In this paper, a calibration method for a camera with focus-related intrinsic parameters
based on the thin-lens model is proposed to realize highly accurate measurement for small …

For zoom micro-vision system containing electrically tunable lens (ETL), traditional
calibration methods are usually ineffective or inefficient due to the limited field of view (FOV) …

Camera distortion is a critical factor affecting the accuracy of camera calibration. A
conventional calibration approach cannot satisfy the requirement of a measurement system …

Compared to a conventional fixed focus lens, a zoom lens is more flexible and adaptable.
However, the challenges involved in precise calibration for a zoom camera prevent its …

In image-guided robotic surgery, segmenting the endoscopic video stream into meaningful
parts provides important contextual information that surgeons can exploit to enhance their …

Lines are one of the basic primitives used by the perceptual system to analyze and interpret
a scene. Therefore, line detection is a very important issue for the robustness and flexibility …

A zoom lens is more flexible for photogrammetric measurements under diverse
environments than a fixed lens. However, challenges in calibration of zoom-lens cameras …

A simple camera calibration method based on the principle of phase encoding and
coordinate transformation is proposed. We use a reference coordinate frame encoded as a …

Featured Application Dual PTZ cameras can be used in high-precision 3D reconstruction of
large scenes, long-distance reconnaissance, active tracking and target recognition and …

In this paper, a calibration method for the camera system with electrically tunable lens (ETL)
based on shape-changing polymer (SCP) is proposed to improve the accuracy, robustness …