Lumenera Lt-C1610, Руководство пользователя

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Teledyne Lumenera Lt Series Feature Reference • 77
Display Name Feature & Values Description Device
Version
& View
Pixel Color Filter PixelColorFilter Indicates the type of color filter applied to the
image.
1.00
Invisible
None None No color filter.
BayerRG BayerRG Bayer Red Green filter.
BayerGB BayerGB Bayer Green Blue filter.
BayerGR BayerGR Bayer Green Red filter.
BayerBG BayerBG Bayer Blue Green filter.
5.7.2 Width and Height Features for Partial Scan Control
Width and Height controls, along with their respective offset settings, allow the camera to grab a
region of interest (ROI) within the full image frame. Besides eliminating post acquisition image
cropping done by software in the host computer, a windowed ROI grab reduces the transfer
bandwidth required since less pixels are transmitted.
5.7.2.1 Vertical Cropping (Partial Scan)
The Height and Vertical Offset features, used for vertical cropping, reduce the number of video
lines grabbed for a frame. By not scanning the full height of the sensor, the maximum possible
acquisition frame rate is proportionately increased, up to the Lt Camera maximum.
The following figure is an example of a partial scan acquisition using both Height and Vertical Offset
controls. The Vertical Offset feature defines at what line number from the sensor origin to acquire
the image. The Height feature defines the number of lines to acquire (to a maximum of the
remaining frame height). Note that only the partial scan image (ROI) is transmitted to the host
computer.
Vertical Offset
Height
Note: In general, using short exposures at high frame rates will exceed the maximum bandwidth transfer
speed, when the camera buffer memory is filled. The tables below (for different models) describe frame
rate maximums written to internal memory that can be sustained during continuous acquisition. Increase
the exposure time, decrease the frame rate, or acquire a limited number of frames, so as to not exceed the
transfer bandwidth.