Messages

46

Feature Requests / Re: Keyboard Shortcuts

« on: November 17, 2012, 02:11:24 PM »

+1
Userdefined shortcuts to any command would be fine.

@navalguijo
There are shortcuts for that (but you can?t define the shortcuts by yourself):
Ctrl + Shift + A = Add selection
Ctrl + Shift + S = Substract selection
Ctrl + Shift + I = Invert Selection
V = Navigation
M = Rectangle Selection
L = Intelligent Scissors
P = Intelligent Paint
W = Magic Wand

47

Feature Requests / Re: Idea of Quality Improvement

« on: September 19, 2012, 11:22:03 AM »

Hello!

A small improvement for this and all the other methods after building model geometry (like decimation, gradual selection+delete etc.) could be done by adding one option to the general-workflow within all these methods (instead of dividing them it into different menu-options):
Clean-Up geometry.

Greetings
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48

Feature Requests / Idea of Quality Improvement

« on: September 12, 2012, 03:32:04 PM »

Hello!

Just read that thread:
http://www.agisoft.ru/forum/index.php?topic=677.0

The quality of the smooth reconstruction method could be improved if PhotoScan would only place polygons near to a point of the pointcloud. The distance should be defined the user.

If PhotoScan was able to calculate the density of every point inside the pointcloud there could be a second user defined variable to produce only polygons near to specific density of the pointcloud.

For that method it would be nice that the user could place or duplicate&move extra-points just to be sure that there will be no holes. As an automatic method it should be easy to convert fast generated Lowest/Low/Mid-Poly-Meshes into ("extra-") point-clouds.

Positive: Better geometry-quality - few less polys but much more space on the UV (increased texture-quality).
Negative: That method could create some holes (no watertight mesh).

I hope you like this idea of quality-improvement.
It?s a little bit like masking in the third dimension.
Hope to get feedback from Alexey or other PhotoScan-users.

Kind regards
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49

Feature Requests / Handling Subdivided Objects

« on: September 12, 2012, 02:46:44 PM »

Hello!

It would be very nice if PhotoScan could handle objects with subdivision (and a displacement-map on it):

1. Generate a Hi-Poly-Mesh inside PhotoScan
2. Retopologize that and create an UV with a software of your choice and reproject the details out to a displacement-map. (If PhotoScan could produce displacement-maps by itself out of one Hi-Poly-Mesh and one Low-Poly-Mesh it would be even better!)
3. Import that mesh into PhotoScan
4. Build texture on the displaced Retopo

That would speed up the overall-workflow, the texture-quality will increase, the output-datavolume will decrease and it would be helpful for PsPro-users (for animation). Maybe it?s even a good way for generating larger arealmaps (I think it?s equal to DEM-maps).

Kind regards
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50

Feature Requests / Re: FBX export

« on: September 12, 2012, 02:16:23 PM »

+++++!
Hope it will work with Modo!
Thanks Alexey!

51

General / Re: Drones

« on: May 11, 2012, 01:00:21 PM »

@Olihar:

Sorry for my misunderstanding.
Just thought to post this link related to an other thread ( http://www.agisoft.ru/forum/index.php?topic=457.0 ) . I?d found their website yesterday as I was searching for a gimbal. Just opened up this thread because it could be very interesting for aerial photography. Their products seems to be good and the prices are incredible in comparison to droidworx etc. . I will get their Octocopter (instead of an DJI Hexacopter) in a few weeks and will show some PhotoScan-results in this thread.

The website will be in english soon I think - for now just use google-translate. The company started their website at April 2012 and they will deliver throughout whole europe for sure. Before that they worked directly for security and military-services.

@Kjellis: Yes, I misunterstood...

Greetings
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52

General / Re: Drones

« on: May 11, 2012, 10:15:44 AM »

@Olihar:
Spam? That was my 16th post on this forum.
English isn?t my native language.
Don?t know whats your problem.
Make fun of me and be happy.

53

General / Drones

« on: May 10, 2012, 07:22:15 PM »

Hello!
Just found out that there good drones for roundabout 1000€ at http://www.smartdrones.de . Take a look at their store. All of the Drones are made out of Carbon and the big ones (Octacopter) could carry up to 8kg. There are also good gimbals available.
I think this could be interesting for someone professional...
Greetings
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54

Feature Requests / Re: FBX export

« on: May 07, 2012, 01:12:22 PM »

+1

55

General / Re: aerial photography?

« on: May 04, 2012, 11:52:09 AM »

Hello!

Sigma wrote that he wants to generate a model of a 1km*2km valley with allmost 5m precision.
I think that and even better solution (1m) could be done.

@Wishgranter:
Yes - professional Quadrocopters are at another pricerange (~10000).
If you once handle a RC-helicopter an RC-Quadrocopter isn?t a big challenge to fly with.
The battery-cost is low if you compare it to helium/baloongas used on balloon/blimbs.
Take a look at the DJI Hexacopter Flamewheel 550 on the net and videoportals.
I`ll use it mainly for shooting Videos - for sure testing it with PhotoScan.

