JAI RM-2030CL, Руководство пользователя

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TM/TMC/RM/RMC-2030CL
24 Operation
Figure 38. 2x2 Binning
Table 4 Scan Area Start Points
Scan Area Start Point
(Line)
Effective Area
(Lines x Pixels)
Frame Rate (FPS)
Dual Tap Single Tap
A Full Scan 1 1920 x 1080 32.32 16.16
1 Full Scan 2x2 Binning 1 960 x 540 58.65 30.79
5.2 Bayer Color Filter (Color Versions)
JAI Inc. AccuPiXEL series color cameras are high-resolution, high-speed progressive scan CCD cameras. The
interline transfer, progressive scan CCD permits full vertical and horizontal resolution of images acquired at
very high shutter speeds. The electronic shutter, which has speeds up to 1/26,000 sec., can be reset
asynchronously by external pulse control. Uniform square pixels provide superior image definition in any
orientation. On-chip micro lenses mean increased sensitivity.
5.2.1 Color Filter Array
JAI Inc. AccuPiXEL cameras use Bayer CFA (color filter array) as their standard primary color filter. This filter
provides 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 the
data is stored in the frame buffer of a frame grabber or computer, the color information is easily manipulated
to restore the original color images. Because the color filter array contains only a single R, G or B color in each
pixel, the restored image has to fill in colors in the missing pixel locations. The software uses neighboring pixel
information 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 these
cameras do not contain internal color processing circuitry, they are smaller and less expensive than full-
function color cameras.
5.2.2 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-chip
CCD progressive scan format. This type of array layout has a specific order for each color’s pixels. Since the
human eye’s resolution and color recognition are highest at green, the CFA contains two greens per each red
and blue.