In this paper a new calibration method is proposed for projector using an uncalibrated camera. The difficulty to get a set of 2D-3D points in order to compute the projection matrix between the projector and the world has no easy solution. Methods are either inaccurate or inflexible. We propose an easy and automatic way to calibrate a projector. This method is a combination of pattern detection ...

We present a brief history of historic handheld projection devices and introduce design techniques for handheld projector interaction that draw from the principles of traditional animation and sequential art. Our approach is to utilize the movement of the handheld projector to express the motion and physicality of projected foreground objects. Users interact and control the projected image by m...

This report describes a Master's thesis project to create a projector-camera system. A projector-camera system is a fairly new interface for human-computer interaction where the user can interact with projections. This report starts off by examining some previous work and then goes on to study some different solutions and approaches to the problems you face when constructing a projector-camera ...

This article addresses a question of Carl de Boor (cf. [3]): What ideal projectors are the limits of Lagrange projectors? The results of this paper answer the question in the sense that for every ideal projector P we prescribe …nitely many computations that determine whether the projector P is a limit of Lagrange projectors.

We propose an integral form of Atiah-Patodi-Singer spectral boundary conditions (SBC) and find explicitly the integral projector onto SBC for the 3-dimensional spherical cavity. After discussion of a simple example we argue that the relation between the projector and fermion propagator is universal and stays valid independently of the bag form and space dimension.

BACKGROUND Biochemical pathways provide an essential context for understanding comprehensive experimental data and the systematic workings of a cell. Therefore, the availability of online pathway browsers will facilitate post-genomic research, just as genome browsers have contributed to genomics. Many pathway maps have been provided online as part of public pathway databases. Most of these maps...

-This paper presents a new approach allowing a projector to display an undistorted image on an unknown geometry surface. In the distortion correction system, a single digital camera is used to capture the viewer’s perspective of the projection surface, and a computer is used to process the origional source image to show an undistortion image from the view position of audience. In the approach, ...

We analyze if entangled fermionic states can be described by a projector in the one-particle Hilbert space. A method is developed for realizing entanglement and general second quantized fermionic and bosonic fields in the framework of the fermionic projector. Our constructions are discussed with regard to decoherence phenomena and the measurement problem.

Addressing the typically time consuming adjustment of projector equipment in VR installations we propose an easy to implement projector calibration method that effectively corrects images projected onto planar surfaces and which does not require any additional hardware. For hardware accelerated 3D applications only the projection matrix has to be modified slightly thus there is no performance i...

We study the spectrum and the rank of a linear combination of two orthogonal projectors. We characterize when this linear combination is EP, diagonalizable, idempotent, tripotent, involutive, nilpotent, generalized projector, and hypergeneralized projector. Also we derive the Moore-Penrose inverse of a linear combination of two orthogonal projectors in a particular case. The main tool used here...