|EVI-D31 is a
pan/ tilt/ zoom video camera with highly sophisticated image
processing technology which enables target objects to be
recognised, through its auto tracking and motion detection
features. The EVI-D31 offers crisp image quality, high speed
wide range pan/ tilt, auto-focus and 12x zoom, Remote Commander®
Controller and AC Adapter.
- High Speed, Wide Range
- X12 Optical Zoom, High
Speed Auto-Focus Lens
- 6 Position Preset
- Auto Tracking/Motion Detector
- RS232C Serial Control
- IR remote Commander
- Time, Date Generator
AT (Auto Tracking)
AT is a function
which continually extracts a subject that the user pre-defines.
After picking up pixels of similar colour and brightness
around the selected subject, EVI-D31 extracts the target
by using the subject model based on light reflection and
non-linear camera processing. There are four modes for pre-defining
follows the moving subject automatically by controlling
the pan & tilt motors without the use of special sensors.
automatically controls the zoom lens to ensure that the
size of the subject remains constant on the screen.
The EVI-D31 employs
the auto exposure and advanced backlight compensation systems
to ensure that the subject remains bright even in harsh
backlight conditions. Because the subject position is know
a comparison can be made between its brightness and that
of the background and the camera subsequently adjusted to
compensate for the conditions.
MD (Motion Detector)
MD basically detects
the difference between the initial reference image and the
current image. The conventional technique employed in MD
uses only the brightness of the video signal. The EVI-D31
uses both the brightness and colour which enables even an
object of the same brightness as the background to detected.