There are increasing applications that require precise calibration of cameras to perform
accurate measurements on objects located within images, and an automatic algorithm …

Abstract Image analysis of Arabidopsis (Arabidopsis thaliana) rosettes is an important
nondestructive method for studying plant growth. Some work on automatic rosette …

Localization of chess-board vertices is a common task in computer vision, underpinning
many applications, but relatively little work focusses on designing a specific feature detector …

Determining camera calibration parameters is a time-consuming task despite the availability
of calibration algorithms and software. A set of correspondences between points on the …

When calibrating multi-camera systems with existing camera calibration toolboxes, it is
oftentimes required that calibration boards are fully captured by all cameras to establish …

An image guidance system for tracking a surgical instrument during a surgical procedure.
The image guidance system includes a plurality of cameras adapted to be located exter nal …

Camera calibration is an important procedure for the image-based three-dimensional (3D)
shape reconstruction of existing objects. Methods that use different mathematics for the …

Projector-camera systems always need complicated geometry calibration to get a correct
display result on nonplanar projection surface. Geometry registration of most calibration …

In clinical operations, it is crucial for surgeons to know the location of the surgical instrument.
Traditional positioning systems have difficulty dealing with camera occlusion, marker …

In recent years, surgical instrument tracking has gained significant attention in the field of
surgical navigation. An often-overlooked problem lies in the instrument's irregular movement …