In this paper, we present a new fully automatic method for the geometric calibration of a video projector combining structured light projection and a RGBD camera. The projection surface does not need to be planar and is supposed to be unknown. Intrinsic and extrinsic parameter are computed without a scale factor uncertainty or any prior knowledge about the projector. Our method is based on the ...

A toolbox for the development and reduction of the dynamical models of nonequilibrium systems is presented. The main components of this toolbox are: Legendre integrators, dynamical postprocessing, and thermodynamic projector. Thermodynamic projector is the tool to transform almost arbitrary anzatz to a thermodynamically consistent model, the postprocessing is the cheapest way to improve the sol...

We present a novel multi-step technique for imperceptible geometry and radiometry calibration of projectorcamera systems. Our approach can be used to display geometry and color corrected images on non-optimized surfaces at interactive rates while simultaneously performing a series of invisible structured light projections during runtime. It supports disjoint projector-camera configurations, fas...

With the miniaturization of projection technology, the integration of tiny projection units into mobile devices is no longer fiction; therefore, such integrated projectors in mobile devices could make mobile projection ubiquitous. These phones will have the ability to project large-scale information onto any surfaces in the real world, and by doing so, the interaction space of the mobile device...

Recently oblique projection has been studied for many applications in signal processing. In this paper, the concept of oblique projection is applied to develop an algorithm for hyperspectral image classi"cation. Compared with the orthogonal subspace projector (OSP), it can be found that OSP is a priori classi"er but the oblique subspace projection classi"er will be referred to a posterior. As a...

This paper describes an alternative approach to interpreting the data from a temporarily encoded structured light system. Instead of focusing on the stripes generated in the image by such a sensor, the transitions between stripes are of primary importance. Transitions correspond to projector shutter features signiicantly smaller that the stripes and hence their spatial location is much more wel...

In this paper, we describe a novel uncalibrated active stereo system using coded structured light. Structured-light-based active stereo systems generally consist of a camera and projector that require precise precalibration. Therefore, if we can eliminate the precalibration process from the system, the user can merely place the equipment arbitrarily and directly begin scanning the objects. This...

A scalable multi-projector calibration method for arbitrary surrounded projection surface is proposed. The method is based on the viewing parameter based principle, which ensures that at each view point and in each direction, the image observed by the camera is the image rendered in these viewing parameters. The principle also ensures that multi-projector can be well aligned. Coded structured l...

We consider quantum spin systems defined on finite sets V equipped with a metric. In typical examples, V is a large, but finite subset of Z. For finite range Hamiltonians with uniformly bounded interaction terms and a unique, gapped ground state, we demonstrate a locality property of the corresponding ground state projector. In such systems, this ground state projector can be approximated by th...

Creation of accurate surface models of abdominal organs is essential for many developing technologies in medicine and surgery. One application we are working towards is augmented reality (AR) visualization for laparoscopic surgery. Our current system meets some, but not all, of the requirements. We use two custom built laparoscopes, a custom built miniature projector, a standard camera, and a s...