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Author Topic: tie points and key points  (Read 10841 times)

zagnimarco1

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tie points and key points
« on: March 27, 2019, 10:11:09 PM »
Some one can explain me  what is key points and tie points or give some  link ?
Thank you in advance

Mak11

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Re: tie points and key points
« Reply #1 on: March 27, 2019, 10:40:53 PM »

zagnimarco1

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Re: tie points and key points
« Reply #2 on: March 27, 2019, 11:50:17 PM »
Good, but the manual takes for granted i know what is a key point and tie point , and talks about masking tie points , key points, key points limits etc etc, but i don't know what rapresent  this terms for  the software, hope to explain correct with my basic english.

Dave Martin

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Re: tie points and key points
« Reply #3 on: March 28, 2019, 12:21:51 AM »
Zagnimarco1,

They're not PhotoScan/MetaShape software specific terms - they're relatively standard photogrammetry terms.

Very crudely:
   Key point = a distinct feature in one single image
   Tie point = where same feature has been recognised in multiple images

Dave

zagnimarco1

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Re: tie points and key points
« Reply #4 on: March 28, 2019, 10:14:06 PM »
Thanks everybody