JAI RMC-4200GE User Manual

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JAI RMC-4200GE User Manual Manual pdf 20 page image

RM/TM-4200GE Series20 OperationExample: A lens that gives a 5x optical field of view in the RPDZ 4x setting will give 20x total magnification.Example: A lens that gives a 5x optical field of view in the RPDZ 4x setting will give 20x total magnificationTable 2 Scan Area Start Points.Scan Area Start Point(Line)Effective Area(Lines x Pixels)Frame Rate (FPS)Dual Tap Single TapA Full Scan 1 2048 x 2048 14.79 8.04B Centered 1000Lines 525 1000 x 2048 27.97 15.20C Centered 500Lines 775 500 x 2048 49.63 26.97D Centered 250Lines 901 250 x 2048 79.92 43.43T Full Scan 2x2 Binning 1 1024 x 1024 26.42 15.09Z Resolution Proportional DigitalZoom 512 x 512 31.98 20.40U Programmable Scan Area 1-2048 1-2048 x 20483.2 Bayer Color Filter (Color Versions)JAI Inc. AccuPiXEL series color cameras are high-resolution, high-speed progressive scan CCD cameras. Theinterline transfer, progressive scan CCD permits full vertical and horizontal resolution of images acquired atvery high shutter speeds. The electronic shutter, which has speeds to 1/16,000 sec., can be resetasynchronously by external pulse control. Uniform square pixels provide superior image definition in anyorientation. On-chip micro lenses mean increased sensitivity.3.2.1 Color Filter ArrayJAI Inc. AccuPiXEL cameras use Bayer CFA (color filter array) as their standard primary color filter. This filterprovides the most popular color interpolation supported by numerous software suppliers.The digital format allows the camera to output accurate pixel data, including the color information. When thedata is stored in the frame buffer of a framegrabber or computer, the color information is easily manipulatedto restore the original color images. Because the color filter array contains only a single R, G or B color in eachpixel, the restored image has to fill in colors in the missing pixel locations. The software uses neighboring pixelinformation to “guess” the missing colors to make smooth, clear images. This is called “color interpolation.”Today’s high-speed computers allow such color interpolation to be done almost in real time. Because thesecameras do not contain internal color processing circuitry, they are smaller and less expensive than full-function color cameras.3.2.2 Bayer Color Filter Array (CFA)The Bayer CFA is an R, G, B primary color filter array. This is the most widely accepted CFA for the single-chipCCD progressive scan format. This type of array layout has a specific order for each color’s pixels. Since thehuman eye’s resolution and color recognition are highest at green, the CFA contains two greens per each redand blue.It is critical for the framegrabber and color interpolation to know where the individual color pixels existrelative to sync (LDV and FDV) timing.This requirement makes digital output the preferred choice, because the timing relationships are very accurate