photomodeler: alternative program

[Alicetta88]

good summer to all.
are looking for a program that is similar in everything and for everything to photomodeler scanner. Can someone recommend me a program easily found on the net able to create a cloud of points from photographs?
I need an examination of representation techniques, I should compare the two programs and draw my considerations, then shape the clouds.
In practice I have to get 2 clouds of points from these 2 programs and analyze which is the most effective.
I wait for your advice, I can't find anything going

 

[Tristan]

Take a look at this
http://labs.autodesk.com/utilities/photo_scene_editor/

 

[Alicetta88]

ask and you will be given, wow!
Now I'm looking for the program and I try it, if anything, I'll make it back alive.
I accept other advice however, you never know.
thanks endless:finger:

 

[Alicetta88]

I downloaded the program, it is free also from the official website autodesk, and I looked for a little tutorial on yt.
Now the only "problem" could be the fact that photofly auto-generates the cloud from the total of photos you upload, while pm requires manual assignment, mark point, at least for much of the project, so the number of points is infinitesimal compared to the other.

I keep experimenting,
Hi.

 

[Tristan]

I downloaded the program, it is free also from the official website autodesk, and I looked for a little tutorial on yt.
Now the only "problem" could be the fact that photofly auto-generates the cloud from the total of photos you upload, while pm requires manual assignment, mark point, at least for much of the project, so the number of points is infinitesimal compared to the other.

I keep experimenting,
Hi.

Forgive me alice, but are you talking about pm or pm scanner? Anyway to help you in the search... did you try to search on google "dense surface modeling software"?

 

[Alicetta88]

you're right, the teacher though provided us as a 6 pm scanner program, but the material we're using it is photos, few and not even of good quality, so I'm handing over the points because of force majeure, automatically blowing the points.
the work however is coming well, it is a baroque portal.
Thanks again, you are very kind

 

[maxopus]

Hello Alice, I'm curious to know this program.
What is the precision of the program in drawing the clouds of points?
What are the criticalities and limits of the same?
Kit: a trial version is available

 

[Tristan]

Hello Alice, I'm curious to know this program.
What is the precision of the program in drawing the clouds of points?
What are the criticalities and limits of the same?

if you talk about pm scanner, accuracy depends on how you carry out photo sockets. well-made photos lead you to have sub-centimet accuracy, photos made with feet without cause knowledge can introduce errors abundantly greater than 10 cm. I did the thesis on pm; the results obtained were almost all below the cm, if compared to a set of measurements made with metric cord. limits? Well, it's not a laser scanner, but it costs a 40th of a ls.

 

[maxopus]

if you talk about pm scanner, accuracy depends on how you carry out photo sockets. well-made photos lead you to have sub-centimet accuracy, photos made with feet without cause knowledge can introduce errors abundantly greater than 10 cm. I did the thesis on pm; the results obtained were almost all below the cm, if compared to a set of measurements made with metric cord. limits? Well, it's not a laser scanner, but it costs a 40th of a ls.

In fact, considering costs, it is not bad.
We need more than just to consider how much work is needed to pull out the result.
I try and let you know.

 

[Alicetta88]

Hi.
there is the temporary version free online.
I am self-taught and I was imposed on the use of this program, so reading a little and looking at some tutorials I learned a bit, but I'm sure I'm missing so many of its applications.
for this I believe that tristan is more competent and exhaustive than me.
the goodness of the work consists of a few but decisive factors, such as photos made with medium-good camera (for particulates), made with fixed focal, without zoom or flash, made with the easel. Another basic factor for a good project is the initial phase of calibration of the program, the set, is the process of determining the characteristics of a camera, so that it can be used as a measuring device and allows to have correct values of focal length of the lens, distortion of the lens, scale of digitization, without this pm however recognizes the parameters of the camera from the exif file, but the cloud will not be precise. My work has an average error of 2 cm, but also having a basic relief, I fixed it in the modeling phase.

 

[marcof]

if you talk about pm scanner, accuracy depends on how you carry out photo sockets. well-made photos lead you to have sub-centimet accuracy, photos made with feet without cause knowledge can introduce errors abundantly greater than 10 cm.

