How to reduce overlap both yaw and pitch

[yoshiharra]

How to reduce overlap both yaw and pitch

by yoshiharra » Mon Feb 11, 2013 3:23 am

Just wondering, how can I reduce overlap, as I am getting about 50% overlap both vertically & horizontally. It seem little too much overlap, and when shooting hundreds of picture, it is also waist of time.

I am using EOS T3i, 200mm, With Magic Lantern, Nokia N810. Shooting in daylight landscape.

Thanks

[Christian Stüben]

by Christian Stüben » Mon Feb 11, 2013 7:59 am

Just wondering, how can I reduce overlap, as I am getting about 50% overlap both vertically & horizontally. It seem little too much overlap, and when shooting hundreds of picture, it is also waist of time.

I am using EOS T3i, 200mm, With Magic Lantern, Nokia N810. Shooting in daylight landscape.

Thanks

What kind of pano head are you using? Manual or robotic?

If robotic, try http://www.wackel3d.de/shootpatterngenerator.aspx , you can enter the vertical and horizontal field of view directly, or the calculator can do it itself by focal length and sensor size.

Minimum overlap should not be set lower than 30%.

Keep in mind, that
1) every shooting pattern should be testet before real using, below 30% you can get gaps, due to that every pic will be rotated, moved, etc by stitching software.
2) the shootpattern generator is not for free. Using it you agree to donate to a public charity organisation of your choice.

greetings from germany
Chris

[fma38]

by fma38 » Mon Feb 11, 2013 8:37 am

You can adjust the overlap in Papywizard:

http://www.papywizard.org/wiki/UserGuideSvn#Mosaictab

[yoshiharra]

by yoshiharra » Mon Feb 11, 2013 1:17 pm

Thanks Frédéric, but I have set to 20% overlap, getting about 50%! Just wondering if there is anything else I can do to change overlap?!

@ Chris, I should have mentioned it, Merlin AZ GO To.

Dave

Last edited by yoshiharra on Mon Feb 11, 2013 1:23 pm, edited 1 time in total.

[fma38]

by fma38 » Mon Feb 11, 2013 2:32 pm

I think you have a wrong configuration, somewhere.

What camera/lens/focal are you using? Does the config match your hardware?

[klausesser]

by klausesser » Mon Feb 11, 2013 2:49 pm

I have set to 20% overlap, getting about 50%!

Hey Dave!

Where do you know that from?

best, Klaus

[yoshiharra]

by yoshiharra » Wed Feb 20, 2013 4:39 am

Hi Frédéric, Klaus

Sorry I was away.

Under Configuration > Mosaic



Using EOS T3i(600D), 100mm

Last edited by yoshiharra on Wed Feb 20, 2013 4:47 am, edited 1 time in total.

[fma38]

by fma38 » Wed Feb 20, 2013 7:23 am

Just set back the Optical multiplier to 1! You already took into account the sensor size with the Sensor coef param. The Optical multiplier param is to be use when you really have an optical multiplier (usually x1.4 or x2), also called a converter, I think.

[yoshiharra]

by yoshiharra » Wed Feb 20, 2013 1:18 pm

Thanks Frédéric

I will try that and report back

Dave

[yoshiharra]

by yoshiharra » Wed Feb 20, 2013 3:47 pm

Hi Frédéric

Your suggestion fixed the problem!!

Thank you!

[fma38]

by fma38 » Wed Feb 20, 2013 8:27 pm

Good!

[franzkekko]

Re: How to split yaw pitch overlap

by franzkekko » Thu Jun 26, 2014 1:42 pm

Hi gurus! I'm testing my panogear with Bluetooth module out of my window, before trying a bigger shoot.

I'm using papymerlin 2.1.21 and set up all parameters, done some tests but still fighting against a problem: overlapping is not equal to yaw and pitch
I'm using a T2i Canon with a Canon 100-400 f/4-5.6 L IS at 400mm (which are unfortunately 380mm effectively).
These are my settings:






But when I stich the photos with autopano, a row may be totally deleted!! Here I prepared a screenshot to explain that:



As you can see, setting a 16% overlap, horizontally overlapping is good, enough to get precision to 2.3RMS (img number 14 15 16).
But vertically, IS TOOOOO MUCH!! Img 4 and 20 overlap vertically as 14 15 16, but papywizard decides to shot a useless row

Why do yaw and pitch overlapping can't be splitted?
In gigapixel panoramas becomes shots and shots (and time) trashed

I can't use online generator (I prefer do not) because I don't know how wide will be my yaw and how high my pitch

Suggetions?

Thank in advance!!

Attachments

Last edited by franzkekko on Thu Jun 26, 2014 2:01 pm, edited 1 time in total.

