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Video Tracking Mode
5
Overview
To enable Video Tracking mode press the right joystick button; a tracking box is shown on the
video. Manually center the target in the tracking box by pointing the camera using the joystick.
Press the right joystick button again to engage the target and begin tracking. When a target is
selected, the tracking box is no longer shown and the Tracking icon is shown on the display.
To show the tracking box after engaging a target, select show tracking box (refer to "Tracker:" on
page 21). The tracking box can be resized (hold the right joystick button and twist the joystick).
Acquisition is easiest when the target has clear contrasts, rigid edges, and a predictable rate of
motion. For example, it is easier for the system to track a boat in the open ocean than when the
shoreline is in the background because the boat has a clearer contrast.
The tracker uses a gray scale frame from either the IR or the visible camera. The visible camera
color frame is converted to a gray scale frame for the tracker. Because of this conversion, what is
seen on the visible camera as very distinct, may sometimes appear less so to the tracker.
Once a target is being tracked by one of the cameras, that camera will continue to provide video to
the tracker even if the active camera is changed. In other words, a target can be tracked using the
IR camera while the visible camera video is being shown. If the target is lost (acquisition gate
reappears), manually reacquiring the target will begin tracking using the current active camera.
Consider the following in order to maintain an active tracking session:
Acquisition state—Use the joystick to move the camera. Zoom in to more clearly focus on the
target and initiate tracking by pressing the right joystick button.
432-0012-01-10 Version 110
• Very fast turns by the target that change the aspect ratio of the target may cause confusion
• Very fast turns by the tracking vessel or heavy swells may challenge the ability of the
camera to keep the target in view. Stabilization modes are recommended.
Joystick Buttons: Left - Exit Video Tracking mode
Figure 5-1: Video Tracking Mode—Acquisition state
Right - Acquire target, engage tracking
August 2020
Acquisition
gate
32
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