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Topics - 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 / 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 / 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 / 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 / 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 / Group photos from script
« on: January 17, 2017, 02:12:40 PM »
I have a group of stereo images. After adding all images to the project, I want to group them into two groups (Left and Right) and import the corresponding camera calibration files with format of Australis. Is this achievable using Python script?

Pages: [1]