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Author: Amir R. Zamir Publisher: Springer ISBN: 3319257811 Category : Computers Languages : en Pages : 353
Book Description
This timely and authoritative volume explores the bidirectional relationship between images and locations. The text presents a comprehensive review of the state of the art in large-scale visual geo-localization, and discusses the emerging trends in this area. Valuable insights are supplied by a pre-eminent selection of experts in the field, into a varied range of real-world applications of geo-localization. Topics and features: discusses the latest methods to exploit internet-scale image databases for devising geographically rich features and geo-localizing query images at different scales; investigates geo-localization techniques that are built upon high-level and semantic cues; describes methods that perform precise localization by geometrically aligning the query image against a 3D model; reviews techniques that accomplish image understanding assisted by the geo-location, as well as several approaches for geo-localization under practical, real-world settings.
Author: Amir R. Zamir Publisher: Springer ISBN: 3319257811 Category : Computers Languages : en Pages : 353
Book Description
This timely and authoritative volume explores the bidirectional relationship between images and locations. The text presents a comprehensive review of the state of the art in large-scale visual geo-localization, and discusses the emerging trends in this area. Valuable insights are supplied by a pre-eminent selection of experts in the field, into a varied range of real-world applications of geo-localization. Topics and features: discusses the latest methods to exploit internet-scale image databases for devising geographically rich features and geo-localizing query images at different scales; investigates geo-localization techniques that are built upon high-level and semantic cues; describes methods that perform precise localization by geometrically aligning the query image against a 3D model; reviews techniques that accomplish image understanding assisted by the geo-location, as well as several approaches for geo-localization under practical, real-world settings.
Author: Amir Roshan Zamir Publisher: ISBN: Category : Languages : en Pages : 143
Book Description
Geo-localization is the problem of discovering the location where an image or video was captured. Recently, large scale geo-localization methods which are devised for ground-level imagery and employ techniques similar to image matching have attracted much interest. In these methods, given a reference dataset composed of geo-tagged images, the problem is to estimate the geo-location of a query by finding its matching reference images. In this dissertation, we address three questions central to geo-spatial analysis of ground-level imagery: 1) How to geo-localize images and videos captured at unknown locations? 2) How to refine the geo-location of already geo-tagged data? 3) How to utilize the extracted geo-tags? We present a new framework for geo-locating an image utilizing a novel multiple nearest neighbor feature matching method using Generalized Minimum Clique Graphs (GMCP). First, we extract local features (e.g., SIFT) from the query image and retrieve a number of nearest neighbors for each query feature from the reference data set. Next, we apply our GMCP-based feature matching to select a single nearest neighbor for each query feature such that all matches are globally consistent. Our approach to feature matching is based on the proposition that the first nearest neighbors are not necessarily the best choices for finding correspondences in image matching. Therefore, the proposed method considers multiple reference nearest neighbors as potential matches and selects the correct ones by enforcing the consistency among their global features (e.g., GIST) using GMCP. Our evaluations using a new data set of 102k Street View images shows the proposed method outperforms the state-of-the-art by 10 percent.
Author: Vittorio Ferrari Publisher: Springer ISBN: 3030012581 Category : Computers Languages : en Pages : 785
Book Description
The sixteen-volume set comprising the LNCS volumes 11205-11220 constitutes the refereed proceedings of the 15th European Conference on Computer Vision, ECCV 2018, held in Munich, Germany, in September 2018.The 776 revised papers presented were carefully reviewed and selected from 2439 submissions. The papers are organized in topical sections on learning for vision; computational photography; human analysis; human sensing; stereo and reconstruction; optimization; matching and recognition; video attention; and poster sessions.
Author: Brandon Thayne Fetroe Publisher: ISBN: Category : Languages : en Pages :
Book Description
Locality sensitive hashing (LSH) of skyline features is used to expedite large-scale visual geo-localization in mountainous terrain. For queries with 60 degree FOV, LSH provides nearly the same localization accuracy as a state of the art reverse index method, but 10 times faster. LSH also provides approximately 25% better localization accuracy than a state of the art reverse index method pruned to give the same query speed. When tested on 196 photos from Baatz's CH1 data set LSH again matched or exceeded performance of the reverse index for queries with FOV > 30 degrees but was 40x faster than the full index, and was simultaneously 3x faster than an index pruned to contain less than 30% of the features. LSH and reverse index databases of skyline contourlets based on Baatz's method were built from rendered cubemaps of the ASTER GDEM. The coarse DEM resolution, small 2.5 degree feature width, and FOV-dependent database led to modest localization success rate of no more than 17% for any FOV bin, yet the relative accuracy of LSH vs. index-based methods clearly supports the claims of superior search speed with adjustable loss of accuracy compared to index pruning. Three open source tools are also presented, written in C++. Skybox Generator allows accurate, efficient rendering of images from large-scale DEMs, removing a significant barrier to entry for research in geometric matching-based localization at large scales. IM2SKY can extract skyline contourlet feature descriptors from sky-segmented images, and can quickly process large files. SKYLSH converts feature files into minhash signatures, hashes these signatures into LSH databases with adjustable numbers of files per band, and can perform LSH search for any features that are 32-bits or less.
