Results 1 to 10 of about 20,407,724 (239)
Perspective Charts in a Multi-Foci Globe-Based Visualization of COVID-19 Data
ISPRS International Journal of Geo-Information, 2022 The use of perspective projection in data visualization has been shown to potentially aid with the perception of small values in datasets with important variations at multiple scales.
Mia MacTavish +2 more
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On Galvanometer Laser Projection Positioning to Layups of Large Composite Material
Machines, 2023 A laser projection positioning technique for large composite production based on a scanning galvanometer is proposed in this paper. First, based on the projecting model of the scanning galvanometer, a solution is proposed for the problem which includes ...
Ziqi Xu +3 more
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Absolute IOP/EOP Estimation Models without Initial Information of Various Smart City Sensors
Sensors, 2023 In smart cities, a large amount of optical camera equipment is deployed and used. Closed-circuit television (CCTV), unmanned aerial vehicles (UAVs), and smartphones are some examples of such equipment. However, additional information about these devices,
Namhoon Kim, Sangho Baek, Gihong Kim
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Sensors, 2023 This paper proposes the design of a 360° map establishment and real-time simultaneous localization and mapping (SLAM) algorithm based on equirectangular projection. All equirectangular projection images with an aspect ratio of 2:1 are supported for input
Bo-Hong Lin +3 more
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Switching Quantum Reference Frames for Quantum Measurement [PDF]
Quantum, 2020 Physical observation is made relative to a reference frame. A reference frame is essentially a quantum system given the universal validity of quantum mechanics. Thus, a quantum system must be described relative to a quantum reference frame (QRF). Further
Jianhao M. Yang
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Sensors, 2023 Structured light technology is typical for capturing 3D point cloud data. This paper proposes a 3D reconstruction system to obtain point cloud data of complex objects based on nine-order Gray code and an eight-step structured light projection combined ...
Yun Feng +3 more
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Sensors, 2019 In this paper, we propose PPAP, an augmented reality platform with an actuated projector for dynamic user-perspective projection. In PPAP, a stationary camera is used jointly with a pan−tilt motorized projector-camera unit.
JungHyun Byun, Tack-Don Han
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A New Pose Estimation Algorithm Using a Perspective-Ray-Based Scaled Orthographic Projection with Iteration. [PDF]
PLoS ONE, 2015 Pose estimation aims at measuring the position and orientation of a calibrated camera using known image features. The pinhole model is the dominant camera model in this field.
Pengfei Sun +3 more
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APPLICATION OF DANDELIN’S THEOREM TO DRAWING CIRCLES IN PARALLEL PERSPECTIVE
Journal of Industrial Design and Engineering Graphics, 2017 The paper analyses a problem of great theoretical importance in practice of perspective: the nature of the perspective of a circle from the horizontal plane according to the relative position between the spectator plane (parallel to the picture plane ...
Daniel Dobre
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TRANSFORMATION ALGORITHM FOR IMAGES OBTAINED BY OMNIDIRECTIONAL CAMERAS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 Omnidirectional optoelectronic systems find their application in areas where a wide viewing angle is critical. However, omnidirectional optoelectronic systems have a large distortion that makes their application more difficult.
V. P. Lazarenko +3 more
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