Results 101 to 110 of about 861,374 (204)

Epipolar Geometry Improves Video Generation Models

open access: yesCoRR
Video generation models have advanced significantly through the latent diffusion transformers trained with rectified flow techniques. Yet these models still struggle with geometric inconsistencies, unstable motion, and visual artifacts that break the illusion of realistic 3D scenes.
Kupyn, Orest   +5 more
openaire   +2 more sources

Movement Detection Based on Dense Optical Flow for Unmanned Aerial Vehicles

open access: yesInternational Journal of Advanced Robotic Systems, 2013
In this paper we present a novel computer vision-based movement detection algorithm which can be used for applications, such as human detection with unmanned aerial vehicles.
Josef Maier, Martin Humenberger
doaj   +1 more source

Wide baseline stereo matching based on scale invariant feature transformation with hybrid geometric constraints

open access: yesIET Computer Vision, 2014
Wide baseline stereo matching is a challenging task because of the presence of significant geometric deformations and illumination changes within the images.
Huachao Yang, Mei Yu, Shubi Zhang
doaj   +1 more source

An Epipolar Geometry Guided Feature Matching Method for Absolute Visual Localization of UAV

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Autonomous localization is a fundamental requirement for uncrewed aerial vehicle (UAV) navigation tasks. In environments where the Global Navigation Satellite System is unavailable, visual localization utilizing onboard cameras emerges as the primary ...
Xiaopeng He, Jie Jiang, Yuan Chen
doaj   +1 more source

Learning from noisy pose priors: Geometry-guided routing attention for robust image matching

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
In operational photogrammetry and remote sensing, image pairs are often accompanied by approximate pose information from GNSS/IMU, coarse registration, SLAM, or upstream block adjustment. Yet most modern matching pipelines still treat matching largely as
Hongyang Zhang   +6 more
doaj   +1 more source

3D motion recovery via affine Epipolar geometry

open access: yes, 1995
Algorithms to perform point-based motion estimation under orthographic and scaled orthographic projection abound in the literature. A key limitation of many existing algorithms is that they operate on the minimum amount of data required, often requiring ...
Brady, Michael   +2 more
core   +1 more source

Weak-Texture Seafloor and Land Image Matching Using Homography-Based Motion Statistics with Epipolar Geometry

open access: yesRemote Sensing
The matching of remote sensing images is a critical and necessary procedure that directly impacts the correctness and accuracy of underwater topography, change detection, digital elevation model (DEM) generation, and object detection.
Yifu Chen   +6 more
doaj   +1 more source

3D ASPECTS OF 2D EPIPOLAR GEOMETRY

open access: yes, 2008
Relative orientation in a stereo pair (establishing 3D epipolar geometry) is generally described as a rigid body transformation, with one arbitrary translation component, between two formed bundles of rays.
George Karras   +2 more
core  

Correspondence and Segmentation of Multiple Rigid Motions via Epipolar Geometry

open access: yes, 1996
This paper presents a new approach to matching and segmenting multiple rigid motions using epipolar constraint. Epipolar geometry underlying the motion images are rst recovered, and the epipolar equations are used to reduce search for correspondence from
S. Tsuji, Gang Xu, Saburo Tsuji
core   +1 more source

Projective 3D-reconstruction of Uncalibrated Endoscopic Images

open access: yesActa Polytechnica, 2010
The most common medical diagnostic method for urinary bladder cancer is cystoscopy. This inspection of the bladder is performed by a rigid endoscope, which is usually guided close to the bladder wall.
P. Faltin, A. Behrens
doaj  

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