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2018 DEC 22 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- From Washington, D.C., NewsRx journalists report that a patent application by the [...]

Chroma subsampling involves the compressing of color information in video footage, to reduce the overall storage size and bitrate of video files. It's a method used across multiple video codecs [...]

ABSTRACT Marble slabs with rough surface have captured a large share in the market of ornamental stones in recent years. There are many different methods of stone surface treatment currently [...]

Most lighting simulation programs represent color as RGB triplets in a device-dependent color space such as ITU-R BT.709. Implicit in this representation is the assumption that interreflections between colored surfaces can be accurately calculated using three separate color bands. We demonstrate that while this assumption generally holds for most architectural finishes, it can result in substantial prediction errors for saturated colors., 1 INTRODUCTION Most lighting simulation programs represent color as combinations of red, green, and blue. Users specify colors as RGB triplets, the programs perform separate radiative flux transfer calculations for [...]

Tubular light guides are novel technology means to achieve energy savings in windowless interiors in the core of buildings and their design and evaluation posed a considerable challenge to illuminating engineers due to task complexity. The Hollow Light Guide Interior Illumination Method--HOLIGILM presented analytical calculations predetermining the illuminance distribution on the interior working plane as well as on the top of the interior tubular diffuser. This precise mathematically defined daylight transport taking into account both sun and sky luminance, tube size as well as cupola and inner diffuser transmittance is derived from basic relations and backward ray-tracing procedures and expressed in complex formulae and a developed computer program HOLIGILM 4.2 for quick calculations of the exact interior illuminance distribution. This program was used to calculate interior illuminance and document with examples modeled indoor illuminance distribution considering standard daylight situations and real light propagation through hollow tube. Keywords--tubular lights-guide, energy efficient daylighting, HOLIGILM calculation tool., 1 INTRODUCTION Contrary to conventional windows and skylights the recent advanced daylighting systems with high performance glazing and reflecting surfaces or hollow light guides are redirecting daylight deeper inside the [...]

Widespread adoption of LEDs requires reliable high-performance dimming. But controlling LEDs is not as simple as controlling an incandescent light. There are a number of factors to consider to ensure [...]

Now and then, crazy things happen in the world of digital image processing. Remember the introduction of the first digital photography camera, and the battle for megapixels that came with [...]