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Cloud VR Overview
Published in Huaping Xiong, Dawei Li, Kun Huang, Mu Xu, Yin Huang, Lingling Xu, Jianfei Lai, Shengjun Qian, Cloud VR, 2020
Huaping Xiong, Dawei Li, Kun Huang, Mu Xu, Yin Huang, Lingling Xu, Jianfei Lai, Shengjun Qian
Software tool providers: Mainly provide operating systems and information processing systems to deliver sensing and collection, coding and decoding, rendering and display, and physical feedback. Software tools are indispensable for content development and application, while content development requirements also guide tool development. For example, VR photography and videography require image capture and stitching tools and content creation requires computer graphics (CG) and modeling tools, as well as rendering engines. In addition, VR content needs to adapt to different platforms and terminals due to the lack of unified industry standards.
A virtual reality photography application to assess spatial memory
Published in Behaviour & Information Technology, 2023
M.-Carmen Juan, Miguel Estevan, Magdalena Mendez-Lopez, Camino Fidalgo, Javier Lluch, Roberto Vivo
The technique known as Virtual Reality (VR) photography (also known as cinematic VR) allows the interactive display of wide-angle panoramic photographs (usually 360°). A 360° photograph is a panoramic image with which interaction is possible. This type of photograph surrounds the point from which the photo is taken, so all of the details of the environment in which the photograph is taken can be observed. There are currently different devices for taking panoramic photographs (e.g. the Insta360 ONE R camera). These types of cameras usually have different wide-angle lenses, so they cover 360° and internally merge the photographs taken with the different lenses to finally obtain a 360° photograph.
Computer-aided inverse panorama on a conical projection surface
Published in Inverse Problems in Science and Engineering, 2019
The terms ‘wide conical perspective’ and ‘conical panorama’ were introduced with development of digital virtual reality photography (VR photography) and digital panorama creation methods. VR photography is the art of capturing or creating a complete scene as a single panoramic image, as viewed when rotating about a single central position. Scanners and special rotating or moving digital cameras produce sequences of images taken in a multi-row 360-degree rotation. They are next stitched to form panorama and give a horizontally unlimited image [13]. Panorama creation methods, embracing picture taking, stitching of separate scenes and the image alignment techniques are open research problems. Some research proposes various adaptive inverse perspective mapping algorithms to obtain accurate bird’s-eye view images from the sequential images of forward looking cameras [14]. Inverse perspective mapping technique of bird-view images of a road based on robust estimation of vanishing points is proposed in [15]. On the other hand, an extension of the geometrical transformation of inverse perspective mapping to the processing of stereo images is presented in [16]. Recently, we can notice a great interest in not only indoor and outdoor panoramas created by cameras rotating around a vertical axis but also in outdoor panoramas created by moving cameras [17]. The newest and exciting field is forming of the so called inverse/object panorama which can be created by the motion of a camera around an object or by the object rotation while the camera stays in a fixed position [18]. VR photography can also be used for displaying object panorama which commonly is known as 360 Object VR, 360 product photography and 360 product views created during one full object revolution. One can find some examples of reverse/inverse panoramas on the Internet as well as the research on this technique has started to extend too. Most of the research deals with improvement in panorama creation accuracy and limitations [17]. The capability of taking high-resolution images continuously over the full horizon generates an efficient means for 3D object reconstruction as well. Therefore, there are also some interesting examples of the application of object panoramas, especially in 3D modelling of cultural heritage [19].