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Augmenting crowd-sourced 3D reconstructions using semantic detections
(2018)2018 IEEE/CVF Conference on Computer Vision and Pattern RecognitionImage-based 3D reconstruction for Internet photo collections has become a robust technology to produce impressive virtual representations of real-world scenes. However, several fundamental challenges remain for Structure-from-Motion (SfM) pipelines, namely: the placement and reconstruction of transient objects only observed in single views, estimating the absolute scale of the scene, and (suprisingly often) recovering ground surfaces in ...Conference Paper -
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3D Reconstruction of architectural scenes from uncalibrated video sequences
(2009)International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesIn this paper we present a system for three-dimensional reconstruction of architectural scenes from uncalibrated videos. These videosmight be recorded using hand-held cameras, downloaded from the internet or taken from archival sources. Because we do not requireprior knowledge of the camera’s internal parameters such as focal length, center of projection, and radial distortion we can deal withvideos from uncontrolled sources. We present ...Conference Paper -
Detecting Large Repetitive Structures with Salient Boundaries
(2010)Lecture Notes in Computer Science ~ Computer vision - ECCV 2010Conference Paper -
Visual Word based Location Recognition in 3D models using Distance Augmented Weighting
(2008)Fourth International Symposium on 3D Data Processing, Visualization and Transmission : ProceedingsConference Paper -
Image localization in satellite imagery with feature-based indexing
(2008)International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ~ XXIst ISPRS Congress: Technical Commission IIIThis paper presents a method to index ortho-map databases with image-based features and search a map database for regions that matchquery images of unknown scales and rotations. The proposed method uses image-based features to index the 2D map locations. Imagefeature extractors normally generate features with location, orientation, shape, and a descriptor for normalized image patch. In a mapdatabase, the geographical location, orientation ...Conference Paper -
Real-Time Video-Based Reconstruction of Urban Environments
(2007)International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesWe present an approach for automatic 3D reconstruction of outdoor scenes using computer vision techniques. Our system collectsvideo, GPS and INS data which are processed in real-time to produce geo-registered, detailed 3D models that represent the geometryand appearance of the world. These models are generated without manual measurements or markers in the scene and can be used forvisualization from arbitrary viewpoints, documentation and ...Conference Paper -
Structure from Motion via a Two-Stage Pipeline of Extended Kalman Filters
(2007)British Machine Vision Conference 2007Conference Paper -
A new minimal solution to the relative pose of a calibrated stereo camera with small field of view overlap
(2009)2009 IEEE 12th International Conference on Computer VisionConference Paper -
Differential Camera Tracking through Linearizing the Local Appearance Manifold
(2007)Computer Vision and Pattern Recognition (CVPR '07)Conference Paper