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Author: Bernard Lyman
Publisher:
ISBN:
Category : Visual perception
Languages : en
Pages : 138
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Book Description
The literature survey was undertaken to explore information on the nature of and conditions for effective visual perception at low light levels. From the survey, 407 reports or studies were selected for inclusion in the annotated bibliography. With a few exceptions, the material falls within the areas of detection, identification, and localization. Many laboratory studies are included which could undergo appropriate modification for repetition in natural settings at low light levels. In each annotation the purpose and the results or conclusions of the study are stated; method and procedure are indicated only briefly. (Author).
Author: Bernard Lyman
Publisher:
ISBN:
Category : Visual perception
Languages : en
Pages : 138
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Book Description
The literature survey was undertaken to explore information on the nature of and conditions for effective visual perception at low light levels. From the survey, 407 reports or studies were selected for inclusion in the annotated bibliography. With a few exceptions, the material falls within the areas of detection, identification, and localization. Many laboratory studies are included which could undergo appropriate modification for repetition in natural settings at low light levels. In each annotation the purpose and the results or conclusions of the study are stated; method and procedure are indicated only briefly. (Author).
Author: Amir R. Zamir
Publisher: Springer
ISBN: 3319257811
Category : Computers
Languages : en
Pages : 353
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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: Human Resources Research Organization
Publisher:
ISBN:
Category :
Languages : en
Pages : 512
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Book Description
Author: David Fleet
Publisher: Springer
ISBN: 331910599X
Category : Computers
Languages : en
Pages : 855
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Book Description
The seven-volume set comprising LNCS volumes 8689-8695 constitutes the refereed proceedings of the 13th European Conference on Computer Vision, ECCV 2014, held in Zurich, Switzerland, in September 2014. The 363 revised papers presented were carefully reviewed and selected from 1444 submissions. The papers are organized in topical sections on tracking and activity recognition; recognition; learning and inference; structure from motion and feature matching; computational photography and low-level vision; vision; segmentation and saliency; context and 3D scenes; motion and 3D scene analysis; and poster sessions.
Author: Fan Yang
Publisher:
ISBN:
Category : Computer engineering
Languages : en
Pages : 104
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Book Description
Visual infrastructure, which consists of connected visual sensors, has been extensively deployed and is vital for various important applications, such as surveillance, tracking, and monitoring. However, there are still many problems regarding visual sensor deployment for optimal coverage and visual data processing technology. Challenges remain with the sectoral visual sensing model, the complexity of image processing, and these sensors' vulnerability to noisy environments. Solving these problems will improve the performance of visual infrastructure, which increases accuracy and efficiency for these applications. This dissertation focuses on visual-infrastructure-related technologies. In particular, we study the following problems. First, we study visual infrastructure deployment. We propose local face-view barrier coverage (L-Faceview), a novel concept that achieves statistical barrier coverage in visual sensor networks leveraging mobile objects' trajectory information. We derive a rigorous probability bound for this coverage via a feasible deployment pattern. The proposed detection probability bound and deployment pattern can guide practical camera sensor deployments in visual infrastructure with limited budgets. Second, we study visual-infrastructure-based object recognition. We design and implement R-Focus, a platform with visual sensors that detects and verifies a person holding a mobile phone nearby with the assistance of electronic sensors. R-Focus performs visual and electronic data collection and rotates based on the collected data. It uses the electronic identity information to gather visual identity information. R-Focus can serve as a component of visual infrastructure that performs object identity recognition. Third, we study visual-infrastructure-based object localization. We design Flash-Loc, an accurate indoor localization system leveraging flashes of light to localize objects in areas with deployed visual infrastructure. An object emits a sequence of flashes that uniquely "represent" the object from the cameras' view. Flash-Loc develops three key mechanisms that distinguish objects while avoiding long irritating flashes: adaptive-length flash coding, pulse-width-modulation-based flash generation, and image-subtraction-based flash localization. Further, we design a system in which Flash-Loc cooperates with fingerprinting and dead reckoning for continuous localization. We implement Flash-Loc on commercial off-the-shelf (COTS) equipment. Our real-world experiments show that Flash-Loc achieves accurate indoor localization by itself and in cooperation with other localization technologies. In particular, Flash-Loc can localize an object 45m away from the camera with sub-meter accuracy. This dissertation presents all of the above techniques in detail, along with the respective system implementation and solutions to practical challenges.
Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 40
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Book Description
Author: David Pérez-González
Publisher: Frontiers Media SA
ISBN: 2889762181
Category : Science
Languages : en
Pages : 285
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Book Description
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1272
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572
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Book Description
Author:
Publisher:
ISBN:
Category : Aviation medicine
Languages : en
Pages : 674
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Book Description
