AXIS P3904–R Network Camera

Video

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 predefined 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 fixed shutter speed.

Gain, measured in decibel (dB), is the amount of amplification 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 fixed 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 identification. Motion blur is acceptable and since low light can cause a lot of noise, move

the low light priority slider toward low noise.

Example

If storage space or bandwidth is limited, try using a lower gain. This will reduce image noise and produce smaller image files.

View Area

A view area is a cropped part of the full view. Each view area is treated as a video source in Live View and has its own video stream and PTZ settings.

When setting up a view area it is recommended that the video stream resolution is the same size as or smaller than the view area size. Setting the video stream resolution larger than the view area size implies digitally scaled up video after sensor capture, requiring more bandwidth without adding image information.

To enable, go to Video > Camera Settings and select Enable View Areas.

To add a new view area:

1.Go to Video > View Area.

2.Click Add.

3.The new view area appears under Selected view area. Enter a descriptive name in the Name field.

4.Select an Aspect ratio and a Video stream resolution.

5.A new view area covers the whole image. Use the mouse to move and resize the view area.

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Axis Communications P3904-R user manual Shutter & Gain, Set Shutter to, Go to Video View Area
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P3904-R specifications

Axis Communications P3904-R is a state-of-the-art network camera, specifically designed for mobile surveillance applications. It is an ideal solution for users who require high-quality video monitoring in challenging environments, such as public transport, police vehicles, and emergency services. This device exemplifies Axis’s commitment to delivering cutting-edge technology wrapped in a robust and durable design.

One of the standout features of the P3904-R is its high-resolution imaging capabilities. The camera delivers sharp 1080p video at 30 frames per second, ensuring that even fast-moving scenes are captured with clarity and detail. This is particularly crucial for applications where identifying faces or license plates is necessary. Coupled with Axis’s WDR (Wide Dynamic Range) technology, the camera performs exceptionally well in varied lighting conditions, providing clear footage even in situations where light may be uneven.

The P3904-R also boasts a compact and rugged design, built to withstand the rigors of mobile use. It is rated IP66 and IK10, making it resistant to harsh weather conditions and vandalism. This durability ensures that the camera remains operational in diverse environments, from urban streets to remote areas.

Another significant technology employed in the P3904-R is the integration of PoE (Power over Ethernet). This allows for seamless installation by powering the device through the network cable, eliminating the need for separate power supplies. The camera also supports H.264 and Motion JPEG compression formats, enabling efficient storage management and optimized bandwidth usage.

Furthermore, the P3904-R is equipped with multiple analytics capabilities. These features enhance security by enabling intelligent event detection, such as motion detection and tampering alarms. This intelligent analytics functionality improves the relevance of recorded footage, making it easier to locate significant events during review.

The camera includes audio support, further enriching its functionality. The two-way audio capability allows users to communicate through the camera, adding an extra layer of interaction and security, especially beneficial in emergency situations.

In conclusion, the Axis Communications P3904-R is a well-engineered camera offering high-definition performance, rugged reliability, and advanced features that meet the challenges of mobile surveillance. Whether used in public transportation, emergency services, or any demanding environment, it delivers exceptional video quality and operational efficiency. Its combination of durable design, sophisticated technology, and user-friendly features makes it a top choice for users seeking a reliable mobile surveillance solution.
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