I think you make some confusion between resolution, accuracy, etc.
this to say that ten error centers on one kilometre are better than a centrimeter on one meter and, on the other hand, a centimeter on one meter is a result obtained comfortably with the meter from tailor.
imho photomodeler can only be considered for the return of common points to multiple photographs, points that must be identified with criterion, making the calibration of the objective and choosing with criterion the various frames .
the creation of clouds of points from photographs for now seems to me a technique decidedly drawn to the hair.
I looked at the examples on the photomodeler websitehttp://www.photomodeler.com/products/scanner/art.htm#lionand there's the 3d return of a gun casing. the rendering of details is simply ridiculous and for the forensic purposes (as they would like to make believe) would be completely useless.

I also have the impression that the system heavily exploits the mapping texture to give the impression of having under hand a model3d much more detailed than the cloud of points. I would be curious to have the models of the lion statue or ceremonial mask. .
In short, I imho to work with dot cloud surfaces is a tool of the series "I would work but I can't"

 

[Tristan]

I think you make some confusion between resolution, accuracy, etc.
this to say that ten error centers on one kilometer are better than a centrimeter on one meter...

We're talking about architectural relief. . Don't worry about me, I don't make any confusion, I know what I'm talking about, and you?

imho photomodeler can only be considered for the return of common points to multiple photographs, points that must be identified with criterion, making the calibration of the objective and choosing with criterion the various frames .
the creation of clouds of points from photographs for now seems to me a technique decidedly drawn to the hair.

the same search algorithms, perhaps revised and optimized, also used for the creation of dsm are used for more than 20 years in the aerophotogrammetric field for the automatic and assisted creation of dtms, so there is nothing to pull for the hair...it is obvious that the dense surfaces do not have the claim to supplan the clouds of points from laser scanner

I looked at the examples on the photomodeler websitehttp://www.photomodeler.com/products/scanner/art.htm#lionand there's the 3d return of a gun casing. the rendering of details is simply ridiculous and for the forensic purposes (as they would like to make believe) would be completely useless. "

You mean forensic analysis?

I also have the impression that the system heavily exploits the mapping texture to give the impression of having under hand a model3d much more detailed than the cloud of points. I would be curious to have the models of the lion statue or ceremonial mask. .
In short, I imho to work with dot cloud surfaces is a tool of the series "I would work but I can't"

Fatty men!

 

[marcof]

We're talking about architectural relief. . Don't worry about me. I don't make any confusion.[QUO

boh, you wrote:"Well-made photos lead you to have sub-centimet precision, photos made with feet without knowing cause can introduce errors abundantly greater than 10 cm"if you do not indicate the size of the object detected to speak of a precision of 5 mm or 10 cm does not mean much that, indeed it does not say anything. also "architectural relief" is little indicative to understand the size of the object... Did you get a sub-centimet precision on a votive edict, one meter high or colosseum?

I looked at the examples on the photomodeler website
and there's the 3d return of a gun casing. the rendering of details is simply ridiculous and for the forensic purposes (as they would like to make believe) would be completely useless.

You mean forensic analysis?

a little less than enough, and yet enough to see that the mesh of that mesh is a bowl, http://www.photomodeler.com/products/scanner/forensics.htm#bulletthe imprint of the percussor on the snow is a semisphere and in the mesh appears as an informed crater, not to mention the bruise (always on the footprint of the percussor) visible in the photo at 7 o'clock. less bad that they have prudently removed from the screensot the rendering of the printed writings on the caseback. I add that, in that little of visible brass case, they notice in the nonexistent mesh of curvatures of the surface that is actually flat.
I repeat that photomodeler used in that way is, imho, a tool of the series "I would work but I can't"... so much to make a little marketting with customers and show him the model 3d that rotates on screen.[/QUOTE]

 

[Tristan]

boh, you wrote:
if you do not indicate the size of the object detected to speak of a precision of 5 mm or 10 cm does not mean much that, indeed it does not say anything. also "architectural relief" is little indicative to understand the size of the object... Did you get a sub-centimet precision on a votive edict, one meter high or colosseum?

a small capital (otherwise called edicola) and 4 churches of variegated size.

a little less than enough, and yet enough to see that the mesh of that mesh is a bowl, http://www.photomodeler.com/products/scanner/forensics.htm#bulletthe imprint of the percussor on the snow is a semisphere and in the mesh appears as an informed crater, not to mention the bruise (always on the footprint of the percussor) visible in the photo at 7 o'clock. less bad that they have prudently removed from the screensot the rendering of the printed writings on the caseback. I add that, in that little of visible brass case, they notice in the nonexistent mesh of curvatures of the surface that is actually flat.
I repeat that photomodeler used in that way is, imho, a tool of the series "I would work but I can't"... so much to make a little marketting with customers and show him the model 3d that rotates on screen.

