System and method for 3-D digital reconstruction of an oral cavity from a sequence of 2-D images
US7084868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2001 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Jul 26, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are provided through which a model-based vision system for dentistry which assists in diagnosis, treatment planning and surgical simulation. The present invention includes an integrated computer vision system that constructs a three-dimensional (3-D) model of the patient's dental occlusion using an intra-oral video camera. A modified shape from shading technique, using perspective projection and camera calibration, extracts the 3-D information from a sequence of two-dimensional images of the jaw. Data fusion of range data and 3-D registration techniques develop a complete 3-D digital jaw model. Triangulation of the 3-D digital model is then performed, and optionally, a solid 3-D model is reconstructed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.