AXIS Q6045-C PTZ Dome Network Camera

Video

H.264

H.264, also known as MPEG-4 Part 10/AVC, is a video compression standard that provides high quality video streams at low bit rates. An H.264 video stream consists of different types of frames such as I-frames and P-frames. An I-frame is a complete image whereas P-frames only contain the differences from previous frames.

The H.264 stream settings can be configured from the Video > Video Stream page. Select the H.264 tab. The settings defined in this page will apply to all H.264 streams that do not use a stream profile.

The GOV length is the number of frames between two consecutive I-frames. Increasing the GOV length may save considerably on bandwidth requirements in some cases, but may also have an adverse affect on image quality.

The Axis product supports the following H.264 profiles:

•Baseline. The Baseline profile is recommended for clients that don’t support CABAC entropy coding.

•Main. The Main profile provides higher compression with maintained video quality compared to the Baseline profile but requires more processing power to decode.

The bit rate can be set as Variable bit rate (VBR) or Constant bit rate (CBR). VBR adjusts the bit rate according to the image complexity, using up more bandwidth for increased activity in the image, and less for lower image activity. When the activity in the scene increases, the bit rate would usually increase as well. If there is a surplus in bandwidth, this may not be an issue and selecting Variable bit rate (VBR) will be sufficient. But if bandwidth is limited, it is recommended to control the bit rate by selecting Constant bit rate (CBR). When the activity in the scene increases, VBR adjusts the bit rate according to the complexity, using up more bandwidth for increased activity in the scene, and less for lower scene activity. CBR allows you to set a target bit rate that limits the bandwidth consumption.

The CBR target bit rate works like the ceiling of a tent. It limits the bit rate, while maintaining some flexibility . The bit rate may bounce up and down within the set target but when it nears the set target value, the limitation kicks in. However, because CBR will always prioritize a continuous video stream, it allows temporary overshoots from the target bit rate. Because setting a target value prevents the bit rate from increasing, frame rate and image quality are affected negatively. To partly compensate for this, select which variable shall be prioritized, frame rate or image quality. Not setting a priority means that frame rate and image quality are equally affected.

The current bit rate can be set to appear as text overlay. Under Overlay Settings, select Include text and enter the modifier #b in the field.

To apply the settings, click Save.

MJPEG

Sometimes the image size is large due to low light or complex scenery. Adjusting the maximum frame size helps to control the bandwidth and storage used by the Motion JPEG video stream in these situations. Setting the frame size to the Default setting provides consistently good image quality at the expense of increased bandwidth and storage usage in low light. Limiting the frame size optimizes bandwidth and storage usage, but may give poor image quality. To prevent increased bandwidth and storage usage, the maximum frame size should be set to an optimal value.

Stream Profiles

A stream profile is a set of predefined stream settings including resolution, compression, frame rate and overlay settings. Stream profiles can be used:

•When setting up recording using action rules. See Events on page 37.

•When setting up continuous recording. See Continuous Recording on page 42.

•In the Live View page – select the stream profile from the Stream profile drop-down list.

For quick setup, use one of the predefined stream profiles. Each predefined profile has a descriptive name, indicating its purpose. If required, the predefined stream profiles can be modified and new customized stream profiles can be created.

To create a new profile or modify an existing profile, go to Setup > Video > Stream Profiles.

To select a default stream profile for the Live View page, go to Setup > Live View Config .

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Axis Communications Q6045-C PTZ user manual Stream Profiles, 264
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Q6045-C PTZ specifications

The Axis Communications Q6045-C PTZ camera is a state-of-the-art surveillance solution designed for demanding environments. Known for its exceptional performance, this camera combines advanced technology with robust features, making it an ideal choice for various applications, including city surveillance, traffic monitoring, and large infrastructure protection.

One of the key features of the Q6045-C is its high-quality imaging capabilities. Equipped with a 2 MP sensor, it offers stunning video resolution at 1080p, delivering sharp and clear images even in challenging lighting conditions. This camera has a wide dynamic range (WDR) technology, ensuring that both bright and dark areas are captured with precision, making it highly effective in situations with varying light conditions.

The Q6045-C also boasts advanced pan-tilt-zoom (PTZ) functionality, allowing operators to cover large areas with great detail. It offers a 360-degree continuous pan and a tilt range of up to 20 degrees, coupled with a powerful 30x optical zoom. This flexibility enables security personnel to monitor specific areas and zoom in on points of interest without losing image quality, ensuring that no detail goes unnoticed.

Another notable technological advancement of this camera is its built-in Axis Zipstream technology. This feature optimizes bandwidth and storage efficiency by dynamically adjusting the compression of video streams while maintaining essential details. This allows users to save on storage costs and simplifies bandwidth management, making the Q6045-C an economical choice for long-term surveillance.

The Q6045-C is built to withstand harsh environments, featuring an IP66 rating for weather resistance and a robust design that protects against dust and water ingress. This durability makes it suitable for outdoor use in various climates.

Additionally, the camera is equipped with advanced cybersecurity features to safeguard against unauthorized access and tampering. With Axis Communications’ commitment to security, users can rest assured that their surveillance data remains protected.

In summary, the Axis Communications Q6045-C PTZ camera is a versatile and robust surveillance solution featuring high-resolution imaging, advanced PTZ capabilities, and enhanced durability. Its smart technologies, including Zipstream and cybersecurity measures, make it a reliable choice for ensuring safety and security in a wide range of applications.
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