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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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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Image Analyst
Image Analyst el 11 de Mzo. de 2016
If you have the Computer Vision System Toolbox, see this link on camera calibration:
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marwan hasan
marwan hasan el 11 de Mzo. de 2016
i want to do my processes on the image itself that i picked it up through the camera and calculate the distance by the aid of the image .

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Dima Lisin
Dima Lisin el 14 de Mzo. de 2016
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.


Más información sobre MATLAB Support Package for USB Webcams en Help Center y File Exchange.


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