The three-dimensional reconstruction of real objects is an important topic in computer vision. Most of the acquisition systems are limited to reconstruct a partial view of the object obtaining in blind areas and occlusions, while in most applications ...

Context awareness is an important functionality for wearable computers. In particular, the computer should know where the person is in the environment. This paper proposes an image sequence matching technique for the recognition of locations and previously ...

In this paper, we compare the various methods for the simultaneous and sequential reconstruction of points, lines, planes, quadrics, plane conics and degenerate quadrics using Bundle Adjustment, both in projective and metric space. In contrast, most ...

This paper describes a system for ubiquitous interaction that does not require users to carry any physical devices. In this system, the environment is instrumented with camera/processor combinations that watch users while protecting their privacy. Any ...

Moving object recognition by a shape-based neural fuzzy network is proposed in this paper. The moving objects considered in this paper include pedestrians, vehicles, motorcycle, and dogs. Given the shape of the moving object, its contour is calculated ...

Image representation by sign data in its most general context is considered for the case when f is a two-dimensional signal. The authors study conditions under which f is determined by its sign or, in other words, by its quantization to 1 bit of information. ...

Immersive electronic books (IEBooks) for surgical training will let surgeons explore previous surgical procedures in 3D. The authors describe the techniques and tools for creating IEBook.

In this paper, the authors use the conformal geometric algebra in robotics. This paper computes the inverse kinematics of a robot arm and the differential kinematics of a pan–tilt unit using a language of spheres showing how we can simplify the ...

This paper discusses the concept of using head and facial feature tracking as an input mechanism for mobile devices. We present our concept and ideas, along with preliminary findings from two prototype implementations. Suggestions for further work and ...

In this paper, a novel method is introduced to estimate height from surface normal and implemented in a photometric 3D reconstruction system, base on the improved optimization function in the height domain. To avoid the global distortion from local integration, ...

Complex image processing tasks rarely succeed through the application of just one methodology. The implementation of different methodologies, whose treatment of the input images is complementary, can help in the successful attainment of the system goal. ...

Abstract¿An important issue in developing a model-based vision system is the specification of features that are invariant to viewing and scene conditions and also specific, i.e., the feature must have different values for different classes of objects. ...

In this paper we describe our work on 3-D model-based tracking of unconstrained human upper body movement. Using real image sequences acquired from multiple views, we recover the 3-D body pose at each time instant without the use of markers. The pose-recovery ...

In this paper an innovative approach for utilizing advances of wireless mobility and computer vision for the application of video surveillance are given. Design and engineering of a high performance wireless self-contained surveillance unit is presented ...

Image matching acts main role on digital image processing and computer vision. Least Squares Matching (LSM) is one of methods of image matching. The paper introduces some approaches of image matching, especially the application of LSM in digital close ...

We describe experiments in recognizing a person's situation from only a wearable camera and microphone. The types of situations considered in these experiments are coarse locations (such as at work, in a subway or in a grocery store) and coarse events ...