InfraTec VarioCAM User Manual page 61

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User Manual for the Thermographic System VarioCAM

hr head

9 Operation

filtering for reducing noise is performed. For using Premium saving, the function is to be activated in the

menu and the data are to be saved by

out of the live mode.

The menu item "ResEnhanc"* (Resolution Enhancement) activates a hardware-based, resolution-

improving recording method. The thermal image is optically scanned several times, whereas, by shifting

the pixel allocation by respectively half the pixel width, the geometric resolution of (384 x 288) is

increased to (768 x 576) or from (640 x 480) to (1,280 x 960) pixels, accordingly (micro-scanning). Using

the Resolution Enhancement function requires the fixed positioning of the thermographic system (tripod)

and only makes sense to be applied to fixed objects to be measured at a constant temperature.

The menu item "DynResEnh"* (Dynamic Resolution Enhancement) activates a software-based image

improvement method. Using this feature requires special analysis tools*.

The menu item "Return Live" is enabled by default. After having activated the focus mode the camera

takes you back to the live mode by default after approx. 10 seconds. If this function is deactivated the

camera stays in focus mode until the menu will be exited by choosing Enter.

Activated functions are respectively checkmarked in the menu.

Menu item "Calib"

Fig. 110

Menu "Settings" – "Calib"

Available calibration ranges in the VarioCAM

hr head are listed in the submenu "Calib" (see Fig. 110)

and, by respectively selecting them, permit toggling between them. The number of calibration ranges is

dependent on the version of equipment. Also after delivery of the thermographic system, the temperature

measurement range can be extended further by hardware extensions and further calibrations of the

system or measuring can be performed using additional lenses.

The yellow-marked No. of the calibration range shows that, for the currently attached lens, valid

calibration data are available in the thermographic system. Thereby, the type and serial number of the

lens are checked. Should no valid calibration data be available for the attached lens, the system will mark

all available data by shading the No. of the calibration range either light-red (calibration data for similar

type of lens, no accordance with serial number) or dark-red (neither the type of lens nor the serial number

conform to available calibration data). Apart from the No. of the calibration range, also the status window

(above the colour palette) will be shaded light-red or dark-red accordingly. During operation of the

system, this helps visualise at all times if valid calibration data are missing, regardless of having to check

the calibration range in the menu Settings.

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