Camera Properties
The classification of the cameras is based on the following Channel class MultiCam parameters: Imaging, Spectrum, DataLink, and ColorMethod.
The enumerated parameter Imaging specifies the geometry of the camera sensor; possible values are:
Value |
Description |
AREA |
The camera is an area-scan model. An area-scan camera is based on a 2D imaging sensor; it delivers individual image frames composed of a fixed amount of lines, each containing a fixed amount of pixels. |
LINE |
The camera is a line-scan model. A line-scan camera is based on 1D imaging sensor; it delivers individual image lines composed of a fixed amount of pixels. |
TDI |
The camera is a TDI line-scan model. A particular type of line-scan camera using the Time Delayed Integration technology (TDI). It is based on a 2D imaging sensor having a small amount of lines; like any other line-scan camera, it delivers individual image lines composed of a fixed amount of pixels. |
Note. The board's behavior is the same when Imaging is TDI instead of LINE; however TDI cameras exhibit less operational modes since they lack an electronic shutter.
The enumerated parameter Spectrum specifies the spectral sensitivity of the camera; possible values are:
Value |
Description |
BW |
The camera delivers a monochrome image obtained from an image sensor operating in the human visible domain of the light spectrum. |
IR |
The camera delivers a monochrome image obtained from an image sensor operating in the infra-red domain of the light spectrum. |
COLOR |
The camera delivers a color image. |
Note. The board's behavior is exactly the same when Spectrum is IR instead of BW.
The enumerated parameter DataLink specifies the data transfer method used by the camera; the unique possible value is:
Value |
Description |
CAMERALINK |
The camera delivers a digital video signal complying to the Camera Link standard. |
The enumerated parameter ColorMethod specifies the color analysis method used by the camera; possible values are:
Value |
Description |
NONE |
The camera delivers a monochrome image. |
BAYER |
The camera uses a single imaging sensor coated with a Bayer Color Filter Array and delivers the raw Bayer CFA data as a single video data stream embedding the RGB information. |
PRISM |
The camera uses a wavelength-separating prism to feed three distinct imaging sensors. The color information is available as three R, G, B video data streams. |
RGB |
The camera uses a coated sensor and an internal processor to reconstruct the full color information. The color information is available as three R, G, B video data streams. |
TRILINEAR |
The camera uses three parallel sensing linear arrays of pixels exhibiting different wavelength sensitivities. The color information is available as three R, G, B video data streams. |
Notes
- This board provides a limited support of TRILINEAR cameras since the scan-delay compensation function is not available.
- The board's behavior is the same when ColorMethod is TRILINEAR instead of RGB.
- The board's behavior is exactly the same when ColorMethod is PRISM instead of RGB.
The MultiCam channel must be configured for the appropriate class of camera by assigning the appropriate values to the following three parameters: Imaging, Spectrum, and ColorMethod. The valid combinations of values are listed hereafter:
Imaging |
Spectrum |
ColorMethod |
Camera class |
AREA
|
BW |
NONE |
Monochrome area-scan cameras Visible spectrum |
IR |
NONE |
Monochrome area-scan cameras Infra-red spectrum |
|
COLOR |
BAYER |
Color area-scan cameras Raw BAYER data output |
|
RGB |
Color area-scan cameras RGB data output |
||
PRISM |
3-CCD Color area-scan cameras RGB data output |
||
LINE
|
BW |
NONE |
Monochrome line-scan cameras Visible spectrum |
IR |
NONE |
Monochrome line-scan cameras Infra-red spectrum |
|
COLOR
|
BAYER(*) |
Color line-scan cameras Raw BAYER data output |
|
RGB |
Color line-scan cameras RGB data output |
||
PRISM |
3-CCD Color line-scan cameras RGB data output |
||
TRILINEAR |
Color line-scan cameras 1 tri-linear sensor RGB data output |
||
TDI |
BW |
NONE |
Monochrome Time-Delay-Integration line-scan cameras Visible spectrum |
IR |
NONE |
Monochrome Time-Delay-Integration line-scan cameras Infrared spectrum |
|
COLOR |
PRISM |
3-CCD Color Time-Delay-Integration line-scan cameras 3 sensors with filters RGB data output |
(*) Refer to the release notes for availability.