Takeover Device Approvals

 Its aim is to provide a standard for the interface between different IP-based physical security devices. In simple terms, ONVIF specifications provide a consistent way for devices from multiple manufacturers to work together, where previously they would not have been able to. These standardized ONVIF specifications are like a common language that all devices can use to communicate. 

Video security systems use Profiles D, G, M, S and T 

In terms of what makes a compatible ONVIF security camera, profiles G, S, and T all apply to IP cameras, whether that is a POE ONVIF camera or a WiFi enabled camera. 

Real Time Streaming Protocol (RTSP) is an application-level network communication system that transfers real-time data from multimedia to an endpoint device by communicating directly with the server streaming the data. 

Most cameras can have three simultaneous streams running.

Main Stream, Sub Stream, & Third Stream.

Substream is a secondary stream coming from the recorder or cameras. This is customizable but at most uses about 512Kbps and is standard definition quality. 

In digital photography, resolution is the level of detail contained in an image. More specifically, it refers to the number of pixels that exist within that image. The higher the resolution, and the richer the pixel count, the more detail and definition you will see. 

The resolution of a digital image is measured using its pixels; specifically in pixels per inch (PPI). For printing, picture resolution is measured by dots per inch (DPI), referring to the tiny droplets of ink that printers create.

The higher the image resolution, the more pixels are bunched together — which creates a smoother, more detailed image.

The phrase ‘high-resolution’ is often used synonymously with quality — as vivid, crisp images are what we typically associate with good photography. However, it’s important to remember that resolution is just one factor that can affect image quality.