Agisoft PhotoScan 1.0.0 pre-release

[Matt]

Hi Alexey,

Can you elaborate/describe on the settings/colours for the dense cloud classifications. I cant find any mention of it in the forum/instructions.
Many Thanks

[Alexey Pasumansky]

Hello andyroo,

To switch from Navigation mode to the last used selection tool in the Model view just press Space on keyboard.

[Alexey Pasumansky]

Hello Matt,

Automatic dense point cloud classification finds points from the two classes: Ground and Low Points (that are under the estimated ground level). Manual classification allows to assign classes to the selected points.
It's recommended to use default values in Classify Ground Points dialog, but they can be slightly varied depending on the project.

Generally the method is the following: at first in every cell the lowest point is selected (Cell Size should be adjusted so that there are guarantied ground points in each cell). Then these points for each cell are triangulated in grid that should not be laying above the ground. Then new points are added to this grid - each of the points being added should match the following criteria:
the distance between the point and the "ground surface" should not be bigger than Max.Distance parameter; the angles between the "ground" and the vectors connecting the point and vertices of the corresponding cells are not greater then Max.Angle parameter.

Later in the Build Mesh dialog you can choose classes that should be used for mesh generation.

[airmap3d]

Is it possible to install the beta separately and keep the  0.9.1 installation for comparison purposes?

Good question???  I would like to have both on my computer so that I can continue to practice with V1.0 while still processing commercial jobs with V0.9, rather than having to un-install/ re-install every time.

[admir]

Is it possible to install the beta separately and keep the  0.9.1 installation for comparison purposes?

Good question???  I would like to have both on my computer so that I can continue to practice with V1.0 while still processing commercial jobs with V0.9, rather than having to un-install/ re-install every time.

You can install 0.91, copy it to folder like PhotoScan_0.91, uninstall (it will remove it from Photoscan folder), install 1.0 (in Photoscan default folder). You end with 2 versions in 2 folders.

Admir

[chadfx]

Just a few quick things:

I would just like to say 'thank you' for the new hotkey to switch between perspective and orthographic views. It would be nice to have others to switch between some of the tools (rotate and scale region are two I can think of)

Oh, and the editable dense cloud before building geometry is awesome...it will be a big time saver.

Cheers, -C

[choppedxs]

Am playing with the Classify Ground points tool (which is fantastic addition as have been tearing my hear out trying to get LAStools to work). Anyway I ran with defaults and worked pretty well. Then I played with settings and buildings were then classed as brown colour (same as the ground - ie the whole point cloud was brown). Then when I changed the settings back to default and reran nothing changed (everything remained brown). Didn't seem to be able to undo the previous classification. Am I missing something?  Thanks

[tony88]

Hi does someone have samples of after classifying canopy that can be shown here in a jpg form?

[Alexey Pasumansky]

Hello choppedxs,

In the Classify Ground Points dialog you can select if classification is applied to any class or to non-classified point only (please check that you are using build 1742).

[Porly]

Hello friends,

is there a way to skip the dens cloud generation step? It would be interesting for someone who dont need to edit anything in the dense point cloud. For aerial projectas the dense pointcloud can consist of one billion points, so editing wouldnt be possibile any more due the amount of data. Generating dense point cloud is a additional step in version 1.0. that can take several hours. It is an amazing option/improvement and real useful for smaller projects, but for most of my projects I would like to skip this procedure.

I also tried to generate depth maps seperately for all photos and go directly to generating mesh step (as in version 0.9.1), but I couldnt find the "build depth" option for each image in "Photo pane".

Maybe I missed something??

Thanks a lot!

Best regards

Porly

[Alexey Pasumansky]

Hello Porly,

Actually, in previous versions dense point cloud was also generated from the depth maps, but this process was a sub-step of Build Geometry stage. So in 1.0.0 Build Dense cloud and Build Mesh will produce the result of Build Geometry stage in 0.9.1.

[Wishgranter]

all (as far i know) photogrammetric solution work with pointclouds and then the PC is converted to triangles-mesh. Then depend on how is the meshing algorithm implemented AND optimized for various tasks. For now is the POISSON mesh reconstruction used as one of the best pros/cons from various techniques.   

[chadfx]

Sort of a feature request, but since it's related to the dense point cloud editing I thought I'd post it here. Feel free to move this post if needed.

Would it be possible to enable the Invert, Grow and Shrink Selection functions to Dense Point Cloud editing? It would be very helpful when trying to clean up the dense point cloud before building the mesh. I know it's not really the same function as with connected pieces of built geometry, but I thought I might as well ask.

Thanks! -Chad

[bisenberger]

Haven't had much opportunity to play with the beta, but I see the view presets made it in. 
Really looking forward to some documentation on the new features!

[airmap3d]

Sort of a feature request, but since it's related to the dense point cloud editing I thought I'd post it here. Feel free to move this post if needed.

Would it be possible to enable the Invert, Grow and Shrink Selection functions to Dense Point Cloud editing? It would be very helpful when trying to clean up the dense point cloud before building the mesh. I know it's not really the same function as with connected pieces of built geometry, but I thought I might as well ask.

Thanks! -Chad

I second that.  Or even just a 'decimate dense point cloud' function of sorts?