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C3463M (10/09) 27
SENSOR SCAN MODE
(Applies only to 27X and 35X models.)
Sensor scan mode controls the internal processing of the camera's image sensor. The data scanned from the image sensor at each field time is
used for the internal image control algorithms and digital signal processing (DSP).
Note: When changing from PROGRESSIVE to INTERLACED, or vice-versa, the camera restarts to establish the new setting.
There are two sensor scan modes:
PROGRESSIVE (default): Produces a higher quality image by using each line scanned from the image sensor.
INTERLACED: Produces a slight increase in sensitivity by using blended data from pairs of lines scanned from the image sensor.
When sensor scan mode is set to INTERLACED, the wide dynamic range and image enhancement features are automatically disabled. There may
be additional effects, such as a degradation of the signal-to-noise ratio, degradation of the color reproduction, and a loss of motion detection for
presets configured with motion detection.
FIELD ALIGN
(Applies only to 27X and 35X models.)
Field align determines whether the camera produces progressive segmented frame output (PsF) or interlaced frame output. Analog video from the
camera is always output in separate fields as required for compatibility. This feature allows PsF to be recombined by an encoding device without
a time difference between fields, as is typically seen from interlaced analog video output. Enabling field align requires that the encoding device
you are using always combines the odd and even fields in the specified order.
There are three field alignment settings:
OFF (default): Field alignment is disabled. Use this setting if you are using an analog device/system or a digital encoder that does not support
PsF.
ODD: Arranges the odd field for a particular video frame before the even field for that frame.
EVEN: Arranges the even field for a particular video frame before the odd field for that frame.
Notes:
• If you enable field alignment by selecting ODD or EVEN, you must disable any deinterlacing settings for the encoding device to achieve
maximum resolution.
• The ODD and EVEN settings require that the sensor scan mode is set to PROGRESSIVE. If field align is set to ODD or EVEN, the sensor scan
mode automatically changes to PROGRESSIVE.
ELECTRONIC IMAGE STABILIZATION
(Applies only to 35X models.)
Electronic image stabilization is a feature of the camera that can compensate for some forms of external influences. In all cases, care should be
taken to make sure that any dome system is mounted to a rigid location.
In the event that vibration is introduced to the dome system, a user can select one of the electronic image stabilization settings in the menu. The
available settings are OFF, 5 Hz, and 10 Hz. Users should apply each of the settings to the camera to see which one best addresses the vibration
that is affecting the video quality.
Electronic image stabilization will not correct for all ranges of vibration. If either of the settings fails to eliminate the vibration seen in the video,
other measures should be taken to isolate the vibration or to seek a more rigid mounting location.
Notes:
• When electronic image stabilization is applied, digital slow shutter and wide dynamic range are disabled. Zoom, image resolution, and
viewing angle are also limited when this feature is activated.
• Electronic image stabilization cannot be used while in a preset that has motion detection activated.