Author: George Bebis Publisher: Springer ISBN: 3642419399 Category : Computers Languages : en Pages : 793
Book Description
The two volume sets LNCS 8033 and 8034 constitutes the refereed proceedings of the 9th International Symposium on Visual Computing, ISVC 2013, held in Rethymnon, Crete, Greece, in July 2013. The 63 revised full papers and 35 poster papers presented together with 32 special track papers were carefully reviewed and selected from more than 220 submissions. The papers are organized in topical sections: Part I (LNCS 8033) comprises computational bioimaging; computer graphics; motion, tracking and recognition; segmentation; visualization; 3D mapping, modeling and surface reconstruction; feature extraction, matching and recognition; sparse methods for computer vision, graphics and medical imaging; face processing and recognition. Part II (LNCS 8034) comprises topics such as visualization; visual computing with multimodal data streams; visual computing in digital cultural heritage; intelligent environments: algorithms and applications; applications; virtual reality.
Author: Jaeyoung Choi Publisher: Springer ISBN: 3319098616 Category : Technology & Engineering Languages : en Pages : 199
Book Description
This book presents an overview of the field of multimodal location estimation. The authors' aim is to describe the research results in this field in a unified way. The book describes fundamental methods of acoustic, visual, textual, social graph, and metadata processing as well as multimodal integration methods used for location estimation. In addition, the book covers benchmark metrics and explores the limits of the technology based on a human baseline. The book also outlines privacy implications and discusses directions for future research in the area.
Author: Shai Avidan Publisher: Springer Nature ISBN: 3031200470 Category : Computers Languages : en Pages : 828
Book Description
The 39-volume set, comprising the LNCS books 13661 until 13699, constitutes the refereed proceedings of the 17th European Conference on Computer Vision, ECCV 2022, held in Tel Aviv, Israel, during October 23–27, 2022. The 1645 papers presented in these proceedings were carefully reviewed and selected from a total of 5804 submissions. The papers deal with topics such as computer vision; machine learning; deep neural networks; reinforcement learning; object recognition; image classification; image processing; object detection; semantic segmentation; human pose estimation; 3d reconstruction; stereo vision; computational photography; neural networks; image coding; image reconstruction; object recognition; motion estimation.
Author: Jaap Kamps Publisher: Springer Nature ISBN: 3031282388 Category : Computers Languages : en Pages : 735
Book Description
The three-volume set LNCS 13980, 13981 and 13982 constitutes the refereed proceedings of the 45th European Conference on IR Research, ECIR 2023, held in Dublin, Ireland, during April 2-6, 2023. The 65 full papers, 41 short papers, 19 demonstration papers, 12 reproducibility papers consortium papers, 7 tutorial papers, and 10 doctorial consortium papers were carefully reviewed and selected from 489 submissions. The book also contains, 8 workshop summaries and 13 CLEF Lab descriptions. The accepted papers cover the state of the art in information retrieval focusing on user aspects, system and foundational aspects, machine learning, applications, evaluation, new social and technical challenges, and other topics of direct or indirect relevance to search.
Author: B. Yan Publisher: IOS Press ISBN: 1614999899 Category : Computers Languages : en Pages : 170
Book Description
Geographic knowledge graphs can have an important role in delivering interoperability, accessibility and the demands of conceptualization in geographic information science (GIS). However, the massive amount of accompanying information and the enormous diversity of geographic knowledge graphs limits their applicability and hinders the widespread adoption of this useful structured knowledge. This book, Geographic Knowledge Graph Summarization, focuses on the ways in which geographic knowledge graphs can be digested and summarized. Such a summarization would relieve the burden of information overload for end users and reduce data storage, as well as speeding up queries and eliminating ‘noise’. The book introduces the general concept of geospatial inductive bias and explains the different ways in which this idea can be used in the summarization of geographic knowledge graphs. The book breaks up the task of summarization into separate but related components, and after an introduction and a brief overview of concepts and theories, Chapters 3, 4 and 5 explore hierarchical place type structure, multimedia leaf nodes, and general relation and entity components respectively. Chapter 6 presents a spatial knowledge map interface which illustrates the effectiveness of summarization. The book integrates top-down knowledge engineering and bottom-up knowledge learning methods, and will do much to promote awareness of this fascinating area and related issues.
Author: Andrew Fitzgibbon Publisher: Springer ISBN: 3642337090 Category : Computers Languages : en Pages : 909
Book Description
The seven-volume set comprising LNCS volumes 7572-7578 constitutes the refereed proceedings of the 12th European Conference on Computer Vision, ECCV 2012, held in Florence, Italy, in October 2012. The 408 revised papers presented were carefully reviewed and selected from 1437 submissions. The papers are organized in topical sections on geometry, 2D and 3D shapes, 3D reconstruction, visual recognition and classification, visual features and image matching, visual monitoring: action and activities, models, optimisation, learning, visual tracking and image registration, photometry: lighting and colour, and image segmentation.
Author: Amir R. Zamir
Author: Amir R. Zamir
Author: Amir Roshan Zamir
Author: Vittorio Ferrari
Author: Brandon Thayne Fetroe
Author: George Bebis
Author: Jaeyoung Choi
Author: Shai Avidan
Author: Jaap Kamps
Author: B. Yan
Author: Andrew Fitzgibbon