نتایج جستجو برای: panoramic projection
تعداد نتایج: 68816 فیلتر نتایج به سال:
A spherical stereo panorama is a pair of panoramic images with horizontal parallax, that both have a complete spherical projection covering 360◦ in azimuth and 180◦ in elevation. We present an analyze a new method to generate spherical stereo panorama by using one camera with regular lens, which are compatible for VR HMD display.
A novel square equal-area map projection is proposed. The combines closed-form forward and inverse solutions with relatively low angular distortion minimal cusps, a combination of properties not manifested by any previously published projection. Thus, the new has lower than solution. Utilizing quincuncial arrangement, places north pole at center divides south between its four corners; can be se...
OBJECTIVES Conventional panoramic radiography, a widely used radiographic examination tool in implant treatment planning, allows evaluation of the available bone height before inserting posterior mandibular implants. Image distortion and vertical magnification due to projection geometry is well described for rotational panoramic radiographs. To assess the accuracy of vertical height measurement...
We present the i-ConeTM: a new projection-based panoramic display system for virtual environments. The i-ConeTM uses conical screen geometry, resulting in optimized projector placement to create an extended workspace for standing participants in a front projection curved screen display with a very large continuous field of view. Improved acoustical properties of the conical screen geometry enab...
Panoramic video and stereoscopic panoramic are essential carriers of virtual reality content, so it is very crucial to establish their quality assessment models for the standardization industry. However, challenging evaluate at present. One reason that spatial information warped due projection process, conventional (VQA) method difficult deal with this problem. Another traditional VQA problemat...
Digital panoramic photography has become a popular tool to record landscapes, city squares or indoor scenes in a single image with a full 360° view. In photogrammetric applications, a digital panoramic camera may present an interesting alternative to conventional image acquisition techniques such as large format film or plate based cameras. Advantages of such a camera are their very high resolu...
We present a method for manipulation and visualization of wide-angle images using transformations defined on the complex plane C. We map the unit sphere S2 to C using the stereographic projection, multiply the complex plane by a given complex number, and map the result back to the sphere using the inverse of the stereographic projection. Since all these transformations preserve angle, we obtain...
Three-dimensional (3D) scene reconstruction plays an important role in digital cities, virtual reality, and simultaneous localization mapping (SLAM). In contrast to perspective images, a single panoramic image can contain the complete information because of wide field view. The extraction matching feature points is critical difficult part 3D using images. We attempted solve this problem convolu...
Panoramic images have been widely used in the diagnosis of dental diseases. In process panoramic image reconstruction, position arch curve usually affects quality display content, especially completion level image. addition, metal implants patient’s mouth often lead contrast to decrease. This paper describes a method automatically synthesize from cone beam computed tomography (CBCT) data. The p...
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