[mediavets]

Re: How to split yaw pitch overlap

by mediavets » Thu Jun 26, 2014 1:51 pm

Hi gurus! I'm testing my panogear with Bluetooth module out of my window, before trying a bigger shoot.

I'm using papymerlin 2.1.21 and set up all parameters, done some tests but still fighting against a problem: overlapping is not equal to yaw and pitch
I'm using a T2i Canon with a Canon 100-400 f/4-5.6 L IS at 400mm (which are unfortunately 380mm effectively).
These are my settings:






But when I stich the photos with autopano, a row may be totally deleted!! Here I prepared a screenshot to explain that:



As you can see, setting a 16% overlap, horizontally overlapping is good, enough to get precision to 2.3RMS (img number 14 15 16).
But vertically, IS TOOOOO MUCH!! Img 4 and 20 overlap vertically as 14 15 16, but papywizard decides to shot a useless row

Why do yaw and pitch overlapping can't be splitted?
In gigapixel panoramas becomes shots and shots (and time) trashed

I can't use online generator (I prefer do not) because I don't know how wide will be my yaw and how high my pitch

Suggetions?

Thank in advance!!

Where are the screenshots of settings?

16% is not normally sufficient overlap - the conventional recommendation is 25%.

Are you recording an XML data file of shooting locations and using the with the Papywizard Import Wiozard in APP/APG?

Which version of APP/APG are you using?

What hardware platform and OS are you using to run Papywizard?

[franzkekko]

Re: How to reduce overlap both yaw and pitch

by franzkekko » Thu Jun 26, 2014 2:06 pm

Hi thanks for relpy.
25% may be suggested, but I think is for moving objects. As you can see in my screenshot, 25% would be too much, 16% created a useless row! O.o
I imported XML with autopano plugin, Autopano Giga 3.5
My machine is a Windows 7 x64, 8GB RAM, 120GB SSD, Q9850 3.0GHz

[mediavets]

Re: How to reduce overlap both yaw and pitch

by mediavets » Thu Jun 26, 2014 5:17 pm

Hi thanks for relpy.
25% may be suggested, but I think is for moving objects. As you can see in my screenshot, 25% would be too much, 16% created a useless row! O.o
I imported XML with autopano plugin, Autopano Giga 3.5
My machine is a Windows 7 x64, 8GB RAM, 120GB SSD, Q9850 3.0GHz

Can you post the XML file here.

Perhaps there's something wrong with it?

How did you define the scope of the pano - by setting opposite corners?

Are you using autoexposure?

Are you sure your zoom was set at 400mm?

[franzkekko]

Re: How to reduce overlap both yaw and pitch

by franzkekko » Thu Jun 26, 2014 6:26 pm

My zoom is set to 400mm on the lens, but on exif they are 380. No problem here.

XML is attached into the zipped file. It's not wrong, my head followed the path written in post generated XML.

I used papywizard to set the two opposite corners...

Attachments

papywizard_2014-06-26_12h16m37s_mosaic.zip

(964 Bytes) Downloaded 146 times

[franzkekko]

Re: How to reduce overlap both yaw and pitch

by franzkekko » Thu Jun 26, 2014 6:30 pm

may be my area was too small for testing? However is strange that it creates a useless row... isn't it?

[mediavets]

Re: How to reduce overlap both yaw and pitch

by mediavets » Thu Jun 26, 2014 6:43 pm

may be my area was too small for testing? However is strange that it creates a useless row... isn't it?

Yes, it looks as if the FOV of each image is far greater than expected for the focal length and configured overlap desired.

The other possibility could be that the clutch mechanism on the pitch axis is slipping?

[mediavets]

Re: How to reduce overlap both yaw and pitch

by mediavets » Thu Jun 26, 2014 7:01 pm

may be my area was too small for testing? However is strange that it creates a useless row... isn't it?

I ran a simulated shoot of 8 columns and 3 rows using same version of PW and your settings and I find that the increments in pitch between rows in my XML file are 2.7 degrees.

In your XML file they are 1.5 and 1.4 degrees.

That would explain the excessive overlapping you see.

The question is how has this happened in your case?

...............

May I suggest and experiment?

Perform a simulated shoot of 8.3 matrix with same settings and same order of shooting as your real shoot; without connection to pano head of course and plugins set to Simulation.

Then try using the XML file produced with your image set.

[franzkekko]

Re: How to reduce overlap both yaw and pitch

by franzkekko » Thu Jun 26, 2014 8:55 pm

Now it gave me 2.7 degrees both in simutation and reality O.o
I'll pay attention to see/prevent if it will happens again.
Thanks for your support