In this paper we present a novel analysis-by-synthesis approach for real-time camera tracking in industrial scenarios. The camera pose estimation is based on the tracking of line features which are generated dynamically in every frame by rendering a polygonal model and extracting contours out of the rendered scene. Different methods of the line model generation are investigated. Depending on th...

Time-correlated single photon counting (TCSPC) is a sensitive, robust and precise technique to measure luminescence decays.[1] For fluorescence microscopy, it is often implemented with beam scanning and single point detectors, but we have implemented a camera-based wide-field TCSPC method. We employ a photon counting image intensifier in combination with a 1 MHz frame rate CMOS camera, thus com...

We propose a new method to localize in three dimensions the camera-equipped nodes in a smart camera network. Our method has both lower costs and fewer deployment constraints than a commonly used computer vision-based approach, which is to opportunistically determine feature points in the overlapping view of pairs of cameras, compute the essential matrix for all such pairs, then perform a bundle...

Reconstruction of 3D models of real world scenes and objects and photo realistic rendering in interactive free viewpoint applications is a challenging task combining image processing, computer vision and computer graphics. In this paper, we present a reconstruction pipeline for cultural heritage applications. Starting with a number of photographs of a scene, calibration information is obtained ...

Background and Objectives: Action recognition, as the processes of labeling an unknown action of a query video, is a challenging problem, due to the event complexity, variations in imaging conditions, and intra- and inter-individual action-variability. A number of solutions proposed to solve action recognition problem. Many of these frameworks suppose that each video sequence includes only one ...

a generalization of the known results in fusion frames and $g$-frames theory to continuous fusion frames which defined by m. h. faroughi and r. ahmadi, is presented in this study. continuous resolution of the identity (cri) is introduced, a new family of cri is constructed, and a number of reconstruction formulas are obtained. also, new results are given on the duality of continuous fusion fram...

We present a novel approach to structure from motion that integrates wide baseline local features with tracked features to rapidly and robustly reconstruct scenes from image sequences. Rather than assume that we can create and maintain a consistent and drift-free reconstructed map over an arbitrarily long sequence, we instead create small, independent submaps generated over short periods of tim...

Security monitoring, event detection and tracking of people are a few of the well-known applications for indoor video surveillance systems, but mainly they are accomplished by visual inspection of the images. There is need to integrate visual surveillance systems with 3D geospatial data to semantically improve interpretation of scene dynamics which is challenge in 2D image analysis. In this stu...

We propose a novel calibration method for catadioptric systems made up of an axial symmetrical mirror and a pinhole camera with its optical center located at the mirror axis. The calibration estimates the relative camera/mirror position and the extrinsic rotation and translation w.r.t. the world frame. The procedure requires a single image of a (possibly planar) calibration object. We show how ...