@Oli63:
1. There are some solutions using GPS.
2. Point 1...
3. A remote-controlled Cam will work. In continuous fireing mode you could select the best shots.
4. The DJI Flamewheel 550 (Hexacopter) could take up to 1kg.
5. You?ve to do the same things even on the ground.
6. Yes.
7. I`ve heard that there could be much problems in germany (except bavaria).
8. Point 1...
9. - 30. ...
Experts/professionals with lots of experience in cartography and photogrammetry will do the job better for sure. This summer I?ll show my results on this forum and then everybody will see if I was going the wrong way!

@diegotorres:
Don?t know to who you?re talking to (Sigma or me?). Your joke is OK if it?s sick attaching a Remote-controlled DSLR (16Mp) via gimbal to a Hexacopter. Btw: I`ll use the results for artistic purposes and not for exact cartography with the precision of two inches in an area roundabout 1km*2km...

Greetings
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56

Feature Requests / Re: Automatic Masking.

« on: May 04, 2012, 10:03:51 AM »

Hello!

Now here are the four ideas of this thread:
1. Masking by greenscreen (black, white or colored background)
2. Masking by background (only for static cams)
3a. Masking by pointcloud & bounding-box
3b. ...with a convex-hull

Let me throw in one more idea:
Masking by Focus. Like allmost every cam got a algorythm for Auto-Focus the same algorythm could be used to seperate the areas with fine details and that blurry ones. Maybe only for generating a convex-hull around it.

Different automasking-options for different situations would be good.

Greetings
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57

General / Re: aerial photography?

« on: May 03, 2012, 05:19:17 PM »

Hello!
I just checked the prices for Quattro- and Hexacopters which are able to carry a 1kg-Cam and for my surprise the prices are between 500$-1000€. Just google for "Gaui copter" or "DJI copter". But depending on the land you?re living in there are a lot of laws and rules. F. E. n Austria it?s relative strictly forbidden to use an air-vehicle with a built-in cam. In my country (germany) you need a special insurance, for commercial use even some licences and so one...
Greetings
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58

General / Re: aerial photography?

« on: May 02, 2012, 04:27:26 PM »

Hello Sigma!

Use a good DSLR-cam instead of a 7mp-pocket-camera the results will be much better because of a bigger&better sensor. Take a look at this picture for all those different types of cam-sensors and you know what I mean: http://de.wikipedia.org/w/index.php?title=Datei:Sensorformate.svg&filetimestamp=20081203074952 . Just borrow one DLSR-cam from your friends or family and compare the results.

If you own a good HD-Cam: Just take a walk around an object and cut the recorded video into roundabout 100 (sequenced) pictures. It works - not really good but it works if you want to scan a high number of objects in short time. Take a look at another software (not released yet) which shows this technique: http://www.vi3dim.com/ . For sure PhotoScan will give you better results if you use 600 (!) HD-cam-pix.

Ask Alexey about your scale-question. Don?t know...

Greetings
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59

General / Re: aerial photography?

« on: May 01, 2012, 09:38:36 PM »

Hello Sigma!

If my client would spent me so much dollars (and time) for this project I would do this:

Buying a big quadrocopter (~10000$) for a high-quality remote-controlable-cam & gps-system (like Sony Alpha65 for ~1500$) for taking thousands of photos from different perspectives of each valley-wall and the valley itself (Btw for your try-outs: Cloudy diffuse sunlight at the middle of the day is the best and there shouldn?t be winds for natural photography). With a nice PC (~5000$) there will be good PhotoScan-results over night with more than ten millions of polygons. Which means for roundabout 5km? (2km? ground, 3km? hills and trees) more than two polygons per m?. Thats enough if you think about flat areas (with less polygons) and a higher resolution texture(s) on top of it. You could calculate even more polygons by changing the setting or by splitting the ground, hills and some interesting parts (like rocks) into "chunks". For more releastic results I would built up a low-resolution 3D-background around the valley.

Of course you?ve to retopologize the high-resolution-results for better use in other rendering-software. Afterwards you?ve big equipment for future projects. But it could be hard work.

2cm? ground-resolution means 12500MegaPixel-Texture, 12500 Million Polygons and even more?!

Greetings
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60

General / Re: aerial photography?

« on: May 01, 2012, 01:12:03 PM »

Hello sigma!

Maybe you even don?t need the Pro-version because of your wanted size.

1km*2km at 5m resolution will be a 200px*400px (=80000px) heightmap (really small). 1km*2km at 1m resolution should be possible (1000px*2000px = 2000000px) heightmap. And the object could have an 10000px*20000px texturemap which means one pixel for every 10cm?. This should be enough for your project I think. You could generate 3D-objects with 5000000 Polys and much more texture-size - it depends on your computer.

A 7MP-Cam could be enough for this if you shot 100 Photos or more. More Photos means more quality and more MegaPixels (without noise) means more accuracy. For heightmaps it?s good to use the same altitude and same angle looking to the ground. Just try-out PhotoScanStandard with your 7MP-Cam and photograph some old buildings or walls etc. - you will be fascinated by the precision.

A better Cam will give you better results. Take a look at the new SonyAlpha 57 (16MP) or SonyAlpha 65 (24MP with builtin-GPS for use in the PhotoScanPro).

Optical zoom gives you better results (less lens-distortion) if you don?t want to undistort photos for fast creating 3D-Models (maybe of some trees or stones in the valley) . But you?ve not to change the zooming until the session ends.

If I were you I would contact fpbv!

All the best.

Greetings
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