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1
General / Multispectral Imagery Upload
« Last post by NMD on Today at 02:31:53 AM »
I'm uploading multispectral imagery from a MicaSense RedEdge into AgiSoft but I am not given the option to load as multispectral bands. There are five bands per capture as expected. I recently updated the firmware and imagery prior to the firmware update loads as expected but imagery capture after the update does not.  When I attempt to process the imagery as individual cameras, the orthomosaic created indicates two bands and appears solid blue when loaded into ArcMap. Any help with troubleshooting is appreciated!
2
Please ignore this for now, I believe I have implemented a similar method based on this formula: http://mathworld.wolfram.com/Point-LineDistance3-Dimensional.html, here is my code:

Code: [Select]
def _pick_point(points, cam_center, cam_direction):

    min_dist = float('inf')
    min_point = None

    x1 = cam_center
    x2 = cam_center + cam_direction

    for point in points:

        x0 = PhotoScan.Vector([point.coord[0], point.coord[1], point.coord[2]])

        numerator = (PhotoScan.Vector.cross(x0 - x1, x0 - x2)).norm()
        denominator = (x2 - x1).norm()
        distance = numerator / denominator

        if distance < min_dist:
            min_dist = distance
            min_point = point

    return min_point
3
Hi, I have tried the following variations but can't get accurate values, any ideas?

Code: [Select]
T = chunk.transform.matrix
scale = chunk.transform.scale
pt = chunk.point_cloud.points[0]
crs = chunk.crs

distance = (T.mulv(cam.center - pt.coord[:3]) * scale).norm()
distance = (crs.project(T.mulp(cam.center)) - crs.project(T.mulp(pt.coord[:3]))).norm()

Thank you!
4
General / Re: Problem with scales factor and software version
« Last post by Mohammed on July 18, 2018, 11:05:55 PM »
Agisoft team made a new update V1.4.3 (6506) and it seem they fix all bugs.
5
General / Axis base aligment for diferent model issue
« Last post by nopaixx on July 18, 2018, 10:35:14 PM »
I explain a bit our experiment(im completly niewbe on 3d modeling)

We use a spherical camera and take diferents diferents photos inside room, then we try to locate cameras positions, we export cameras in PhotoScan.CamerasFormatOPK, and finally we try to display on our system.
(i develop a python script that runs nice)

Camera aligment looks very nice.

Although the aligment and the relative positions of each cameras are correct, the base plane in which each model are generated varies between each model. I have added an image to illustrate the problem.


For example model1 on attachment could be nice, model2 in this case is correct algiment(and relative position nice) but model looks down (inverted on X), model 3 on that case is like we look in frontal.

The solution to the problem can be two:
   Force photoscan to create the alignments with the same axis base
   Detect in some way how photoscan has generated the model. (then i can swith axis on our system)


My photogramety knowledge is limited.... so I appreciate any suggestions.

Thanks






6
Bug Reports / Re: Frequent crashes with Photoscan Pro 1.4.3
« Last post by apatons on July 18, 2018, 09:17:18 PM »
Hello apatons,

Can you please also submit the crash report, if the issue is reproducible and crash reporter window appears (please also put the thread number in the comment, so that we could easily locate it)?

Also whether this problem exists from the beginning of running PhotoScan on this system or it happend after some driver/OS update or after installing more recent PhotoScan version?

Hello Alexey,

I'm trying to process again to see if the crash occur.

The problem exists from the beginning of running PhotoScan on this computer. I've tried update the GPU drivers to the newest version, but the problem kept ocurring. It happens after a few dense clouds chunk processing, usually when the computer is not being used by other process.

I will try to send you the crash report as soon as it happens again.

Thanks
7
Bug Reports / Re: Frequent crashes with Photoscan Pro 1.4.3
« Last post by Alexey Pasumansky on July 18, 2018, 08:59:41 PM »
Hello apatons,

Can you please also submit the crash report, if the issue is reproducible and crash reporter window appears (please also put the thread number in the comment, so that we could easily locate it)?

Also whether this problem exists from the beginning of running PhotoScan on this system or it happend after some driver/OS update or after installing more recent PhotoScan version?
8
General / Problem with scales factor and software version
« Last post by Jesus Yepes on July 18, 2018, 08:58:17 PM »
Good morning, mates.

It happens that I have installed the latest version of photoscan 1.4.3 and when I give in about, it tells me that I have installed version 1.4.1 build 5925

In addition to this, it gives me a scala factor error message, which I attach to the screen so they can verify.

Before hand, thank you very much

9
General / GCPs in Multispectral chunks
« Last post by ArnauCM on July 18, 2018, 08:48:29 PM »
Hello, Community experts,

I am working with multispectral imagery for the first time.

When I was manually pinning the GCPs in the pics I realized that they were only being set in the band I had as a 'Primary Channel' in that precise moment. If I change the band, the markers have to be replaced. It makes sense because there are 5 sets of images from 5 different bands from 5 different cameras (Rededge MicaSense).

My question is then: Should I put the markers 5 times? One for each band to then be able to export precise georeferenced orthomosaics for each band?

I hope I made myself clear as it is somehow difficult to explain. If not, tell me and I will rephrase it.

Thanks!
10
General / Re: Bowl-shaped distortion in DEM
« Last post by ArnauCM on July 18, 2018, 08:33:23 PM »
As always, thank you very much Alexey!
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