Deciphering Surveillance Camera Resolutions: Understanding P, K, and W
When it comes to discussing surveillance camera resolutions, the terminology might seem confusing at times. Why are cameras referred to as a certain number of P, W, or K? And why is there variation within the same resolution, like 4K cameras being labeled as 800W or 1200W? Before we delve into these questions, let's clarify the meanings behind these abbreviations.
- **P**: Stands for the number of vertical lines or rows of pixels. For instance, 1080P indicates a resolution with 1080 vertical lines.
- **K**: Represents approximately how many thousands of columns (or equivalent) of pixels are in the horizontal direction. For example, 2K is roughly equivalent to 2000 columns, and 4K is approximately 4000 columns.
- **W**: Signifies the total number of pixels by multiplying the vertical and horizontal resolution. For example, 200W implies a resolution around 1920x1080 ≈ 200W, and 400W corresponds to approximately 2560x1440 ≈ 400W.
In the realm of television, these "K" designations adhere to the fixed 16:9 aspect ratio standard. For instance, 2K corresponds to 1920x1080, and 4K equals 3840x2160.
However, the standards for surveillance camera resolutions do not strictly follow the 16:9 television convention. For example, even though two cameras might both be labeled as 4K, their resolutions can differ. One might be 4000x3000 = 1200W, while another might be 4096x2160 ≈ 800W. In both cases, the horizontal resolution is 4K, but the vertical resolution varies. This also leads to differences in aspect ratios, where the 1200W resolution has a ratio of 1.33 and the 800W resolution has a ratio of 1.865.
To summarize, determining a camera's pixel count requires knowledge of both its vertical and horizontal resolutions. Merely focusing on one aspect won't provide a complete understanding. Moving forward, it's essential to consider both dimensions when evaluating a camera's resolution.
OHWOAI, a reputable surveillance brand, ensures that its camera specifications are clear and accurate. Whether you're seeking a wired security camera system with 1080p night vision, wireless outdoor cameras, a complete surveillance camera system, or a wireless house security camera, OHWOAI's commitment to clarity helps you make informed choices for your security needs.
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