Phased array antennas have played a very important role in many different areas and applications. It requires precise excitation of each antenna element by various synthesis techniques to obtain desired pattern features. However, due reasons such as manufacturing imperfections, component aging, temperature variation, the realistic inevitably differs from their expected values practice. This pap...

This paper examines camera calibration in a general setting and considers a number of factors which can be used to distinguish between diierent calibration procedures. The factors are model complexity, parameter classiication, measure of model t and numerical solution. A number of calibration procedures are examined and classiied by these factors. Finally, some possible improvements to current ...

The detection of plants based on a machine vision system is one of the most important parts of plants simulation. The calibration of the machine vision system is a basic step for nondestructive detection. We discuss common methods such as traditional calibration techniques, active vision based calibration techniques, and self-calibration techniques. The results show that it is feasible to apply...

In this paper we investigate how intrinsic camera calibration and hand-eye calibration can be performed on a robot vision system using the simplest possible motions and a planar calibration object. The standard methods on plane-based camera calibration are extended with theory on how to use pure translational motions for the intrinsic calibration and we see how hand-eye calibration can be perfo...