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Journal ArticleDOI

Semi-autonomous evolution of object models for adaptive object recognition

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TLDR
The paper presents both an outline of the iterative evolution methodology and the investigation of an incremental model generalization approach using the example of a texture recognition problem.
Abstract
The paper presents a semi-autonomous model evolution approach to object recognition under variable perceptual conditions. The approach assumes that (i) the system has to recognize objects on separate images of a sequence, and (ii) the images demonstrate the variability of conditions under which objects are perceived (gradual change in resolution, lighting, positioning). The adaptation of object models is executed due to perceived, over a sequence of images, variabilities of object characteristics. This adaptation involves (i) the application of learned models to the next image, (ii) the monitoring of recognition effectiveness of the models, and (iii) an activation of learning processes if needed (i.e., when the recognition effectiveness of the models decreases). Model adaptation (evolution) integrates recognition processes of computer vision with incremental knowledge acquisition processes of machine learning in a closed loop. The paper presents both an outline of the iterative evolution methodology and the investigation of an incremental model generalization approach using the example of a texture recognition problem. Experiments were run in a semi-autonomous mode where a teacher secured soundness behavior of the evolution system. The experiments are compared for three system configurations: (i) a one-level control structure, (ii) a two-level control structure, and (iii) a two-level control structure with data filtering. The obtained results are evaluated for system recognition effectiveness, recognition stability, and predictability of evolved models. >

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Citations
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Proceedings Article

Image segmentation

TL;DR: An axiomatic definition for the notion of "segmentation" in image processing is proposed, which is based on the idea of a maximal partition and a key theorem links segmentation with connection, on the one hand, and with connective criteria on the other one.
Journal ArticleDOI

Object extraction and revision by image analysis using existing geodata and knowledge: current status and steps towards operational systems☆

TL;DR: In spite of many remaining unsolved problems and need for further research and development, use of knowledge and semi-automation are the only viable alternatives towards development of useful object extraction systems, as some commercial systems on building extraction and 3D city modelling as well as advanced, practically oriented research have shown.
Journal ArticleDOI

Large-Scale Systems: Modeling and Control

TL;DR: Jamshidi provides a timely pedagogic discussion of this important field and, by examining past, present and potential future trends, gives scientists who are unfamiliar with these recent advances an opportunity to comprehend the subject through a balanced overview.
Book

Image Processing and Pattern Recognition: Fundamentals and Techniques

Frank Y. Shih
TL;DR: A Selected List of Books on Image Processing and Computer Vision from Year 2000.
Journal ArticleDOI

A top-down region dividing approach for image segmentation

TL;DR: A novel top-down region dividing based approach is developed for image segmentation, which combines the advantages of both histogram-based and region-based approaches, and Experimental results show that the algorithm can efficiently perform image segmentsation without distorting the spatial structure of an image.
References
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A comparative study of texture measures for terrain classification.

J. S. Weszka, +1 more
TL;DR: Three standard approaches to automatic texture classification make use of features based on the Fourier power spectrum, on second-order gray level statistics, and on first-order statistics of gray level differences, respectively; it was found that the Fouriers generally performed more poorly, while the other feature sets all performned comparably.
Journal ArticleDOI

Markov Random Field Texture Models

TL;DR: The power of the binomial model to produce blurry, sharp, line-like, and blob-like textures is demonstrated and the synthetic microtextures closely resembled their real counterparts, while the regular and inhomogeneous textures did not.
Journal ArticleDOI

A Comparative Study of Texture Measures for Terrain Classification

TL;DR: In this paper, three standard approaches to automatic texture classification make use of features based on the Fourier power spectrum, on second-order gray level statistics, and on first-order statistics of gray level differences, respectively.
Journal ArticleDOI

A theory and methodology of inductive learning

TL;DR: The authors view inductive learning as a heuristic search through a space of symbolic descriptions, generated by an application of various inference rules to the initial observational statements, including generalization rules, which perform generalizing transformations on descriptions, and conventional truth-preserving deductive rules.
Journal ArticleDOI

Modeling and Segmentation of Noisy and Textured Images Using Gibbs Random Fields

TL;DR: This paper presents random field models for noisy and textured image data based upon a hierarchy of Gibbs distributions, and presents dynamic programming based segmentation algorithms for chaotic images, considering a statistical maximum a posteriori (MAP) criterion.
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