Tunable leaky-mode resonant silicon-nitride pixels providing red/green/blue spectral lines are analyzed. Critical dimensions, rate of tuning, linewidths, and polarization properties are quantified. ©2007 Optical Society of America OCIS codes: (050.1950) Diffraction gratings; (310.2790) guided waves; (120.2440) filters. Microelectromechanical systems (MEMS) methods are useful for tuning the spec...

In this paper we show how to use two-colored pixels as a generic tool for image processing. We apply twocolored pixels as a basic operator as well as a supporting data structure for several image processing applications. Traditionally, images are represented by a regular grid of square pixels with one constant color each. In the twocolored pixel representation, we reduce the image resolution an...

Christophe Schlick Laboratoire Bordelais de Recherche en Informatique Talence, FRANCE We present a picture encoding technique for RGB color images that uses nonlinear quantization of pixel values to achieve a much higher dynamic range than the usual 256 values per primary color. The encoding uses only 24 bits per pixel. } Introduction } Global illumination algorithms (radiosity, Monte Carlo ray...

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There are several different ways in which image files can be compressed. Compressing an image is significantly different than compressing raw binary data. Image compression addresses the problem by reducing the amount of data required to represent a digital image. The uncompressed image data requires a large storage capacity and transmission bandwidth. The purpose of the image compression algor...

Dense stereo vision has evolved into a powerful foundation for the next generation of intelligent vehicles. The high spatial and temporal resolution allows for robust obstacle detection in complex inner city scenarios, including pedestrian recognition and detection of partially hidden moving objects. Aiming at a vision architecture for efficiently solving an increasing number of vision tasks, t...