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Wednesday, July 29th 2015, 1:16am

Measuring real-life distance (using two separate panoramas perhaps)?

Hi!

So recently I've been given the task to be able to make measurements of objects displayed in the panoramas. I've found this old topic, needless to say that this subject isn't an easy one. I now understand, that just by using a single image it's impossible to do. However, we're open to any suggestions and solutions? Have any of you ever did something like this in practice? I've looked up a lot of material about this online, but it's all quite confusing at the moment. Perhaps any ideas on how to proceed if say we had two shots of the same location? Btw, it doesn't have to be an automatic process, manual input (like selecting the corresponding points on the two images) is fine as long as we get a good result. We also obviously have access to camera parameters, such as focal length, sensor size, height of the tripod etc, whatever is needed.

Any help is greatly appreciated! Thanks!

This post has been edited 1 times, last edit by "justil" (Jul 29th 2015, 1:42am)


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2

Wednesday, July 29th 2015, 5:48am

You need to measure distance with parallax and know the distance between both view points.
Google "measure distance with parallax".
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Taurus

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3

Wednesday, July 29th 2015, 11:08am

Hi,

I have this problem solved - demo
to activate measurement mode press button in the lower left corner
to set the start and end points - click on the panorama
distance shown in the lower left corner

this tour is demo version, under construction now

best regards
Serge
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in order to comply the word with the affairs, you need to keep quiet and do nothing!

Virtual tour Gomel
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Windows 10x64 & krpano 1.19pr16

4

Wednesday, July 29th 2015, 12:56pm

Thanks for your help, both of you.

Sg, I will google that a bit later, as I'm not at my workstation right now.

Taurus, as for your solution, this looks quite interesting. Care to share how it works?

Taurus

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5

Wednesday, July 29th 2015, 1:15pm

Point panorama has certain geographic coordinates and height above the ground
working principle is based on determining the coordinate points on the ground surface
measurements are possible only in the plane of the earth surface, and only if it is horizontal
accuracy depends on the correct definition of the height of the survey point, a virtual tour have the integrated adjustment mechanism
you can compare the results of measurements on the panorama and Google maps, you can measure the dimensions of the car - the error is small
--
in order to comply the word with the affairs, you need to keep quiet and do nothing!

Virtual tour Gomel
Virtual tour
Virtual tour
Elbrus
...

Windows 10x64 & krpano 1.19pr16

6

Wednesday, July 29th 2015, 2:49pm

I see. Well, thanks for the explanation. Sadly, this probably won't work for us, since we need to make this work inside of houses and flats, with no geographical data available, and surfaces often not flat. Thanks anyway. I will look into this parallax thing later. Cheers!

7

Thursday, April 6th 2017, 10:18am

Measuring real-life distance (using two separate panoramas perhaps)

Hi
Taurus
Is there a better case to calculate the distance between two points? Calculate the distance between any two points in space.

thankyou

[list][*][/list]

Taurus

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8

Thursday, April 6th 2017, 11:05am

Hi, zyz
I do not know another method for spherical panoramas
What you see in my example works is assuming that the surface of the earth's surface is flat, without gradients

best regards
--
in order to comply the word with the affairs, you need to keep quiet and do nothing!

Virtual tour Gomel
Virtual tour
Virtual tour
Elbrus
...

Windows 10x64 & krpano 1.19pr16

9

Thursday, April 6th 2017, 11:49am

Hi, zyz
I do not know another method for spherical panoramas
What you see in my example works is assuming that the surface of the earth's surface is flat, without gradients

best regards
Hi ,Taurus
Thank you for your reply, I have seen your demo, I would like to measure the distance between any hotspots inside pano, for example, can measure the height of the object, width, etc.
Thankyou!
Hi, zyz
I do not know another method for spherical panoramas
What you see in my example works is assuming that the surface of the earth's surface is flat, without gradients

best regards

Tuur

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10

Thursday, April 6th 2017, 1:20pm

Hi,

I have this working for some time now. Quite accurate actually.. I have a video i could show you. When interested, send me an email.
We want to add some extra functionality, but i hope to show something soon.

Tuur *thumbsup*
http://www.virtualtuur.com
Skype:studiotuur

11

Friday, April 7th 2017, 3:32am

Hi,

I have this working for some time now. Quite accurate actually.. I have a video i could show you. When interested, send me an email.
We want to add some extra functionality, but i hope to show something soon.

Tuur *thumbsup*
Hi

I applied for you as a friend on skype, you did not reply to me.
thankyou!

Tuur

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Posts: 3,124

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12

Friday, April 7th 2017, 8:46am

Mmm.. are you sure you had the right account?
Tuur *thumbsup*
http://www.virtualtuur.com
Skype:studiotuur

Taurus

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13

Saturday, April 8th 2017, 2:46pm

...hank you for your reply, I have seen your demo, I would like to measure the distance between any hotspots inside pano, for example, can measure the height of the object, width, etc.
Yes, the height can also be measured, but I do not have such an example for demonstration
--
in order to comply the word with the affairs, you need to keep quiet and do nothing!

Virtual tour Gomel
Virtual tour
Virtual tour
Elbrus
...

Windows 10x64 & krpano 1.19pr16

14

Saturday, April 8th 2017, 7:19pm

I am interested in this functionality. I am not advance in coding so I have no clue what to do.
Will anyone release a plugin for this soon?

Thank you

15

Friday, April 28th 2017, 7:40am

Measuring between two points in pano

Hi Taurus...
I am also interested in this functionality. I am not at all good in coding. Can you help me in this regard....

Trinath