Computer-aided Evaluation of Reconnaissance Image Compression Schemes Using an On-line Interactive Facility PDF Download
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Author: John C. Mott-Smith
Publisher:
ISBN:
Category : Aerial photographs
Languages : en
Pages : 50
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Book Description
The desire to transmit high-quality, single-frame images such as reconnaissance photographs places a severe strain on narrow-band communications channels. The problem is severe enough to warrant use of complex and expensive compression methods, providing they really work. The authors propose a method of evaluating compression algorithms applied to pictures, and apply it to several well-known techniques already having one or more hardware implementations. The importance of proper data management for pictorial communication is illustrated, and by implication are shown to be much more important than the data compression algorithms. Relevant to the data management proposals, some methods of improving the cosmetic quality of sparsely sampled images are shown. An interactive computer system (AFCRL's Image Analysis Facility) was used in the study. Special features of this facility are operator control of the entire process from image acquisition through final display, interactive processing, and the ready ability to explore new ideas in some depth. (Author).
Author: John C. Mott-Smith
Publisher:
ISBN:
Category : Aerial photographs
Languages : en
Pages : 50
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Book Description
The desire to transmit high-quality, single-frame images such as reconnaissance photographs places a severe strain on narrow-band communications channels. The problem is severe enough to warrant use of complex and expensive compression methods, providing they really work. The authors propose a method of evaluating compression algorithms applied to pictures, and apply it to several well-known techniques already having one or more hardware implementations. The importance of proper data management for pictorial communication is illustrated, and by implication are shown to be much more important than the data compression algorithms. Relevant to the data management proposals, some methods of improving the cosmetic quality of sparsely sampled images are shown. An interactive computer system (AFCRL's Image Analysis Facility) was used in the study. Special features of this facility are operator control of the entire process from image acquisition through final display, interactive processing, and the ready ability to explore new ideas in some depth. (Author).
Author: Arthur P. Ginsburg
Publisher:
ISBN:
Category : Computer input-output equipment
Languages : en
Pages : 130
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Book Description
The Image Analysis Facility (IAF) is a special-purpose digital computer system incorporating custom hardware and software that has been developing at the AFCRL Data Sciences Laboratory for over 10 years. The IAF is designed to provide highly flexible, on-line interactive processing of pictorial information that includes capabilities that are unique to a non-batch computer system. The IAF system hardware and software sections are broken down functionally and are fully discussed. Over 40 photographs illustrating selected program effects on pictures are presented. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 976
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Sing T. Bow
Publisher: CRC Press
ISBN: 9780203903896
Category : Technology & Engineering
Languages : en
Pages : 736
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Book Description
Describing non-parametric and parametric theoretic classification and the training of discriminant functions, this second edition includes new and expanded sections on neural networks, Fisher's discriminant, wavelet transform, and the method of principal components. It contains discussions on dimensionality reduction and feature selection; novel computer system architectures; proven algorithms for solutions to common roadblocks in data processing; computing models including the Hamming net, the Kohonen self-organizing map, and the Hopfield net; detailed appendices with data sets illustrating key concepts in the text; and more.
Author: Air Force Cambridge Research Laboratories (U.S.)
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 206
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Book Description
This bibliography lists all AFCRL in-house reports, journal articles, and contractor reports issued from 1 April to 30 June 1972. Abstracts are included.
Author: Sing-Tze Bow
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 344
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Book Description
Author:
Publisher:
ISBN:
Category : Astronautics in earth sciences
Languages : en
Pages : 758
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Book Description
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Avionics Panel
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 368
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Book Description
Author: E.M.I. Electronics Ltd
Publisher:
ISBN:
Category : Geography
Languages : en
Pages : 446
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Book Description
Author: North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Technical Information Panel
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
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Book Description
