3.2.4.3.3Automatic Camera Switching Using the Four Camera Option
With the
Example: If cameras 1, 3 and 4 are checked; data will be placed into the frame buffer sequentially from camera 1,3,4,1,3,4…, etc. Clicking Stop! will halt data collection at whichever camera last input data into the frame buffer.
WARNING: Do not check on a camera unless a camera is actually connected to the indicated camera input. An enabled input without a camera will cause data collection to stall when the nonexistent camera is selected.
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3.2.4.3.4Ultracal Operation with the Four Camera Option
If more than one camera is checked on when the Ultracal! menu item is activated, each of the enabled cameras will be separately Ultracal’d in rotation. Data collected from each camera will be individually baseline corrected according to its respective Ultracal reference frame.
3.2.4.3.5
The
3.2.4.3.6Acquisition Rate Effects with the Four Camera Option
The data acquisition rate, when cycling between cameras, will depend upon the number and types of enabled processing features. Without any processing overhead the camera switch rate is the frame rate of the camera. This means that if one camera can be input at 30 frames per second, then camera switching will progress at 30 switches per second. If your system is not capable of sustaining this rate, then the resulting rate will be whatever maximum rate can be sustained.
When various types of image processing, or complex computations are being performed, the acquisition rate may slow down. These effects will delay the switching rate accordingly. The rule affecting the switching rate is that it will take as long to switch to the next camera as it takes to acquire and process data for the current camera.
Note: Image processing rules apply identically to the data inputs of all enabled cameras. I.e. If frame averaging is enabled then each camera input will be frame averaged before switching to the next camera. It is not possible to average inputs from multiple cameras during the data collection process. However this can be done using the Post Processing feature.
3.2.4.4Trigger
The Trigger panel in the Capture dialog box allows you to selectively control when an image is to be captured by the LBA. The selected trigger Type will govern which of the other selections you will need to make. The four Type choices are:
•CW: Choose this type if your laser operates in a continuous wave manner, or pulses at a repetition rate that will appear to your video camera as continuous. In CW mode, none of the other settings in this panel are applicable.
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