ABSTRACT: The visual tracking is the major process in finding the spot of moving object over time using a camera. Object tracking is challenging task when the object moves fast relative to the frame rate. The active contour algorithm is used for tracking the object in a given frame of an image sequence. In videos particular object motion can be tracked by using stationary cameras but in moving ...

Abstract Multi-Target Multi-Camera (MTMC) vehicle tracking is an essential task of visual traffic monitoring, one the main research fields Intelligent Transportation Systems. Several offline approaches have been proposed to address this task; however, they are not compatible with real-world applications due their high latency and post-processing requirements. This lack suitable motivates our pr...

The panorama-based annotation method described in this paper uses a panoramic image as the source of information about the positions of the annotations. It nds image alignment parameters between an input frame and the panoramic image and then maps the positions of annotations from the panoramic image to the input frame and displays the input frame overlaid with those annotations. Camera movemen...

in this paper, we define and study the notion of the real-valued functions on a frame $l$. we show that $f(l) $, consisting of all frame homomorphisms from the power set of $mathbb{r}$ to a frame $ l$, is an $f$-ring, as a generalization of all functions from a set $x$ into $mathbb r$. also, we show that $f(l) $ is isomorphic to a sub-$f$-ring of $mathcal{r}(l)$, the ring of real-valued continu...

This paper discusses nonlinear proportional-integral (PI) current control with anti-windup of reluctance synchronous machines (RSMs) for which the flux linkage maps are known. The nonlinear controller design is based on the tuning rule “Magnitude Optimum criterion” [1]. Due to the nonlinear flux linkage, the current dynamics of RSMs are highly nonlinear and, so, the parameters of the PI control...

We present a tool for the acquisition of 3D textured models of objects of desktop size using an hybrid computer vision framework. This framework combines active laser-based triangulation with passive motion estimation. The 3D models are obtained by motion-based alignment (with respect to a fixed world frame) of imaged laser profiles backprojected onto time-varying camera frames. Two distinct te...

Higher frame-rates promise better tracking of rapid motion, but advanced real-time vision systems rarely exceed the standard 10– 60Hz range, arguing that the computation required would be too great. Actually, increasing frame-rate is mitigated by reduced computational cost per frame in trackers which take advantage of prediction. Additionally, when we consider the physics of image formation, hi...

This work presents an approach for computing camera pose from images of fiducial markers. The processing is shared between an FPGA and a PC: the FPGA converts grayscale camera images into binary format and transfers them to the PC; and the PC detects fiducial markers in the received binary camera images and computes the position and orientation of the camera. The approach is evaluated in terms ...

Recently, Zhuang et al. [1] proposed a method that allows simultaneous computation of the rigid transformations from world frame to robot base frame and from hand frame to camera frame. Their method attempts to solve a homogeneous matrix equation of the formAX = ZB. They use quaternions to derive explicit linear solutions for X and Z. In this short paper, we present two new solutions that attem...

The primary challenge in generating convincing Augmented Reality (AR) graphics is to project 3D models onto a user’s view of the real world and create a temporal and spatial sustained illusion that the virtual and real objects co-exist. Regardless of the spatial relationship between the real and virtual objects, traditional AR graphical engines break the illusion of co-existence by displaying t...