What is essential for achieving proper pixel density in a surveillance system?

Achieving proper pixel density is critical in a surveillance system because it determines the clarity and detail captured in the images. The relationship between target distance and focal length plays a crucial role in this. To have sufficient pixel density, you need to ensure that the camera is positioned correctly for the area it needs to monitor.

By correctly calculating the target distance and adjusting the focal length of the camera lens appropriately, you can ensure that the objects or individuals of interest are captured with enough pixels to provide a clear and identifiable image. Higher pixel density means that more detail is captured, making it easier to recognize faces or other important features in the footage.

While other factors such as storage capacity, camera angle, and video format do contribute to the overall effectiveness of a surveillance system, they do not directly influence the pixel density in the same way that calculating target distance and focal length does. For example, high-capacity storage is essential for recording high-resolution footage but does not affect the detail captured in an individual frame. Similarly, adjusting the camera angle can improve coverage of an area without necessarily impacting pixel density directly, unless it results in a change in distance to the subject being monitored. Choosing the right video format might affect compatibility or compression but does not directly modify how pixel density