3DF Zephyr v. 1.030

[Andrea Alessi]

New version is out!

here's the full changelog:

+ Multiple GPU support
+ Multiple instances of Zephyr can now be opened at the same time
+ Improved Fast Match algorithm during Structure and Motion phase
+ Improved ANN routines (used in many parts)
+ Improved hole filling during orthophoto generation
+ Fixed a bug that caused the screen go black in rare cases after the reconstruction.
+ Added .3DK importing (3Dflow SDK format)
+ Qt 5 Libraries update
+ Visual studio 2013 compiler update
+ Recent list now contains also recent saved items
+ Many minor gui fixes
+ Fixed a display bug in recent saved items list
+ Fixed a bug during surface generation (minimum vertices generation ignored)
+ Fixed a memory leak during the multiview stereo phase occuring in some rare circumstances
+ Close range presets changed (improved accuracy)
+ Added sharp features preset for Aerial applications

[Andrea Alessi]

[kaarle_k]

Hi,

We need to scan a still 3D model from a moving actor. Like a person on a swing or knocked out boxer.
We would have as many syncked photo cameras available, would it be possible to use 3DF Zephyr for generating such a model?

Textures are not important.

with reagards

Kaarle

[Andrea Alessi]

Hello Kaarle,

yes it's possible, as long as the cameras are correctly synced!

If you already have some sample dataset i will gladly have a look at it for you

best regards,

Andrea

[Andrea Alessi]

Hello Kaarle,

yes it's possible, as long as the cameras are correctly synced!

If you already have some sample dataset i will gladly have a look at it for you

best regards,

Andrea

[clewis]

I use 3DFSamantha1.70 (x64) for 3D restruction, the output.m is created, but how can I see the dendrogram?
First I apologize for my poor knowledge of Matlab, this is my way:
Z=linkage(clusterinfo);
dendrogram(Z,0)
I have tried for several datasets, but there is a problem: the dendrogram has 1 less image than the data sets. For example, HerzjuseP25 have 25 images, and in the output.m file:
clusterinfo = [ 8, 9, 0.000165; 7, 8, 0.000198; 7, 20, 0.000160; 7, 19, 0.000138; 6, 7, 0.000138; 6, 18, 0.000126; 5, 6, 0.000152; 4, 5, 0.000158; 4, 17, 0.000141; 4, 16, 0.000161; 4, 21, 0.000160; 4, 10, 0.000153; 4, 22, 0.000148; 4, 11, 0.000175; 4, 23, 0.000173; 4, 12, 0.000178; 4, 24, 0.000210; 3, 4, 0.000218; 3, 13, 0.000221; 3, 25, 0.000228; 2, 3, 0.000239; 2, 15, 0.000212; 1, 2, 0.000270; 1, 14, 0.000436];
I run "Z=linkage(clusterinfo);" and " dendrogram(Z,0)", the dendrogram has 24 leaves, why? is there anything wrong? what is the right way?
Thanks and best regards!

[Roberto]

Hello,

the clusterinfo structure already contains the merge steps of the samantha linkage process (24 merge steps = 25 leaves). You don't need to run linkage on clusterinfo, just use dendrogram function directly with clusterinfo as parameter.

Best,
Roberto

[clewis]

Thanks Roberto, but if I use "dendrogram(clusterinfo,0)",the figure is very irregular,is there any method to make the figure looks more clearly, like the pattern of the paper "improving the efficiency of Hieranchical structure and motion"(figure 2)?
Best,
Lujun

[Roberto]

You can try to increase the LinkageMinSearchRange parameter from the settings.ini file. However be careful as high values may decrease the reconstruction quality itself and it's deprecated.

[Roberto]

Hello,

the clusterinfo structure already contains the merge steps of the samantha linkage process (24 merge steps = 25 leaves). You don't need to run linkage on clusterinfo, just use dendrogram function directly with clusterinfo as parameter.

Best,
Roberto

[clewis]

Thanks Roberto, but if I use "dendrogram(clusterinfo,0)",the figure is very irregular,is there any method to make the figure looks more clearly, like the pattern of the paper "improving the efficiency of Hieranchical structure and motion"(figure 2)?
Best,
Lujun

[Roberto]

You can try to increase the LinkageMinSearchRange parameter from the settings.ini file. However be careful as high values may decrease the reconstruction quality itself and it's deprecated.

[Andreas Schwarz]

I'm using 3D Lapyx to calibrate my camera. If i print the checkerboard the result is a rather big checkerboard with 4x6 fields scaled to an DIN-A4-page. Can I use a smaller checkerboard with different amount of fields for the calibration process or do i have to stick with the default one?

[ddd309]

I have the same problem. Can I use a different checkerboard with different dimensions?

[Roberto]

Hello,

lapyx can accept in input any kind of checkerboard as you can manually specify the number of rows and column. However, if you want to use a larger one you have to compose it and print it by your own instead of using the lapyx printing function. Please remember the internal square cannot have varying dimension. Alternatively you can also use the monitor to display the checkerboard.

[ddd309]

I have the same problem. Can I use a different checkerboard with different dimensions?

[Roberto]

Hello,

lapyx can accept in input any kind of checkerboard as you can manually specify the number of rows and column. However, if you want to use a larger one you have to compose it and print it by your own instead of using the lapyx printing function. Please remember the internal square cannot have varying dimension. Alternatively you can also use the monitor to display the checkerboard.

[3d print files]

Of course, it is possible to manually enter the values you want as a measure of your board. I love everything related to 3d design, it's something that I'm passionate about and I've been working on it for a long time.

[Roberto]

Of course, it is possible to manually enter the values you want as a measure of your board. I love everything related to 3d design, it's something that I'm passionate about and I've been working on it for a long time.

I'm fascinated by these new bots

[Nedo]

AI is getting better