Run “Optimize cameras…” (check on: f, cx, cy, k1, k2, k3, p1, p2). Use the manual selection tools to remove obvious outlier points in the sparse point-cloud.This makes it possible to go back to your copy if something goes wrong in the following steps. Make a copy of your chunk before you proceed.After you have done this, run “Optimize cameras…”. After alignment has finished, go through your photos and uncheck and disable photos in turns of the photo-block.The “Adaptive camera model fitting” will let Photoscan select which camera parameters that should be included in the adjustment based on their reliability estimate. It can be necessary to adjust the “key point”- and “tie point”-limits to speed up the processing. Read in the manual what the accuracy levels mean. You can use “Highest” as well, but it will take longer time. Set “Accuracy” to “High” and “Pair preselection” to “Reference”. Align your photos: “Workflow” –> “Align photos…”.Select photos with lower quality than 0.5 and disable them. You can now sort by the “Quality”-column.To display the estimated image quality of the photos, in the Photos pane change the view mode to “Details”.Image quality is estimated by right-clicking on a photo in the Reference-window, select “Estimate Image Quality…”, select “All cameras”. With quality value of less than 0.5 units are recommended to be disabled and thus excluded from the photogrammetric processing.
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