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...

An intelligent virtual human should not be limited to gesture, face and voice for the expression of emotion. The arts have shown us that complex affective states can be expressed resorting to lights, shadows, sounds, music, shapes, colors, motion, among many others [1]. Thus, we previously proposed that lighting and the pixels in the screen could be used to express emotions in virtual humans [2...

Diffraction, interference, dispersive refraction and scattering are four wavelength-dependent mechanisms that produce iridescent colors. The per-wavelength sampling required to render iridescence significantly increases the computation required to render iridescence in real time. Furthermore, diffraction exhibits much higher frequencies and sharper peak responses than interference and dispersiv...

Searching for an object model is considered to be one of the most desirable and yet difficult searches. The problem is made difficult by the presence of clutter in a scene, as well as the fact that objects may be imaged under different lighting conditions. We have developed a feature localization scheme that finds a set of locales in an image. Our object search method matches image locales with...

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...

This paper describes a novel system for building seamless texture maps for a surface of arbitrary topology from real images of the object taken with a standard digital camera and uncontrolled lighting. In our application we wish to take a sparse set of real images of a 3D object, and apply the images to an approximate surface model of the object to generate a high quality textured model. In pra...

Adapting games to the miniature screens and limited processing power of mobile phones is quite a challenge. To accommodate these technical limitations, mobile games are often twodimensional (2D), tile-based, and seen from above. Such games rarely present much creativity with respect to dynamic lighting. Textures are merely plastered onto the tiles. A recent game release has, however, shown that...