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Author Topic: Face-scan, all if fine except the hair  (Read 764 times)

cosinus-7

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Face-scan, all if fine except the hair
« on: October 29, 2018, 02:40:45 PM »
Hi all
First thanks for a very good software, as far as I can see. I am in the last 7 days  :( for testing, but I am quite sure, I will buy this nice soft.  :D

I have troubles to create a proper face-modell. Yes, I have read a lot and have seen a lot videos, but I am not successful.
Means, the face and eares and eyes and so on are great.

But whatever I do, the back and the hair, there is always a hole.

Has anybody an idea, what I do wrong? Would be very nice, any ideas or tips are welcome.

That you see it better, I attach 3 files, I am sure, you see, what I mean.

Thanks in advance.

cosinus-7

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Re: Face-scan, all if fine except the hair
« Reply #1 on: October 30, 2018, 10:28:18 PM »
Hm, no answer.
Maybe I did write here something wrong, sorry then.

5 days left for the trial AgiSoft.

I hope still on at least one answer.  :D

Alexey Pasumansky

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Re: Face-scan, all if fine except the hair
« Reply #2 on: October 31, 2018, 12:15:12 PM »
Hello cosinus-7,

According to the top screenshot from the Photo view mode there are problems with the sufficient number of valid matching points for the camera locations taken the pictures from above.

I think, you might need to increase the number of pictures and overlap for the top part of the head. Also check the images and the camera settings, that ISO is low and the area of interest is not out of focus or blurred.
Also you can increase the effective resolution of the images, when taking photos of the head in portrait camera orientation.
Best regards,
Alexey Pasumansky,
AgiSoft LLC

cosinus-7

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Re: Face-scan, all if fine except the hair
« Reply #3 on: October 31, 2018, 02:53:09 PM »
Hi Alexey

That is very nice of you to answer! Thanks a lot!!  :D

So it seems for me, that it should be possible to create such a head WITH hair.
And with your tips I have new hope, that I can get this.

I am a professional photographer, hence resolution, ISO and focus should not be a problem.  ;) 8)

Therefore I have to be more exactly with overlap and take more pictures from the top.
BTW, all other things (eyes, forehead and so on are very good, from my point of view, although the model had to sit stil for around 90 secondes.

Thanks again, hopefully the model has time again for a shooting, before my trial is finnished.
Again, a really good software, congratulation.

Alexey Pasumansky

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Re: Face-scan, all if fine except the hair
« Reply #4 on: October 31, 2018, 06:19:44 PM »
Hello cosinus-7,

You can also check the following video-tutorial related to the head scanning with the single camera, as it contain quite a lot of useful tips:
https://vimeo.com/188877674


Also I've made a quick search on Sketchfab for head scanning examples that have hair:
https://sketchfab.com/models/c6d4593e805e4aaf8d45cf118420b266
https://sketchfab.com/models/a4755a44483949d3b11662dbf867cc53
https://sketchfab.com/models/ec44fc1ed8d84a529b7ade1263d7b1f1
Best regards,
Alexey Pasumansky,
AgiSoft LLC

cosinus-7

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Re: Face-scan, all if fine except the hair
« Reply #5 on: November 01, 2018, 11:16:26 AM »
Alexey
Thanks a lot!
You have even searched, wow.
I will look at them all.
Really appreciated, your help, THANKS!  :D

cosinus-7

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Re: Face-scan, all if fine except the hair
« Reply #6 on: November 01, 2018, 07:50:12 PM »
Hello cosinus-7,

You can also check the following video-tutorial related to the head scanning with the single camera, as it contain quite a lot of useful tips:
https://vimeo.com/188877674


Also I've made a quick search on Sketchfab for head scanning examples that have hair:
https://sketchfab.com/models/c6d4593e805e4aaf8d45cf118420b266
https://sketchfab.com/models/a4755a44483949d3b11662dbf867cc53
https://sketchfab.com/models/ec44fc1ed8d84a529b7ade1263d7b1f1

Alexey,
The vimeo-video is really very interesting, though for a non-native-english-man like me not that easy to understand. But very good.

Only a sidemark, from your 3 sketchfab-examples (thanks!) has only 1 full hair, the other two seemed to have also problems, the last looks a bit like mine.

I wonder, if I should give a bit "streak light" in the hair, so that AgiSoft has better to find points.
But I will look further.
Thanks again.