Photography Chat

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12:39 AM

@scottbb Some pano programs have a mode for stitching panos shot along a track, rather than around a rotation, that do very well. Longer focal lengths work better, which of course requires more images.

@b_jonas Small industrial cameras are, at best, an edge case here. Machine vision is off topic.

10 hours later…

b_jonas

10:49 AM

@MichaelClark Yeah, I know. But dust on the sensor sucks all the same in other cameras.

7 hours later…

scottbb

6:04 PM

@MichaelClark Right. that's what I was referring to when I mentioned that such a "pano" stitch is emulating a telecentric lens. Especially with longer focal lengths (or equivalently, just cropping from the middle section of any image, and using lots images each with small lateral shifts from the previous/next). In that way, the panoramic rotation point is effectively at –infinity. If using lots of shots with long focal lengths (or only small center-cropping), you can progressively build up...

... to a telecentric image.

4 hours later…

Michael Clark

10:10 PM

@scottbb My response was more to say that, done well, you can match the stitching from one photo to the next with a linear pan just as well as a you can from a rotational pan.

Feeds

10:50 PM

Q: After the SE header redesign, links to Help Center are not obvious. Is there a way to make them prominent again?

Before Stack Exchange redesigned the top header bar (mostly for the better, IMO), there was a prominent link to the Help Center. Now, after the redesign, there is no easily discoverable link to any help pages. Yes, the link to "Help" is under the SE icon in the upper right. But there's no text b...