Iterative Multi-Step Explicit Camera Calibration

Monoplanar Camera Calibration Iterative Multi-Step Approach

A new method for robotics camera calibration based on a linear computation and using a coplanar group of calibration points is presented in this paper. This new method suppresses the constraint presented by the RAC calibration model of having an incidence angle between the optical axis and the calibration plane of at least 30 degrees. The parameters are obtained based on a multi-step calculatio...

A Multi-Step Explicit Stereo Camera Calibration Approach to Improve Euclidean Accuracy of Large-Scale 3D Reconstruction

Multi-hypothesis, volumetric reconstruction of 3-D objects from multiple calibrated camera views

ICASSP’99, Phoenix, USA, pp. 3509-3512, March 1999. In this paper we present a volumetric method for the 3-D reconstruction of real world objects from multiple calibrated camera views. The representation of the objects is fully volume-based and no explicit surface description is needed. The approach is based on multi-hypothesis tests of the voxel model back-projected into the image planes. All ...

Real-Time Computer Vision System for Mobile Robot

The purpose of this paper is to present a real-time vision system for position determination and vision guidance to navigate an autonomous mobile robot in a known environment. We use a digital camera, which provide ten times the video capture bandwidth then a USB, using FireWire interface. In order to achieve real-time image processing we use MMX technology to accelerate vision tasks. Camera ca...

Stereo Calibration and Rectification for Omnidirectional Multi-camera Systems

Stereo vision has been studied for decades as a fundamental problem in the field of computer vision. In recent years, computer vision and image processing with a large field of view, especially using omnidirectional vision and panoramic images, has been receiving increasing attention. An important problem for stereo vision is calibration. Although various kinds of...