Sirsalliyan Small Air Compressor

Rand Ssr

Of Video Surveillance In The Image Enhancement Technology And Its Applications

I. Background In the fog, dust and other inclement weather or low light conditions significantly reduce image contrast, one can not derive useful information. Moreover, the long-term view of low-quality video may increase the burden on people's eyes, prone to visual fatigue and even dizziness. In the event of heavy fog, rain, dust and other inclement weather, the outdoor scene image contrast and color will be changed or degradation of the image contains many of the features are covered or blurred by the degradation of the image, for various Monitor Have caused great difficulty, therefore, should give full play Monitoring Video performance, we must monitor the video image enhancement processing. In military reconnaissance and surveillance, in order to implement the correct command to obtain victory in war, modern War A higher military reconnaissance requirements, extensive application of advanced scientific Technology Further expand the scope of surveillance to improve the timeliness and accuracy of detection. Therefore, military reconnaissance, surveillance video used in the quality of particular importance, the degradation of video image recognition and processing of information may result in bias, but the consequences of this bias is very serious, so the video enhancement technology came into being.

2, video enhancement algorithm (Retinex algorithm) the basic principles of

Retinex (retina "Retina" and the cerebral cortex "Cortex" in the abbreviation) theory is based on scientific experiments and based on scientific analysis of the human visual system based on (HumanVisualSystem) theory of image enhancement. The basic principle of the algorithm model was first used by EdwinLand (Edwin? Rand) in 1971 proposed a theory called the color and color constancy based on the proposed image enhancement based on the theory Methods. Retinex theory of the basic content is the color of an object is an object of the long wavelength (red), medium (green) and short wave (blue) light reflectivity of the decision, rather than the absolute value of the reflected light intensity of the decision; object color not all of the effects of non-illumination, with consistency, that Retinex theory is based on a sense of consistency of color (color constancy) based.

Different from the traditional image enhancement algorithm, such as linear, nonlinear transform, image sharpening can only enhance the image of a certain class of features, such as the dynamic range compressed image, or enhance the edge of the image, Retinex can In the dynamic range compression, edge enhancement and color constancy three balanced, so can a variety of different types of images enhanced adaptability. Retinex is because many good properties, so that Retinex algorithm has been widely used in many applications.

Retinex in many to the core of the algorithm, the single-scale (Single-ScaleRetinex, SSR) algorithm, multi-scale (Multi-ScaleRetinex, MSR) algorithm is the most representative and most sophisticated algorithms.

Single scale (Single-ScaleRetinex, SSR) algorithm principle

Made under the Land theory, a given image S (x, y) decompose into two different images: reflective object image R (x, y) and incident light image L (x, y), its Schematic of the following: Schematic

For each observation point in the image S (x, y), using the formula can be expressed as:

S (x, y) = R (x, y)? L (x, y) (1)

It Retinex theory, the color of an object by object to the decision of the reflectivity of light, but objects to the reflectance of light is the inherent property of the object itself, and not the absolute value of light intensity dependence. Therefore, each pixel by calculating the relationship between the relative brightness, the image can be done in the calibration of each pixel to determine the pixel color.

Single scale (Single-ScaleRetinex, SSR) algorithm in the logarithmic domain is used for:

(2) According to the above (2) type of theory, Retinex theory of image enhancement, the key is from the original image information to calculate the effective brightness of the image L (x, y). But the brightness of the image from the original image in the mathematical calculation is a singular issue, so can only be approximated by mathematical approaches to estimating the brightness of the image. Retinex algorithm in the development of history, there have been around the inverse square of the form, exponential and Gaussian exponential, but the increase in single-scale Retinex algorithm, Jason Dobson (Jobson) demonstrated the Gaussian convolution function can be the source provide a more accurate picture of local processing, which can better enhance the image, which can be expressed as:

Equation 3 Where is the constant Matrix , C is the filter radius, and to meet:

Formula 4

About the Author

I am a professional writer from China Manufacturers, which contains a great deal of information about hemp shopping bags , cubs coat, welcome to visit!

