UWIS underwater GPS navigation continues apace with real-time viewing of 3D wreck models during a dive.
Regular followers of the Vobster Photogrammetry Project will know we have been working on this for some time. The project is all done in our spare time, for free and for the sheer joy of pushing the boundaries of photogrammetry. The game changer has been the introduction of UWIS and underwater GPS. To keep the Read more about A Snapshot in Time[…]
Underwater GPS being used to reconstruct 3D photogrammetry models.
Underwater GPS meets Photogrammetry For a while we have been using GPS located cameras to construct highly accurate models of defensive structures known as pillboxes. Fixing a camera position above the waves is straightforward enough and you can build representative models without additional scale bars or measurements if the GPS signal is accurate. The problems Read more about Accuracy Defined?[…]
Discussion around the use and benefits of accurate GPS values with image alignment in photogrammetry
Slope Analysis As we have discussed before Digital Elevation Models help us understand subtle changes in depth (or height) of the subject. We also think they are art in their own right. Tucked away in the 1.4 release of Agisoft Photoscan Pro is a preference that adds slope analysis. The colours applied to the model Read more about DEMS – Another View[…]
Pirate Port in the Press Published in this month’s BSAC SCUBA magazine is a four page account of how Jamaica’s Port Royal was scanned on behalf of MSP/National Geographic/Discovery Canada for the production of Drain the Sunken Pirate City. The programme now being broadcast on National Geographic Channel here in the UK. Port Royal is Read more about Drain the Pirate City[…]
Sketchfab Maps The previous update discussed how Sketchfab labs had started to test the waters with geo locating 3D models. One limitation for those of us who work with underwater photogrammetry was precise location. When generating the tagging code all we could was get close and there was no way to enter precise longitude and latitude coordinates. Read more about Recent News – Maps and Mags[…]
Where is it? Just the other day the discussion here at Deep3D was all about answering the question Where am I? Now we can share where is it? Sketchfab is the place where most of my work ends up being shared and viewed. You can upload directly from within Agisoft Photoscan and there are some very neat tools to Read more about Maps and Sketchfab[…]
Where am I? Trying to scan underwater sites such as submerged landscapes or very broken wrecks often results in becoming hopelessly lost. Add into the mix the vision limiting experience of low visibility and a difficult job gets a lot harder. When on a sightseeing dive disorientation can be frustrating as you fin around missing Read more about Underwater GPS and Photogrammetry[…]