#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO HOW TO#
#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO MANUAL#
#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO SOFTWARE#
#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO DOWNLOAD#

#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO HOW TO#

James and Robson (2014) in their paper Mitigating systematic error in topographic models derived from UAV and ground‐based image networks address how to minimize the distortion from self-calibration.īowling effect on point cloud over 13,000+ image dataset collected by World Bank Tanzania over the flood prone Msimbasi Basin, Dar es Salaam, Tanzania. Automatic or self calibration is possible and desirable with drone flights, but depending on the flight pattern, automatic calibration may not remove all distortion from the resulting products. Temperature changes, vibrations, focus, and other factors can affect the derived parameters with substantial effects on resulting data. mesh-size should be increased to 300000-600000 and -mesh-octree-depth should be increased to 10-11 in urban areas to recreate better buildings / roofs.Ĭamera calibration is a special challenge with commodity cameras. texturing-data-term should be set to area in forest areas. Using this flag will increase runtime and memory usage, but may produce sharper results. ignore-gsd is a flag that instructs ODM to skip certain memory and speed optimizations that directly affect the orthophoto. Decrease this value for a higher resolution result. orthophoto-resolution is the resolution of the orthophoto in cm/pixel. Your computer is running out of memory, what can you do?.Are there other licensing options aside from the AGPLv3?.I want to build a commercial application that includes ODM.If I use the native version of the software, how can I allocate more resources for processing?.

#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO SOFTWARE#

The software is not using all of my CPU cores / memory / GPU all of the times.Can I process two or more orthophoto GeoTIFFs to stitch them together?.Getting Started with Distributed Split-Merge.What Are Cloud Optimized GeoTIFFs (COGs)?.Why would one use a particular Camera Lens Model?.

#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO MANUAL#

When are manual selections appropriate?.

True: -boundary - 3D Model/Textured Mesh.

True: -boundary - Digital Elevation Model.

Using Potree 3D viewer module on WebODM.

After it finishes (assuming you survive that long).

I am trying to solve the problem by pre-calculating the degree of misalignment and then rotating or translating the original image according to that misalignment beforehand. If the misalignment is entirely due to physical misalignment between the multispectral cameras, then the degree of misalignment between bands should be common between images. I am currently trying to address this issue by processing the original image. I don’t think the introduction of the RGB image has anything to do with this image misalignment, as the result remains the same when the RGB image is excluded. I don’t know the details of how they were integrated, but the output is 6 bands (Red Edge, NIR, Red, Green, Blue, Band_6), as noted above. The RGB images were included as JPGs without any conversion. Therefore, we would expect the absolute magnitude of the misalignment in the image to be smaller at lower flight altitudes if the same area is to be captured. Unfortunately, the results are still the same and there is a misalignment between the NIR and R bands in the expect this problem is due to the physical misalignment of the multispectral cameras. I updated to the newst version (WebODM 2.0.3) and tried to process the images except for the RGB images. Is there any way to correct this misalignment, either through options or post-processing? I believe this is due to the misalignment between the camera sensors of Maivc 3M.

The RGB image is fine, but the MS (RE, NIR) image appears off.

Red, Green are in both the RGB and MS images, which ones were used by orthophoto?.

what does Band_6 mean (it is dark when displaying this band)?

The output orthophoto has 6 bands (Red Edge, NIR, Red, Green, Blue, Band_6).

#MULTISPEC CAMERA PROBLEM WITH ORTOPHOTO DOWNLOAD#

You can download my orthophoto from following link

option: dem-resolution: 2.0, dsm: true, dtm: true, feature-quality: ultra, feature-type: hahog, matcher-neighbors: 16, optimize-disk-space: true, orthophoto-resolution: 1.0, pc-quality: ultra, pc-sample: 0.01, pc-tile: true, rolling-shutter: true, radiometric-calibration: camera, sfm- algorithm: planar.

the number of pictures: 2420 (including RGB and MS photos).

I created a multispectral image with WebODM and it came out fine, but I have a few questions.įirst, the processing environment is as follows

I have recently used Mavic 3M to take images of a riverbed.

Multispec camera problem with ortophoto