Caleb sends us an article, "Wherein I present the results of and detail the technical feats needed to stitch together imagery from six cameras into interactive fully spherical imagery and video taken from a balloon sent up to nearly 100,000 feet. (*phew*)"
There are some other factors that come into play with panorama stitching. You want to avoid placing control points on objects that move between images taken. Typical panoramas are done with one camera being rotated after each photo is taken. Objects that move between photos taken that have control points on them will severely hinder the stitching process.
You also want to avoid placing control points on objects at largely different distances from the lens. Don’t mix control points between objects a couple feet away and a hundred feet away as the optimizer won’t be able to make them fit to one transform. I’m able to mostly ignore this issue at very high altitudes as everything is so far away that the difference between the closer and the further objects is so slight that it doesn’t do much to negatively impact the optimization. Of course, that means I don’t allow any control points to be placed on anything attached to the camera payload, including the parachute and the balloon.
In order to place control points you have to have common features. That’s why you need the overlap between images. The more overlap the better the result. In the sample images above we have one image, the fourth, that isn’t able to be connected to any of the others. And it’s not because there’s no overlap. There are three issues with the fourth image that presents us from finding control points in it.
Operation StratoSphere – Conclusion
Red Lava Toys is a Detroit-based startup that make super cool, low-cost custom Minecraft figs at a local makerspace: they CNC-milled their own injection molds for the body and joints, and have precision die-cut vinyl stickers that they print to order with long-lasting ink and cover with a clear adhesive coat, then place them on […]
My UK publisher, Head of Zeus, has published the official tour schedule for the British tour for Walkaway, with stops in Oxford (with Tim Harford), London (with Laurie Penny), Liverpool (with Chris Pak), Birmingham, and the Hay Literary Festival (with Dr Adam Rutherford). Hope to see you there!
My publicist just found an extra box of the cool promotional Walkaway multitools, and she’s generously offered to give them to the next 100 people to reserve tickets to the May 7th Walkaway event at Chicago’s Royal George Theater, where I’m presenting with CARDS AGAINST HUMANITY creator Max Temkin (current ticket-holders, don’t worry, you get […]
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All moms are different. But all moms like getting flowers on Mother’s Day, and that’s a fact (not, however a fact we can document in any fashion.) Instead of getting chewed out for forgetting to call her on the second Sunday of May, you can take care of it ahead of time with Teleflora’s flower […]