leader in the transformation of design and manufacturing, through mathematics and computing tools, into computer-aided design and three-dimensional modeling.

Purdue gave Sederberg the Outstanding Mechanical Engineer Award in 2014. [2] Brigham Young University awarded him the Steven V. White University Professorship, the Technology Transfer Award and the Distinguished Faculty Lecturer Award. [8] His publications are highly cited—in 2014 Thomson Reuters named Sederberg as one of the 108 most-cited professors in computer science. [1]

Personal life

Sederberg married Brenda Clark in 1978, and they had eight children. In 1995 Brenda was diagnosed with multiple sclerosis, and she died in 2012. [9]

See also

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