How can I calculate the actual distance in real world of an object from its picture that picked up by a camera?

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marwan hasan
marwan hasan 2016-3-11
回答： Dima Lisin 2016-3-14
i want to calculate or know the distance in the real world between an object and the camera during taking a photo for this object ....what the function or code that can i use to calculate this distance from its picture that picked up by the camera?

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回答（2 个）

Image Analyst
Image Analyst 2016-3-11
If you have the Computer Vision System Toolbox, see this link on camera calibration:
http://www.mathworks.com/products/computer-vision/features.html#camera-calibration
Dima Lisin
Dima Lisin 2016-3-14
With one camera, you may be able to compute the distance if you have a calibrated camera, and you know the actual size of the object. If you do not know the size of the object, then you would need a calibrated stereo camera, or an RGB-D camera.

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