GE Brivo OEC 715 Operator's Manual page 71

Start Up and Operating Control
Noise Filter
Press the "Noise Filter" key to select relative noise filter. Noise Filter is only available when real time imaging
and the image was LIH.
Recursive Filter function provides image noise reduction. Higher levels of recursive filtering produce
smoother (or less noisy) image, but cause more lag when imaging moving objects or anatomy.
Negate
Press the "Negate" key to activate the negate function, and the Negate LED below this key is lighted.
Negate is applied to the current image on the left monitor and to all subsequent images produced until
negate is disabled. The setting of negate can be saved and recalled with the image.
Until disabled, each time Fluoro is pressed on the footswitch or handswitch, the image will be negated.
To disable negate, press the "Negate" key again.
Negate can be applied to static and live images.
NOTE
Image Rotation
Press the left portion of the key to rotate the image counter-clockwise or press the right portion of the key
to rotate the image clockwise.
Zoom & Roam
Press the "Zoom & Roam" key to activate the Zoom & Roam function.
The left monitor image is copied to the right monitor and the left image is displayed by default at one time
the magnification.
Select the "2X" button to increase magnification to two times.
Select the "4X" button to increase magnification to four times.
A square box representing the region of interest is displayed on the right monitor. Drag the box to move the
region of interest.
Select the "Exit" button to close the Zoom & Roam screen.
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