Rand Corporation $79.99 Rand Corporation - Premium Photographic Print

Enterasys SSR 8000/8600 FDDI Module 2-Ports SSR-FDDI-02 $1027.75 Enterasys SSR 8000/8600 FDDI Module 2-Ports SSR-FDDI-02

Enterasys SSR 8000/8600 4 Port Serial Module SSR-SERC-04 $1399.52 Enterasys SSR 8000/8600 4 Port Serial Module SSR-SERC-04

Enterasys SSR 8000/8600 4 Port Serial Module SSR-SERCE-04-AA $2647.75 Enterasys SSR 8000/8600 4 Port Serial Module SSR-SERCE-04-AA

Enterasys 8MB PCMCIA Card For SSR 8000/8600 SSR-PCMCIA $221.25 Enterasys 8MB PCMCIA Card For SSR 8000/8600 SSR-PCMCIA

Enterasys CoreWatch Module For SSR SSR-2-CW $134.02 Enterasys CoreWatch Module For SSR SSR-2-CW

Ayn Rand $164.99 Jeanne Stevenson Ayn Rand - Framed Art Print

Scattante SSR Seatpost Collar $14.99 Scattante SSR Seatpost Collar. A simple way to keep your seatpost secure on your Scattante SSR frame.

The Passion Of Ayn Rand $6.99 The Passion Of Ayn Rand

Sally Rand (1904-1979) $19.99 Sally Rand (1904-1979) - Photographic Print

Ayn Rand By Rand, Ayn $25.99 Author: Rand, Ayn Subtitle: Atlas Shrugged/ The Fountainhead Publication Date: 2009/10/01 Binding Type: Paperback Language: English Depth: 3.00 Width: 4.50 Height: 7.25

Calligraphy Rand $105 Calligraphy Rand Eyeglasses for Women are available at BestBuyEyeglasses.com in the following colors: Blue, Brown, Rose/Pink. The style is Square and the frame material is Plastic. Calligraphy Rand Plastic. These frames accept prescription lenses.

Chevrolet Ssr $87.62 High Quality Content by WIKIPEDIA articles The Chevrolet SSR (Super Sport Roadster) was a retractable hardtop convertible pickup truck manufactured by Chevrolet between 2003 and 2005. The truck was based on the longwheelbase Chevrolet TrailBlazer EXTs platform, and featured retro styling and a steel retractable hardtop designed by ASC. The production model was based on the SuperSport Roadster concept car shown at the 2000 Detroit Auto Show. An earlyproduction SSR was the pace car for the 2003 Indianapolis 500 auto race. The 2003 and 2004 models used General Motors Vortec 5300 engine, a 5.3 L 300 hp V8. Performance was not spectacular at 7.7 s to 60 mph (97 km/h) with a 15.9 s/86.4 mph quarter mile run. The 2005 SSR used the 390 hp (291 kW) LS2 V8 also found in the C6 Corvette and Pontiac GTO, and also offered a manual transmission (the sixspeed Tremec) for the first time, as an option. For the 2006 model year, the LS2 engine featured minor modifications that boosted its output to 395 hp (automatic transmission) and 400 hp (manual transmission), respectively. Author: Toll Aaron Philippe, Aaron Philippe/ Miller, Frederic P./ Vandome, Agnes F. Binding Type: Paperback Number of Pages: 140 Publication Date: 2010/06/24 Language: English Dimensions: 5.98 x 9.01 x 0.32 inches

Remington Rand Noiseless Typewriter $79.99 Remington Rand Noiseless Typewriter - Premium Photographic Print

Rand Tower, Minneapolis, Minnesota $24.99 Rand Tower, Minneapolis, Minnesota - Premium Poster

Rand Corporation Headquarters $79.99 Rand Corporation Headquarters - Premium Photographic Print

Security Officers at Rand Corporation $79.99 Security Officers at Rand Corporation - Premium Photographic Print

FRYE Men's Rand Lace Boot $288 FRYE Men's Rand Lace Boot

SSR Rearsets $566.99 CRG SSR Rearsets Fully CNC-milled rearsets with GP-style footpegs feature an extremely aggressive grip pattern and an undercut design Oversized needle bearing pivots in brake and shift pedals for friction-free control actuation Folding shift and brake tips, and rigid foot pegs for damage protection if tipped over Infinitely adjustable mounting positions to fit most riders Fully modular assembly can be set up for conventional or race shift pattern Available in three anodized colors Includes stainless steel hardware Made in the U.S.A.

Cobra / 9-BAND RADAR DETECTOR / SSR 50 $50 Cobra - 9-BAND RADAR DETECTOR - SSR 50

Putco SSR Rail Side Bed Rail $213.99 SSR Rail; Side Bed Rail; Stainless Steel;