In this paper, a video object segmentation algorithm with robust reference frame generation has been proposed. This algorithm uses a robust approach for obtaining a reference background frame in order to improve the results of change detection and also solves the problems of dis-occluded regions appearing as part of the segmented moving objects. In addition, a change detection process with adap...

We are concerned with enabling truly large scale autonomous navigation in typical human environments. To this end we describe the acquisition and modeling of large urban spaces from data that reflects human sensory input. Over 200GB of image and inertial data are captured using head-mounted stereo cameras. This data is processed into a relative map covering 121 km of Southern England. We point ...

Ai = Prismatic joints along the horizontal circular guide Bi = Spherical joints on the moving platform Ci = Prismatic joints on the vertical columns (i = 1,2,3) {F} = Fixed global reference frame {M} = Moving frame α, β, γ = ZYX Euler angles of rotation about the three joint axes of rider. α', β', γ', δ' = ZYXZ’ Euler angles of rotation about the four joint axes of chair on the moving platform ...

this article concerned on the study of signature submanifolds for curves under lie group actions se(2), sa(2) and for surfaces under se(3). signature submanifold is a regular submanifold which its coordinate components are dierential invariants of an associated manifold under lie group action, and therefore signature submanifold is a key for solving equivalence problems.

We describe a markerless camera tracking system for augmented reality that operates in environments which contain one or more planes. This is a common special case, which we show significantly simplifies tracking. The result is a practical, reliable, vision-based tracker. Furthermore, the tracked plane imposes a natural reference frame, so that the alignment of the real and virtual coordinate s...

The canonical structure of the massive gravity in the first order moving frame formalism is studied. We work in the simplified context of translation invariant fields, with mass terms given by general non-derivative interactions, invariant under the diagonal Lorentz group, depending on the moving frame as well as a fixed reference frame. We prove that the only mass terms which give 5 propagatin...

Visual surveillance system is one of the most challenging research topics in the recent decades. It is a key technology to fight against the problem of crime, terrorism, public safety like in banks, shops, private buildings etc. In this paper, we have analyzed moving object detection techniques, the frame difference and the approximate median method. The frame differencing has been adopted for ...

In recent years, video surveillance systems for the purpose of security have been developed rapidly. More and more researches try to develop intelligent video surveillance systems to replace the traditional passive video surveillance systems (Hu et al., 2004) and (Jacobs & Pless, 2008). The intelligent video surveillance system can detect moving objects in the initial stage and subsequently pro...