# Richard Franklin Riesenfeld

> Ph.D. Syracuse University 1973

**Wikidata**: [Q102121630](https://www.wikidata.org/wiki/Q102121630)  
**Source**: https://4ort.xyz/entity/richard-franklin-riesenfeld

## Summary
Richard Franklin Riesenfeld is an American computer scientist and university teacher, best known for his foundational contributions to geometric modeling and computer graphics. He earned his Ph.D. from Syracuse University in 1973 and has since influenced the field through both research and mentorship, including advising notable students like Brian A. Barsky.

## Biography
- Born: 1946
- Nationality: American
- Education: 
  - B.A. in Mathematics, Princeton University (1962–1966)
  - Ph.D., Syracuse University (1973)
- Known for: Contributions to geometric modeling and computer graphics
- Field(s): Computer science, geometric modeling, computer graphics

## Contributions
Richard Franklin Riesenfeld’s academic career has centered on advancing the mathematical and computational foundations of geometric modeling and computer graphics. His doctoral work at Syracuse University, completed in 1973 under the guidance of William John Gordon, Jr. and Steven A. Coons, placed him at the forefront of early computer-aided geometric design (CAGD). Riesenfeld’s research helped formalize the use of spline-based representations and parametric curves and surfaces, which became core tools in both academic research and industrial applications like CAD systems and animation software.

As a faculty member, Riesenfeld built a legacy not only through publications but also through mentorship. He advised multiple doctoral students who went on to make significant contributions of their own, including Brian A. Barsky, a pioneer in spline curves and vision-correcting displays. Other students—Bruce S. Gooch, Michael McEmory Stark, and Xianming Chen—extended research into non-photorealistic rendering, GPU algorithms, and geometric optimization, spreading Riesenfeld’s influence into modern graphics pipelines and interactive techniques. While specific paper titles and patents are not listed in the source material, his sustained presence in the Mathematics Genealogy Project and DBLP confirms decades of scholarly output and academic leadership.

## FAQs
### Q: What is Richard Franklin Riesenfeld best known for?
A: He is best known for his research in geometric modeling and computer graphics, particularly his early work on spline-based curves and surfaces that underlie modern CAD and animation systems.

### Q: Where did Richard Franklin Riesenfeld earn his Ph.D.?
A: He earned his Ph.D. from Syracuse University in 1973.

### Q: Who were some of Richard Franklin Riesenfeld’s doctoral students?
A: His doctoral students include Brian A. Barsky, Bruce S. Gooch, Michael McEmory Stark, and Xianming Chen, all of whom became noted researchers in computer graphics.

### Q: What universities did Richard Franklin Riesenfeld attend?
A: He completed a B.A. in Mathematics at Princeton University (1962–1966) and later obtained his Ph.D. from Syracuse University.

## Why They Matter
Riesenfeld’s work helped bridge pure mathematics and practical computing during the formative years of computer graphics. By formalizing spline and parametric surface techniques, he provided the geometric backbone for industries ranging from automotive and aerospace design to entertainment and medical imaging. His mentorship multiplied this impact: advising future leaders like Brian A. Barsky ensured that successive generations pushed the boundaries of curve and surface modeling, vision-correcting displays, and non-photorealistic rendering. Without Riesenfeld’s early rigor in geometric modeling, the seamless CAD workflows and high-fidelity graphics common today would likely have emerged more slowly and less coherently. His legacy persists in both the algorithms that power modern design software and in the academic lineage that continues to extend his ideas.

## Notable For
- Ph.D. in 1973 from Syracuse University, supervised by William John Gordon, Jr. and Steven A. Coons
- Pioneering research in spline-based geometric modeling and computer graphics
- Doctoral advisor to Brian A. Barsky, a key figure in spline curves and vision-correcting displays
- Long-standing academic presence documented in the Mathematics Genealogy Project and DBLP
- Influenced multiple sub-fields through students working on GPU algorithms, non-photorealistic rendering, and geometric optimization

## Body
### Early Life and Education
Richard Franklin Riesenfeld was born in 1946. He enrolled at Princeton University in 1962 and graduated with a Bachelor of Arts in Mathematics in 1966. He continued to Syracuse University, where he completed his Ph.D. in 1973 under advisors William John Gordon, Jr. and Steven A. Coons, both renowned for early computer-aided geometric design.

### Academic Career
Riesenfeld’s career has combined university teaching with sustained research in computer science. His primary focus has been geometric modeling—the mathematical representation of shapes—and its application to computer graphics. While the source material does not list every institution he has taught at, his continuous entry in major academic databases confirms decades of faculty service.

### Research Focus
- Geometric modeling using splines and parametric curves/surfaces
- Mathematical foundations for computer-aided design (CAD)
- Algorithms for efficient curve and surface evaluation and rendering

### Doctoral Students and Legacy
Riesenfeld mentored numerous Ph.D. candidates who extended his work into new areas:
- Brian A. Barsky: spline curves, vision-correcting displays
- Bruce S. Gooch: non-photorealistic rendering
- Michael McEmory Stark: GPU-centric geometry algorithms
- Xianming Chen: geometric optimization and surface reconstruction

Their collective output helped shape modern graphics pipelines, real-time rendering, and interactive modeling tools.

### Professional Identifiers
- ISNI: 0000000114934865
- DBLP author ID: r/RFRiesenfeld
- Mathematics Genealogy Project ID: 16454
- National Library of Poland NUKAT ID: n2005014333

## References

1. Mathematics Genealogy Project
2. LinkedIn
3. Czech National Authority Database