The Single Fiber Scanning Endoscope (SFSE) is a miniature endoscope with unique features that promises to open new minimally invasive procedures for previously inaccessible diseases. There is a need for enhancement of depth cues and 3D measurement in procedures using monoscopic endoscopes. The SFSE uses scanning acquisition that gives it unique imaging properties which are advantageous for 3D v...

Background: Lighting is a basic need for human beings and affects their physical, physiological, and psychological behavior. The required level of lighting for visual performance must be provided in order to ensure health and wellbeing. Students spend much of their time studying in libraries, and thus, sufficient lighting is necessary in libraries. Therefore, the aim of the present study was to...

In this paper, we present a new multi-screen interactive environment. The system extracts a silhouette of the participant for driving the interaction using a method that overcomes the inherent problems associated with traditional chroma-keying, background subtraction, and rear-light projection methods. We present an approach for generating a robust silhouette of the participant using specialize...

FXPAL’s Pantheia system enables users to create virtual models by ‘marking up’ a physical space with pre-printed visual markers. The meanings associated with the markers come from a markup language that enables the system to create models from a relatively sparse set of markers. This paper describes extensions to our markup language and system that support the creation of interactive virtual ob...

We introduce Interactive Perception as a new perceptual paradigm for autonomous robotics in unstructured environments. Interactive perception augments the process of perception with physical interactions, thus integrating robotics and computer vision. By integrating interactions into the perceptual process, it is possible to manipulate the environment so as to uncover information relevant for t...

We present an interactive system to create 3D models of objects of interest in their natural cluttered environments. A typical setting for 3D modeling of an object of interest involves capturing images from multiple views in a multi-camera studio with a mono-color screen or structured lighting. This is a tedious process and cannot be applied to a variety of objects. Moreover, general scene reco...

this study was conducted to compare the effects of different illumination programs on the cellular and humoral immune system using 320 one day–old male broilers (arian 386) in a completely randomized design of 8 replications (10 birds each). the four assayed lighting schedules were comprised of: 1- continuous lighting (control), 2- decrease then sudden increase of lighting, 3- decreasing-gradua...

We present the algorithms and implementation of an interactive system to capture and interpret an architectural design from a collection of small-scale physical elements. The user sketches a proposed design by arranging 3D wall modules and simple markers for windows, materials, and other design features on a table. The color-coded elements are captured by a camera mounted above the scene and re...

We propose a novel rendering method which supports interactive BRDF editing as well as relighting on a 3D scene. For interactive BRDF editing, we linearize an analytic BRDF model with basis BRDFs obtained from a principal component analysis. For each basis BRDF, the radiance transfer is precomputed and stored in vector form. In rendering time, illumination of a point is computed by multiplying ...

The rapidly increasing number of digital lighting systems embedded into architectural structures offers great possibilities for interaction. One prominent example are media façades, which are created by equipping the outer shell of a building with light emitting elements of various kinds. As a first step towards exploiting their full potential, in terms of providing interactive experiences, and...