"marketing"? What would it make publicity with an example that even a profane like you think of a bowl? is a boomerang in my opinion...or maybe you look too csi :biggrin:

 

[Tristan]

Moreover if you read well it is an analysis made by third parties and not by software developers!
this scanner project shows the dense 3d scan of the rim of a bullet using just the texture of the metal. this is a macro project (close-up done with a sony a200 and minolta 50mm macro lens). this demonstrates that scanner can work with very small objects (less than a cm across here). this project was completed by eugene liscio of ai2-3d forensics.so it is not as you say but it is a real case history! the real problem is that we are accustomed to the various csi and ris that almost never reflect reality!

 

[marcof]

if you do not indicate the size of the object detected to speak of a precision of 5 mm or 10 cm does not mean much that, indeed it does not say anything.

a small capital (otherwise called edicola) and 4 churches of variegated size.

We know as much as before.
continue not to give the only information you need to understand the resolution of photomodeler. If we have to use the phones to rip that data off, just say...
You must say that resolutions you get in a given field of work or, or, since it is at the end of images, from a percentage value reported to the number of pixels.

The mesh of that mesh is a bowl, http://www.photomodeler.com/products...ics.htm#bulletthe imprint of the percussor on the snow is a semisphere and in the mesh appears as an informed crater, not to mention the bruise (always on the footprint of the percussor) visible in the photo at 7 o'clock. less bad that they have prudently removed from the screensot the rendering of the printed writings on the caseback. I add that, in that little of visible brass case, they notice in the nonexistent mesh of curvatures of the surface that is actually flat.
I repeat that photomodeler used in that way is, imho, a tool of the series "I would work but I can't"... so much to make a little marketting with customers and show him the model 3d that rotates on screen.

"marketing"? What would it make publicity with an example that even a profane like you think of a bowl?

I said I mean forensic analysis (or better than forensic ballistics) a little less than enough, not that I am a profane. to know what you have to look at and measure to make comparison of the prints of extraction and percussion in the casings, that mesh for the purpose of defining the shape of that object is a bowl. because then mesh came so interested less than zero. It is not obligatory to try to get blood from a rape...
without knowing a ballistic and mesh tube, it would be enough to look at the photo of the mesh and compare the shape that your brain processes with that returned by photomodeler without getting enchanted by the images in false colors and pompose captions, which serve precisely to marketting[/QUOTE]

is a boomerang in my opinion...or maybe you look too csi :biggrin:

I don't know if it's a boomerang, but I certainly wouldn't beat away two thousand and spend euros to get that kind of results that require more than one avalanche of time, because made the photos you are not even at the beginning of the work.
how much to csi I had to googlare to know what you were talking about; I haven't looked at that shit since I was 8. What I know about ballistics and forensic ballistics I read it on three or four books to the one dedicated.

 

[incasinata]

the creation of clouds of points from photographs for now seems to me a technique decidedly drawn to the hair.
I looked at the examples on the photomodeler website
"

Why do you say that?
I take care of photogrammetry (and therefore also of generation of clouds of points) every day! and I assure you that at international level the clouds of points from photogrammetry are comparable in everything and for all those obtained from laser scanners!
photomodeler....it is only the beginning, used by the most....but you can get crazy clouds and geometries....in this case, really counts the operator who makes the photos, who chooses the homologue points....ecc etc etc.

 

[incasinata]

Take a look at this
http://labs.autodesk.com/utilities/photo_scene_editor/

tried....it is crazy the 3d model that generates, in a very short time!
the inconvenience: you have to load on their servers....and everything becomes them!

 

[Tristan]

We know as much as before.
continue not to give the only information you need to understand the resolution of photomodeler. If we have to use the phones to rip that data off, just say...
You must say that resolutions you get in a given field of work or, or, since it is at the end of images, from a percentage value reported to the number of pixels.

You ask me? I'm no one! read the documents made available on the site related to precision...in any way I very little interest your criticism; works in a field that I completely ignore and above all are not here to sell software. I know only that in the architectural/architectural field the money for this software is few and spent well, especially if compared with a laser scanner (which, little that costs, will take you away 40000€)

 

[Tristan]

tried....it is crazy the 3d model that generates, in a very short time!
the inconvenience: you have to load on their servers....and everything becomes them!

this is true, but at least for now it is completely free!