Real-Time Adaptive Radiometric Compensation

Recent radiometric compensation techniques make it possible to project images onto colored and textured surfaces. This is realized with projector-camera systems by scanning the projection surface on a per-pixel basis. With the captured information, a compensation image is calculated that neutralizes geometric distortions and color blending caused by the underlying surface. As a result, the brightness and the contrast of the input image is reduced compared to a conventional projection onto a white canvas. If the input image is not manipulated in its intensities, the compensation image can contain values that are outside the dynamic range of the projector. They will lead to clipping errors and to visible artifacts on the surface. In this article, we present a novel algorithm that dynamically adjusts the content of the input images before radiometric compensation is carried out. This reduces the perceived visual artifacts while simultaneously preserving a maximum of luminance and contrast. The algorithm is implemented entirely on the GPU and is the first of its kind to run in real-time

The adaptation of overhead projection techniques in the development of the orientation phase of selected physical education activity units

Thesis (Ed.M.)--Boston Universit

A survey of recent literature to determine the features of mathematics, science, English, and social-studies classrooms necessary to meet a modern educational program at the secondary-school level

Thesis (Ed.M.)--Boston University, 1949. This item was digitized by the Internet Archive

Content-adaptive lenticular prints

Lenticular prints are a popular medium for producing automultiscopic glasses-free 3D images. The light field emitted by such prints has a fixed spatial and angular resolution. We increase both perceived angular and spatial resolution by modifying the lenslet array to better match the content of a given light field. Our optimization algorithm analyzes the input light field and computes an optimal lenslet size, shape, and arrangement that best matches the input light field given a set of output parameters. The resulting emitted light field shows higher detail and smoother motion parallax compared to fixed-size lens arrays. We demonstrate our technique using rendered simulations and by 3D printing lens arrays, and we validate our approach in simulation with a user study

The present status of certain audio-visual aids in the biology classrooms of the public senior high schools in the state of Massachusetts

Thesis (Ed.M.)--Boston University, 1948. This item was digitized by the Internet Archive

Real-Time Adaptive Radiometric Compensation

Recent radiometric compensation techniques make it possible to project images onto colored and textured surfaces. This is realized with projector-camera systems by scanning the projection surface on a per-pixel basis. With the captured information, a compensation image is calculated that neutralizes geometric distortions and color blending caused by the underlying surface. As a result, the brightness and the contrast of the input image is reduced compared to a conventional projection onto a white canvas. If the input image is not manipulated in its intensities, the compensation image can contain values that are outside the dynamic range of the projector. They will lead to clipping errors and to visible artifacts on the surface. In this article, we present a novel algorithm that dynamically adjusts the content of the input images before radiometric compensation is carried out. This reduces the perceived visual artifacts while simultaneously preserving a maximum of luminance and contrast. The algorithm is implemented entirely on the GPU and is the first of its kind to run in real-time

Improving the quality of the oral report

Thesis (Ed..M.)--Boston University, 1949. This item was digitized by the Internet Archive

Characteristics of flight simulator visual systems

The physical parameters of the flight simulator visual system that characterize the system and determine its fidelity are identified and defined. The characteristics of visual simulation systems are discussed in terms of the basic categories of spatial, energy, and temporal properties corresponding to the three fundamental quantities of length, mass, and time. Each of these parameters are further addressed in relation to its effect, its appropriate units or descriptors, methods of measurement, and its use or importance to image quality

Overstimulated - An Immersive, Multimedia Art Installation

This thesis provides the explanation, inspiration, research and progression of an immersive, multimedia art installation that emulates the idea of a “sexual dystopia.” It explores how our dichotomy of inadequate sex education and hypersexual, gender-based media is resulting in a dystopian sexual reality for women in particular. The work portrays a future world in which sexual and fertility technology is so advanced and accessible that real men and women no longer interact. As a result, women and objects become one in the same. Female literary icons are over-sexualized to suggest that porn-culture is a by-product of a historical framework that views women as commodities to be obtained. The dull, clinical approaches to sex education are juxtaposed against the exploitative content kids are exposed to at an increasingly young age. The steps, decisions and challenges to approaching a large-scale art installation are discussed