FLIR Tau Camera TAU-0035-00-10 User Manual page 33

Tau User's Manual
Image-Orientation Mode:
one or both to change the orientation of the video image.
Invert: The normal image is flipped vertically. The
pixel on the upper-left corner of the detector array
is displayed on the lower-left corner of the video
display in Invert mode. Invert is used when
mounting the camera upside-down. Invert applies
to analog, BT.656, CMOS, and LVDS video.
Revert: The normal image is flipped horizontally. The pixel on the upper-right corner of
the detector array is displayed on the upper-left corner of the video display in Revert
mode. Revert mode produces a mirror-image of Normal mode; use for applications
where the camera is imaged through a fold-mirror. Revert applies to analog and
BT.656 video only.
Note
Any time the image orientation mode is inverted, a flat-field correction automatically takes
place. Adjusting image orientation should be followed by a flat-field correction in all modes.
Pan & Zoom, Zoom:
camera has a built-in 2× and 4× digital zoom
capability. The Tau 160 camera has a built-in
2× digital zoom. The Zoom check boxes are
used to turn on/off the camera zoom. With
the Unzoom box checked, the Tau camera
displays the full sensor array image (NTSC:
320 × 240 pixels or PAL 320 × 256 pixels).
When the Zoom 2x box is checked, a smaller
central region of the sensor array is mapped
to the video output creating the zoom effect.
For NTSC and PAL video formats in 2× zoom
mode, 160 × 120 and 160 × 128 pixels,
respectively, are mapped to the analog video
output. When the Zoom 4x box is checked,
80 × 60 (NTSC) and 80 × 64 (PAL) pixels,
respectively, are mapped to the analog video output. This reduced region of the array is called
the zoomed array region. The BT.656 video also has the zoom feature, but the CMOS and
LVDS do not.
Pan & Zoom, Pan:
within the full array area. This digitally simulates panning and tilting. Panning and tilting are
defined as moving the camera image in the horizontal and vertical axes, respectively.
The Pan/Tilt limits for 320 cameras are the same in both 2× and 4× mode.
The Pan/Tilt limits for 160 cameras are ±40/±30; or the same as the Fine range.
You can adjust the vertical and horizontal sliders to move the zoomed array region.
When the fine box is not checked the slider controls move the zoomed image from edge to
edge of the full sized array. Checking the fine box increases the sensitivity of the slide control so
that the zoomed array moves one half the total range but all step values are achievable. Simple
TAU-0035-00-10, version 150
Two Image-Orientation mode selections are provided. Select
The Tau 320
When in either zoomed mode, you can move the zoomed array region
June 2011
3—Basic Operation of the Tau and GUI
Select to
enter offsets
Click to
center
Tilt
slider
Pan
slider
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