How can I find an object distance in an image??
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Hi,To find the an object distance (working distance) in an image, I can do this
object distance = focal length*((1/magnification) + 1)
thanks
1 Comment
Jan
on 8 Dec 2012
Currently I do not see the relation between your question and Matlab. Because this is a Matlab forum, your problem might be off-topic.
Answers (1)
Jürgen
on 8 Dec 2012
Edited: Jürgen
on 8 Dec 2012
hi, first Your question is not clear? second, on a single image you can not extract object distance,=> you need stereovision, or other techniques like depth from focus or special cameras( Time Of Flight) I suppose you refer to the thin lens equation but this is only for an object in focus
regards, J
3 Comments
Jürgen
on 8 Dec 2012
Hi, to be honnest I do not have the time to read the link but for me: image distance is the distance between the plane where the image is formed and the lens center, and object distance is the distance between the object in focus and the lens center , camera distance is not so clear define for me , I do not use it actually, if you want to do measurements on images start by looking at the pinhole camera model , there you have the image plane at focal length of the lens center
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