This study investigates the geometric accuracy of DSMs and orthoimages, which are obtained from high resolution satellite stereo pairs of in-track, cross-track and mixed satellite images. Four IKONOS and two QuickBird panchromatic images are used to constitute 15 stereo pairs, and are processed to generate DSMs and orthoimages. A geometric stereo model, which represents the stereo acquisition g...

A generic rigorous sensor model for high resolution optical satellite sensors, with along track stereoscopic capabilities, is introduced. Along track stereo images are acquired on the same orbit by satellites which usually have on board more than one sensor looking at the earth with different angles, or satellites that can rotate their sensor in the along track direction. The advantages of alon...

This paper gives an overview of a system for robustly tracking the 3D position and orientation of a finger using a few closely spaced cameras. Accurate results are obtained by combining features of stereo range images and color images. This work also provides a design framework for combining multiple sources of information, including stereo range images, color segmentations, shape information a...

Digital elevation model (DEM) extracted from IKONOS along-track stereo images with photogrammetric method is evaluated. As few as 12 GCPs are enough for the stereo photogrammetric bundle adjustment, which also filters the errors of the input data. With an area-based image matching users may produce high resolution DEMs with LE68 errors of 1 m to 4 m depending on the land covers. The best result...

Cartosat-1 provides stereo images of spatial resolution 2.5m with high fidelity of geometry. Stereo camera on the spacecraft has look angles of +26 degree and -5 degree respectively that yields effective along track stereo. Any DSM generation algorithm can use the stereo images for accurate 3D reconstruction and measurement of ground. Dense match points and pixel-wise matching are prerequisite ...

Introduction: The Lunar Reconnaissance Orbiter (LRO) has been flying in its nominal, or mapping, orbit of ~50 km above the surface of the Moon since September 15, 2009 [1]. The Lunar Reconnaissance Orbiter Camera Narrow Angle Camera (LROC-NAC) takes high resolution images using two identical line scan cameras (NACL and NACR) with pointing offset from each other by ~2.79o cross-track and ~0.082o...

This is a proposal for a thesis topic of robust tracking and recognition of finger gestures. It is anticipated that this work will also provide and demonstrate a design framework for combining multiple sources of information. These will including stereo range images, color segmentations, motion images, shape information, and various constraints about the information. This information will be us...

In this paper, a stereo vision 3D position measurement system for a three-axial pneumatic parallel mechanism robot arm is presented. The stereo vision 3D position measurement system aims to measure the 3D trajectories of the end-effector of the robot arm. To track the end-effector of the robot arm, the circle detection algorithm is used to detect the desired target and the SAD algorithm is used...