Axis Communications AXIS P3365V PDAs & Smartphones User Manual


 
AXIS P3365-V Fixed Dome Network Camera
Video and Audio
Wide Dynamic Range
Wide dynamic range (Dynamic Contrast) can improve the exposure when there is a considerable contrast between light and dark
areas in the image. Enable WDR in intense backlight conditions. Disable WDR in low light conditions for optimal exposure.
Note
This setting is only possible when using automatic exposure control.
Exposure Settings
Congure the exposure settings to suit the image quality requirements in relation to lighting, frame rate and bandwidth
considerations.
Exposure value - Use the Exposure value slider to adjust the overall brightness of the image.
Exposure control - This setting is used to adapt to the amount of light used. Automatic is the default setting and can be used in
most situations. The shutter speed is automatically set to produce optimum image quality. Flicker-free 50 or 60 Hz is used to remove
icker which can be caused by uorescent and other light sources. The Hold current option locks the current exposure settings.
Enable Backlight compensation - Enable this option if a bright spot of light, for example a light bulb, causes other areas in
the image to appear too dark.
Exposure zones - This setting determines which part of the image is used to calculate the exposure. For most situations, the Auto
setting can be used. For particular requirements, select a predened area.
Shutter & Gain
The shutter and gain settings affect the amount of motion blur and noise in the image. To adapt to different lighting, available
storage space and bandwidth, it is often necessary to prioritize either low motion blur or low noise. The Axis product allows
using different prioritization in normal light and in low light.
Shutter speed is related to the amount of time the shutter is opened and is measured in seconds (s). A slow shutter speed allows
more light to reach the sensor and can help produce a brighter image in low light situations. On the other hand, a slow shutter
speed can cause moving objects to appear blurry.
Set Shutter to
Auto to set the shutter speed automatically. If required, use Max shutter to limit the shutter speed to prevent the frame
rate from being reduced.
For example, to get 30 fps, set Max shutter to 1/30.
Fixed to use a xed shutter speed.
Gain, measured in decibel (dB), is the amount of amplication applied to the image. A high gain may provide a better image in low
light situations but will increase the amount of image noise.
Set Gain to
Auto to set the gain automatically. If required, use Max gain to limit the applied gain.
Fixed to use a xed gain.
When Shutter and Gain are both set to Auto, it is possible to set the Priority between low motion blur and low noise manually and to
use a different Priority in Normal Light and in Low Light.
Example
Consider an area where people or vehicles move during the day, but where there should be no movements during night. To be able to,
for example, recognize faces or license plates, move the normal light priority slider toward low motion blur. At nighttime, motion
detection is more important than identication. Motion blur is acceptable and since low light can cause a lot of noise, move
the low light priority slider toward low noise.
Example
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