Determining object distance using Microsoft Lifecam HD3000

Good day,

Our team is attempting to determine the distance to a detected object using OpenCV detection with the Microsoft Lifecam HD3000.

We have been trying to follow this guide, however, we are having great difficulty in finding the necessary information, namely:

  • Lens focal length
  • Sensor size

Any help would be greatly appreciated!
Jack

Without real camera specs, the easiest way to do this is to get the value (typically the Y coordinate assuming a fixed camera angle, or just the size of the object) at various distances and do a curve fit.

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