Results 1 to 10 of about 125,537 (170)

POSITIVE AND NEGATIVE ROUGHNESS ACCORDING TO LOCAL DIFFERENCES BETWEEN DEM SURFACE AND 3D REFERENCE PLANES [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The irregularities of the earth’s surface are quantified by means of roughness measurements using Digital Elevation Models (DEM’s). This article presents a roughness measurement method that is based on the calculation of the difference of altitude ...
J.-F. Parrot, C. Ramírez-Núñez
doaj   +1 more source

Liouville-Type Theorem for Nonlinear Elliptic Equations Involving Generalized Greiner Operator

open access: yesMathematics, 2022
In this paper, we study the Liouville-type behaviors of the generalized Greiner operators with nonlinear boundary value conditions. We use the technique based upon the method of moving planes.
Wei Shi
doaj   +1 more source

Rotation-Rotation Mechanism moving with Respect to a Plane [PDF]

open access: yesINCAS Bulletin, 2019
The relative motion of a robotic arm formed by homogeneous bars of different lengths and masses, hinged to each other is investigated. The first bar of the mechanism is articulated on a platform, considered for three cases: placed on the surface of the ...
Roxana Alexandra PETRE   +2 more
doaj   +1 more source

Feature Extraction for Moving Targets Based on the Statistical Characteristics of Echo Amplitude with the L-Band Fully Polarimetric Radar

open access: yesRemote Sensing, 2022
Non-imaging radar can achieve the detection and localization of moving targets, but it faces difficulties in the classification of targets. Aiming for the application of moving target classification by low/medium resolution non-imaging radar, this paper ...
Chuang Zhang   +13 more
doaj   +1 more source

Moving Camera-Based Object Tracking Using Adaptive Ground Plane Estimation and Constrained Multiple Kernels

open access: yesJournal of Advanced Transportation, 2021
Moving camera-based object tracking method for the intelligent transportation system (ITS) has drawn increasing attention. The unpredictability of driving environments and noise from the camera calibration, however, make conventional ground plane ...
Tao Liu, Yong Liu
doaj   +1 more source

A MULTI-VIEW IMAGE MATCHING METHOD FOR FEATURE POINTS BASED ON THE MOVING Z-PLANE CONSTRAINT [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Focusing on the serious occlusion problem in city images, this paper makes full use of the advantage of multi-view image matching, and proposes a reliable multi-view image matching method based on the moving Z-Plane constraint.
J. Wang, W. Song, F. Bu
doaj   +1 more source

The Surgical Anatomy and the Deep Plane Thread Lift of the Buccal Fat Pad

open access: yesPlastic and Reconstructive Surgery, Global Open, 2020
Background:. Management of facial rejuvenation by the thread lift procedure has evolved over the past few years. The role of deep plane thread lift for buccal fat pad reposition was advocated.
Yun-Ta Tsai, MD   +6 more
doaj   +1 more source

Moving Vertices to Make Drawings Plane [PDF]

open access: yes, 2008
A straight-line drawing $δ$ of a planar graph $G$ need not be plane, but can be made so by moving some of the vertices. Let shift$(G,δ)$ denote the minimum number of vertices that need to be moved to turn $δ$ into a plane drawing of $G$. We show that shift$(G,δ)$ is NP-hard to compute and to approximate, and we give explicit bounds on shift$(G,δ)$ when
Xavier Goaoc   +4 more
openaire   +3 more sources

Moving planes, moving spheres, and a priori estimates

open access: yesJournal of Differential Equations, 2003
The authors use the method of moving planes and the method of moving spheres to obtain a priori estimates for the solutions of semi-linear elliptic equations. By the method of moving planes they establish a sharper estimate on the solutions for prescribing scalar curvature equations with indefinite curvature functions.
Chen, Wenxiong, Li, Congming
openaire   +2 more sources

Exploiting Satellite Focal Plane Geometry for Automatic Extraction of Traffic Flow from Single Optical Satellite Imagery [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
The focal plane assembly of most pushbroom scanner satellites is built up in a way that different multispectral or multispectral and panchromatic bands are not all acquired exactly at the same time.
T. Krauß
doaj   +1 more source

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