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Photogrammetry

This AI recreated a whole virtual San Francisco from 2.8 million photos

Apr 4, 2022 by John Aldred Add Comment
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AI-generated imagery and 3D content have come a long way in a very short space of time. It was only two years ago that Google researchers revealed NeRF, or Neural Radiance Fields, and less than two weeks ago NVIDIA blew us away with almost real-time generation of 3D scenes from just a few dozen still photographs using their “Instant NeRF” techniques.

Well, now, a new paper has been released by the folks at Waymo describing “Block-NeRF“, a technique for “scalable large scene neural view synthesis” – basically, generating really really large environments. And as a proof of concept, they recreated the city of San Francisco from 2.8 million photographs. And this video, Károly Zsolnai-Fehér at Two Minute Papers explains how it all works.

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This crazy new NVIDIA tech turns 2D photos into fully 3D scenes in seconds

Mar 25, 2022 by John Aldred Add Comment
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Creating 3-dimensional worlds and objects from flat 2-dimensional photographs isn’t a new concept. It’s been happening for years. In the early days (and still often, today), we used photographs inside 3D modelling software as reference images for our 3D creations. A few years pass and along comes photogrammetry, allowing the automatic creation of 3D models and scenes from a couple of hundred photos.

Photogrammetry often takes hours, but this new tech from NVIDIA can do it in seconds. And you don’t need hundreds of images in order to do it, either. Just a few dozen. The tech demo above illustrates the principle where NVIDIA reproduces an iconic image of Andy Warhol shooting a Polaroid camera and with just a relatively handful of images, it gets turned into a 3D scene with a virtual camera that can fly around it with ease.

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You can now 3D scan objects with any iPhone – even if it doesn’t have a LIDAR sensor

Sep 5, 2021 by John Aldred 6 Comments
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As more people have gotten into 3D printing, not to mention combining 3D objects with photographs, 3D scanning has become a big thing. Especially, apparently, when it comes to smartphones. With many smartphones featuring Time of Flight depth sensors these days, though, that’s not much of a surprise. Not all phones feature one, though, which has made things a little tricky.

Now, though, it looks like the folks at Polycam have figured out a solution that just uses the regular normal flat 2D camera of the iPhone to create 3D objects that you can bring right into your CG scenes. Unfortunately, yes, you read that right. iPhone. No word on Android yet – although there are rumours.

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This AI uses tourist photos to create mind-blowing 3D renderings

Aug 11, 2020 by Dunja Djudjic 5 Comments
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A team of researchers at Google has come up with really awesome use of all those photos of popular tourist spots. They’ve created an algorithm that takes those photos and turns them into realistic and very detailed 3D renderings. And the best of all is that it even edits out interfering objects and evens out the changes in lighting.

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Experimenting with photogrammetry at home

Jan 21, 2019 by Dušan Ković 1 Comment
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This is going to be a long one…

Photogrammetry is my hobby for the last couple of years. My first try was a small wooden Piggy from four or five years ago. That was done with a mobile phone (Nexus 4) without any knowledge of proper lighting, manual control of the camera, balancing photos, etc. The scanned result was pretty bad, but I learned a lot from it. After that, I bought a Canon EOS700D with kit lens and started to learn more about the proper way to take photos, how to correct them and how to work on the scanned geometry. Results got a lot better with the proper equipment

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Automating image capture for 3D scanning through photogrammetry

Sep 29, 2018 by Michael J. Bennett Add Comment
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3D data creation is part of a growing trend in the use of computational imaging techniques within cultural heritage digitization shops. In particular, operational adoption of photogrammetry has been witnessed at such institutions as the Minneapolis Institute of Art (MIA), the Smithsonian, and the University of Virginia Library.

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Udi Tirosh: from diyphotography.netUdi Tirosh is an entrepreneur, photography inventor, journalist, educator, and writer based in Israel. With over 25 years of experience in the photo-video industry, Udi has built and sold several photography-related brands. Udi has a double degree in mass media communications and computer science.

Alex Baker: from diyphotography.netAlex Baker is a portrait and lifestyle driven photographer based in Valencia, Spain. She works on a range of projects from commercial to fine art and has had work featured in publications such as The Daily Mail, Conde Nast Traveller and El Mundo, and has exhibited work across Europe

David Williams: from diyphotography.netDave Williams is an accomplished travel photographer, writer, and best-selling author from the UK. He is also a photography educator and published Aurora expert. Dave has traveled extensively in recent years, capturing stunning images from around the world in a modified van. His work has been featured in various publications and he has worked with notable brands such as Skoda, EE, Boeing, Huawei, Microsoft, BMW, Conde Nast, Electronic Arts, Discovery, BBC, The Guardian, ESPN, NBC, and many others.

John Aldred: from diyphotography.netJohn Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

Dunja Djudjic: from diyphotography.netDunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

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