Results 11 to 20 of about 1,338,740 (314)
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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HOPIS: Hybrid Omnidirectional and Perspective Imaging System for Mobile Robots
Sensors, 2014 In this paper, we present a framework for the hybrid omnidirectional and perspective robot vision system. Based on the hybrid imaging geometry, a generalized stereo approach is developed via the construction of virtual cameras. It is then used to rectify
Huei-Yung Lin, Min-Liang Wang
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Entropy, 2019 To provide a scientific reference for formulating an effective soybean irrigation schedule in the Huaibei Plain, potted water deficit experiments with nine alternative irrigation schemes during the 2015 and 2016 seasons were conducted.
Yi Cui +4 more
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PointOcc: Cylindrical Tri-Perspective View for Point-based 3D Semantic Occupancy Prediction [PDF]
arXiv.org, 2023 Semantic segmentation in autonomous driving has been undergoing an evolution from sparse point segmentation to dense voxel segmentation, where the objective is to predict the semantic occupancy of each voxel in the concerned 3D space. The dense nature of
Si Zuo +4 more
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A Control Barrier Perspective on Episodic Learning via Projection-to-State Safety [PDF]
IEEE Control Systems Letters, 2020 In this letter we seek to quantify the ability of learning to improve safety guarantees endowed by Control Barrier Functions (CBFs). In particular, we investigate how model uncertainty in the time derivative of a CBF can be reduced via learning, and how ...
Andrew J. Taylor +3 more
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A Control Lyapunov Perspective on Episodic Learning via Projection to State Stability [PDF]
IEEE Conference on Decision and Control, 2019 The goal of this paper is to understand the impact of learning on control synthesis from a Lyapunov function perspective. In particular, rather than consider uncertainties in the full system dynamics, we employ Control Lyapunov Functions (CLFs) as low ...
Andrew J. Taylor +5 more
semanticscholar +1 more source
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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Relating vanishing points to catadioptric camera calibration [PDF]
, 2013 This paper presents the analysis and derivation of the geometric relation between vanishing points and camera parameters of central catadioptric camera systems.
Allinson, Nigel +2 more
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Projection distortion analysis for flattened image mosaicing from straight uniform generalized cylinders [PDF]
, 2001 This paper presents a new approach for reconstructing images mapped or painted on straight uniform generalized cylinders (SUGC). A set of monocular images is taken from different viewpoints in order to be mosaiced and to represent the entire scene in ...
Bors, A G +3 more
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