This article contains the main causes that generate Error R0009.
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Description and causes
Not enough images
Not enough overlap
Problem with the EXIF tag of the images
Folder containing images not selected properly
GPU acceleration not supported
Different types of images imported
Failed to stitch images, R0009: An error occurred while stitching the images.
The error occurs after images are imported, and the processing has started. There are several reasons why this error can happen:
The minimum number of images to generate an orthomosaic in PIX4Dfields is three, if fewer are imported, PIX4Dfields will fail to process.
The overlap between images is not enough for PIX4Dfields to find matches. PIX4Dfields recommended side and frontal overlap is 80%.
Sometimes the EXIF tags of the images are not correct, and this causes PIX4Dfields to fail when processing. On some occasions, the Phantom 4 Multispectral has incomplete coordinates in the EXIF of the images. If images are located in a different place on earth, this is typically the problem. The images with faulty GPS coordinates should not be selected for processing.
Image location with wrong EXIF coordinates
When selecting the Folder containing the images to be processed, it has to be double-clicked. Otherwise, all the images in the above folder will be imported, which will cause PIX4Dfields to fail when processing.
After installing a new PIX4Dfields version, some libraries can be missing, which will cause PIX4Dfields to fail during processing. PIX4Dfields needs to be installed again, there is no need to uninstall. The projects will not be lost.
A GPU incompatibility can cause PIX4Dfields to fail while processing, disable GPU acceleration if needed.
PIX4Dfields can process images from one camera at a time, for cases with two-camera images, they have to be processed separately. An example is the Quantix Mapper drone has two independent cameras, the images of which need to be processed separately. For more information: How to process Quantix Mapper.