We propose camera models for cameras that are equipped with lenses that can be tilted in
an arbitrary direction (often called Scheimpflug optics). The proposed models are …

A behaviour of perspective projection which causes eccentricity in the image measurement
of circular and spherical targets is discussed. While it is commonly known that flat circular …

Image-based deformation measurement (IBDM) techniques entail the use of image
sequences for extracting metric information to be compared over time. Their applications …

This paper discusses a feature of projective geometry which causes eccentricity in the image
measurement of circular and spherical targets. While it is commonly known that flat circular …

The monitoring of a progressive collapse test of a structure model has always been a
technical issue in civil engineering. This paper proposes a novel videogrammetric approach …

As part of the United Kingdom's Light Controlled Factory project, University College London
aims to develop a large-scale multi-camera system for dimensional control tasks in …

Height measurement and location by a laser sensor is a key technology to ensure accurate
and stable operation of a dispensing robot. In addition, alternation of dynamic and static …

Optical markers' centres' calculation, indirectly inferred from fitted ellipses' borders, is subject
to uncertainties which arise from both noise in data and systematic errors and whose …

The precision circle target sub-pixel centroid location is one of the key factors of large space
3D coordinates measurement. In this paper, the circle retro-reflective targets and optical …