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Stitching artifacts - PIX4Dreact
This article discusses the causes of artifacts in orthomosaics.
Graphics card driver issue
This is a common problem. The artifacts look really strange. Many colors are present, and it's a combination of big and small squares, images are scrambled, looking like a Picasso painting.
Example artifacts:
This is commonly related to outdated graphics card drivers. To solve this:
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The drivers of the graphics card should be updated. This article can be handy: Update graphics card driver.
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After updating drivers and restarting the device, process the imagery again.
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If the problem persists, import the imagery again and disable GPU acceleration - Processing options.
Color balance
Different colors between images can generate a "honeycomb" effect:
To solve this issue and improve the color transitions in the orthomosaic:
- Import the images again.
- Enable Full Blending under Advanced settings - Processing options.
Insufficient overlap
When the overlap is insufficient, processing may fail, or artifacts can occur in the orthomosaic.
Make sure the overlap is more than 70% for both the side and frontal overlap.
Corrupted images
Non-nadir or distorted images can generate artifacts.
To solve this issue, inspect the images around the area and discard them when processing.