3-D computer vision in experimental mechanics

Introductory techniques for 3-D computer vision

3-D model building for computer vision

This paper presents a Computer-Aided Geometric Design (CAGD) based approach for building 3-D models which can be used for the recognition of 3-D objects for industrial machine vision applications. The objects are designed using the Alpha_1 CAGD system developed at the University of Utah. A new method is given which uses the CAGD design and allows the points on the surface of the object to be sa...

Controllable 3-d Filters for Low Level Computer Vision Controllable 3-d Filters for Low Level Computer Vision

Three-dimensional data processing is becoming more and more common. Typical operations are for example estimation of optical ow in video sequences and orientation estimation in 3-D MR images. This paper proposes an eecient approach to robust low level feature extraction for 3-D image analysis. In contrast to many earlier algorithms the methods proposed in this paper support the use of relativel...

Performance Evaluation of 3 D Computer Vision Techniques

This work presents the implementation and comparison of three different techniques of three-dimensional computer vision as follows: • Stereo vision correlation between two 2D images • Sensorial fusion use of different sensors: camera 2D + ultrasound sensor (1D); • Structured light The computer vision techniques herein presented took into consideration the following characteristics: • Computatio...

An autonomous computer peripheral for active 3 D vision

A peripheral device to a computer is described which is being developed to perform the task of 3D vision autonomously without ‘perception’ of the scene. The fully integrated, stand-alone hardware front-end employs the active vision technique known as ‘strip-lighting’ to provide 3D position data for analysis. This front-end provides data within a unique set of 3D co-ordinates. The best of a rang...