RICOH 910725 THETA V 360 Degree Spherical Camera - Metallic Grey

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Lo Presti, L.; Morana, M.; La Cascia, M. A data association algorithm for people re-identification in photo sequences. In Proceedings of the 2010 IEEE International Symposium on Multimedia, Taichung, Taiwan, 13–15 December 2010; pp. 318–323. [ Google Scholar]

The use of low-cost sensors for photogrammetric purposes is an important research topic since it is used in multiple application fields, such as robotics, mobile mapping, digitization of Cultural Heritage (CH), etc. [ 1, 2, 3, 4, 5]. In recent years, omnidirectional cameras, i.e., cameras with a 360° field of view (FOV) in the horizontal plane, are becoming more and more widespread. Depending on the construction of the omnidirectional camera, it is possible to obtain 3 types of sensors: dioptric, which uses a combination of shaped lenses (e.g., fisheye lenses); catadioptric, which combines a standard camera with a shaped (parabolic, hyperbolic, or elliptical) mirror; and polydioptric, which uses multiple cameras with overlapping FOV [ 6]. In the present paper, a polydioptric system was used, and specifically a Ricoh Theta camera, which has two fisheye lenses [ 7]. In the images generated by these cameras, feature distortion increases non-linearly from the center to the side of the images and equirectangular projection is generally used to represent the captured scene. In the field of photogrammetry, a key role in the construction of an accurate and precise 3D model is played by camera calibration. Many methods, toolboxes, and libraries have been proposed to estimate Internal Orientation Parameters (IOPs), varying according to the image acquisition configuration, the mathematical model (such as standard, extended and generic), the statistical approach, and the level of automation. However, simultaneous camera calibration for IOP and Relative Orientation Parameters (ROPs) estimation has not been taken into account in existing MATLAB toolboxes for fisheye lens calibration or even in commercial software [ 8].Most cameras will interface with an app on your smartphone for operation but will require a desktop for post-processing. A growing number of smaller dual-lens cameras have internal stitching, so you won’t have to mess with any external software. Current models also typically allow you to live stream to Facebook and YouTube. But while internal stitching is convenient for social sharing, stitching on a desktop will almost always give you better results.

Lo Presti, L.; La Cascia, M. Boosting Hankel matrices for face emotion recognition and pain detection. Comput. Vis. Image Underst. 2017, 156, 19–33. [ Google Scholar] [ CrossRef] An Easy-To-Use 360° camera that's simple to operate and capable of capturing high-quality spherical images and videos If you’re looking for a less expensive option, our favorite 360 camera – the Insta360 One X2 – is an affordable way to shoot 360 stills for virtual tours. It also features a tripod mount and captures 360 stills at a respectable 18MP. You can look closely at the specs for each individual sensor to better understand the camera’s actual resolution, but all you really need to know is that a 360 video camera that shoots 4K is not as impressive as it sounds. In reality, 4K is the minimum resolution you should look for in a 360 camera. If you want truly professional results, look for an 8K camera. Number of lenses Numbers never tell the whole story, but 8K is a seriously impressive figure in a consumer 360 camera's spec sheet. Qoocam’s 360 heavyweight outguns all of the competition on resolution, with a pair of 20MP CMOS sensors that work together to capture 8K footage at 30fps and 4K video at up to 200fps.Fu, J.; Alvar, S.R.; Bajic, I.; Vaughan, R. FDDB-360: Face detection in 360-degree fisheye images. In Proceedings of the 2019 IEEE Conference on Multimedia Information Processing and Retrieval (MIPR), San Jose, CA, USA, 28–30 March 2019; pp. 15–19. [ Google Scholar] Most virtual tours use 360-degree stills shot by a tripod-mounted camera. The best 360 cameras in 2021 can capture sharp, immersive images which are perfect for virtual tours. The Kandao QooCam 8K is again a great option here: it shoots dynamic still images at a resolution of 29.4MP (the highest of any camera in our list), allowing viewers to pan around sharp virtual scenes. It also features a tripod mount on its base for easy positioning. For movies, I think it really would be exciting to watch in 360 with a VR viewer type device. I think it would be even more exciting than watching in 3D. Audio is no barrier. There is such a thing as 360 surround which changes the sound based on which direction you're facing. The distance between the 2 lenses is 40mm, giving more room to the drone height. Meanwhile, with the FlowState stabilization function, pilots can shoot panoramic video and get an ultra-smooth and stable video, which makes the SMO 360 camera the best choice for pilots in search of high-quality 360 videos with FPV drones!

In addition, from a color point of view, the camera was able to produce images with rather homogeneous contrast brightness; as a result, the point cloud also took on a pleasingly colorful appearance; the development of higher performance sensors undoubtedly increases the quality of the model and this becomes important when the details to be investigated are rather small and detailed complex. Taking 360-degree videos is, naturally, more complex than stills, as the action all around the viewer will continue even if they’re not looking at the portion of the image where it’s happening. As streaming platforms get more sophisticated, live 360-degree broadcasts are also becoming more common, which is an unparalleled way to immerse yourself in an unfolding event (short of, y’know, actually being there). An aspherical lens is simply a lens that doesn’t have a spherical surface shape. Instead, it has an aspheric surface (i.e. non-spherical), usually with counter-curves near its edges.Laga, H.; Jospin, L.V.; Boussaid, F.; Bennamoun, M. A survey on deep learning techniques for stereo-based depth estimation. IEEE Trans. Pattern Anal. Mach. Intell. 2020. [ Google Scholar] [ CrossRef] [ PubMed] It touchscreen’s menu system is identical to the Hero 8, though it’s slightly smaller. The camera is waterproof up to 16 feet, but GoPro has said it isn’t meant for underwater use. Also, the Max’s audio capture is impressive, being able to correct even during fast winds. All in all, the GoPro Max delivers quality video and saves you money.

It’s easy to recognize. The edges of your photos look soft and fuzzy at low f-numbers. That’s usually a sign of spherical aberration. When stopping down, the fuzziness should decrease or even disappear. You’ll also find that the fewer lenses there are in the camera, the less detail you’ll get in the upper and lower extremes. This is not necessarily a bad thing, though. Most action of the action won’t take place in those directions. If you don’t want your audience looking in that direction, there’s no need to waste resources capturing that space. Mo’ lenses, mo’ problemsCorbillon, X.; Simon, G.; Devlic, A.; Chakareski, J. Viewport-adaptive navigable 360-degree video delivery. In Proceedings of the 2017 IEEE International Conference on Communications (ICC), Paris, France, 21–25 May 2017; pp. 1–7. [ Google Scholar] Whether the Ricoh Theta X is going to appeal to you will depend on what kind of content creator you are. If you're looking at this 360° camera as an alternative to a GoPro action camera, then bear in mind that its image stabilization – despite working on higher resolutions than on a GoPro – just isn’t as good. Vloggers should also look at the Theta X with suspicion purely because you can’t use an external microphone with it.