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Messages - wangli

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I want to build and export orthophotos with different resolutions using script.
And the main flow is as follows:
for photo in chunk
   read the the [X Y Z] values (after aligning) of  the current photo
   calculate the spatial resolution of current photo with Z value and pixle size and focal length of the camera
   disable all photos and enable current photo
   specify a coordinate system according to the X (latitude) value, for example North Pole Stereographic for photos with latitude >60N, and Equidistant Cylindrical for 60S<latitude<60N
   build orthomosaic with the calculated resolution and specified coordinate system, and the surface is mesh
   export orthophoto

General / Orthoimages are only part of the corresponding source images
« on: April 18, 2023, 04:59:46 AM »
Hi guys,

The size of source images is 4096*3072, and resolution is A, I build a  orthomosaic with a resolution of B, B<A, then I export the orthoimages.
I found that, the max size of orthoimages is 8193*8193, and some of the orthoimages are only part of  the corresponding source images.

What should I do to generate orthoimages the same as corresponding source images?

General / Re: About the dense cloud confidence value
« on: April 14, 2023, 10:14:21 AM »
Hi, Alexey

Many thanks for your reply.
What's the relationship between the the number of depth maps extracted from the dense cloud and the confidence value of it?
And how can I set a reasonable threshold of confidence value for dense cloud filter, instead of  subjective judgment.

General / About the dense cloud confidence value
« on: April 13, 2023, 05:35:05 AM »

I want to know how to calculate the confidence value of dense cloud in metashape, and is it normalized to 0-255 finally?
Generally speaking,  what's the range of confidence value of dense cloud can be filtered as noise?

General / Can PhotoScan be used for image mosaic?
« on: April 25, 2017, 05:04:54 AM »

Can PhotoScan be used for image mosaic, just mosaic (not orthomosaic)?

Bug Reports / Re: Problems of activation of 1.3
« on: March 31, 2017, 03:12:20 PM »
Hi Alexey,

The "--proxy-disabled" did not work, and I have sent the activation request to Thanks a lot.

Bug Reports / Problems of activation of 1.3
« on: March 31, 2017, 01:31:45 PM »
I try to activate PhotoScan 1.3 with the serial number which is used for old versions (my PC is off-line), and it is notice that "can't connect to activation server". I activated the old version off-line successfully.

General / Re: How to export orthoimage of a single input image?
« on: March 21, 2017, 12:12:26 PM »
Hi Alexey,

Thanks very much. And any new advice for my previous  topic? (

General / How to export orthoimage of a single input image?
« on: March 21, 2017, 11:11:17 AM »

After "building DEM" and "building orthomosaic", how to export orthoimage of a single input image?

General / Re: problems of orthomosasic (version 1.2.6)
« on: February 13, 2017, 06:26:04 AM »
Hi Alexey,

We changed the yaw and pitch angles of the stereo system step by step, and acquired 48 pairs of images. All these images are used in our project.

I think the parameters using for alignment, dense cloud generation and mesh reconstruction are appropriate, since this project was created by the version 1.2.5, and the orthomosaic image was exported correctly. Because the holes in orthomosaic image can not be closed with version 1.2.5, I upgraded PhotoScan to version 1.2.6, and unfortunately, these's something wrong.

The mesh view for the area is shown as the attachment. Similarly, more details are shown near to the location of the imaging system, and few valid information is shown in far area.

General / Re: problems of orthomosasic (version 1.2.6)
« on: January 24, 2017, 11:45:17 AM »
The original images are acquired by a stereo system, similar to the MastCam carried on Curiosity rover. The stereo system is located near to point5, so image quality is bad far away from the imaging system, and texture is distorted severely in far area.

General / problems of orthomosasic (version 1.2.6)
« on: January 24, 2017, 10:36:17 AM »
why the exported orthomosaic image  is only a small part of texture image in the project as I marked by red circle in 'full_texture_image', and has a stair-step shape? I did not encounter this problem with older versions.

And how to close the holes in the texture and orthomosaic image, although it is  definitely occluded regions.

Is there any evidence that a better alignment result can be generated with initial camera position and orientation information than that without initial values?

Python and Java API / Re: Group photos from script
« on: January 22, 2017, 04:33:30 AM »
Hi Alexey,
It works, thanks again.

Python and Java API / Re: Group photos from script
« on: January 19, 2017, 05:46:58 AM »
Hi Alexey,
Thanks so much. It works well with calibration files of the default Agisoft format, but not for other formats. Should we have to specify the format of calibration files? It is Australis in my project. Besides, pixel size and focal length are written in Australis calibration files, can we read them out and import to the corresponding textboxes in the window of "Camera Calibration".

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