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检索条件"主题词=Image processing algorithms and systems"
335 条 记 录,以下是121-130 订阅
排序:
image segmentation in compressed domain
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JOURNAL OF ELECTRONIC IMAGING 2003年 第3期12卷 390-397页
作者: Feng, GC Jiang, JM Univ Bradford Sch Informat Bradford BD7 1DP W Yorkshire England Zhongshan Univ Fac Math & Comp Sci Guangzhou Peoples R China
We propose a direct image segmentation algorithm in the JPEG compressed domain. The algorithm features extracting statistical parameters from direct cosine transform (DCT) coefficients without its inverse transform, a... 详细信息
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Segmentation of breast tumors in mammograms using fuzzy sets
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JOURNAL OF ELECTRONIC IMAGING 2003年 第3期12卷 369-378页
作者: Guliato, D Rangayyan, RM Carnielli, WA Zuffo, JA Desautels, JEL Univ Fed Uberlandia Dept Informat Lab Bioinformat BR-38400089 Uberlandia MG Brazil Univ Calgary Dept Elect & Comp Engn Calgary AB T2N 1N4 Canada Univ Calgary Dept Radiol Calgary AB T2N 1N4 Canada Univ Estadual Campinas Ctr Log & Epistemol BR-13081970 Campinas SP Brazil Univ Sao Paulo Escola Politecn Lab Sistemas Integraveis Div Sistenas Digitais BR-05508900 Sao Paulo SP Brazil Screen Test Alberta Calgary AB T2P 3G9 Canada
Defining criteria to determine precisely the boundaries of masses in mammograms is a difficult task. The problem is compounded by the fact that most malignant tumors possess fuzzy boundaries with a slow and extended t... 详细信息
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Contextual algorithm for color quantization
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JOURNAL OF ELECTRONIC IMAGING 2003年 第3期12卷 442-447页
作者: Yu, MP Lo, KC Hong Kong Polytech Univ Dept Elect & Informat Engn Kowloon Hong Kong Peoples R China
We propose a heuristic approach to color quantize images with contextual information taken into consideration. The idea is to locate the regions of an image having the greatest need for colors, and allocate more quant... 详细信息
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Robust and efficient image segmentation approaches using Markov random field models
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JOURNAL OF ELECTRONIC IMAGING 2003年 第1期12卷 50-58页
作者: Nasab, NM Analoui, M Delp, EJ Indiana Univ Sch Dent Indianapolis IN 46202 USA Purdue Univ Dept Biomed Engn W Lafayette IN 47907 USA Pfizer Inc Global Res & Dev Groton CT 06340 USA
Modified implementations of simulated annealing (SA) for image segmentation are proposed and evaluated. The segmentation procedure is based on a Markov random field (MRF) model for describing regions within an image. ... 详细信息
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Geometrical image compression with bandelets
Geometrical image compression with bandelets
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Conference on Visual Communications and image processing 2003
作者: Le Pennec, E Mallat, S Ecole Polytech CMAP F-91128 Palaiseau France
This paper introduces a new class of bases, called bandelet bases, which decompose the image along multiscale vectors that are elongated in the direction of a geometric flow. This geometric flow indicates the directio... 详细信息
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Feature extraction and segmentation in medical images by statistical optilmization and point operation approaches
Feature extraction and segmentation in medical images by sta...
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Medical Imaging 2003 Conference
作者: Yang, SY King, P Corona, E Wilson, M Aydin, K Mitra, S Soliz, P Nutter, B Kwon, YH Texas Tech Univ Lubbock TX 79409 USA
Feature extraction is a critical preprocessing step, which influences the outcome of the entire process of developing significant metrics for medical image evaluation. The. purpose of this paper is firstly to compare ... 详细信息
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Automatic discrimination of text images
Automatic discrimination of text images
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Conference on Sensors and Camera systems for Scientific, Industrial, and Digital Photography Applications IV
作者: Alessi, NG Battiato, S Gallo, G Mancuso, M Stanco, F Univ Catania DMI I-95125 Catania Italy
This paper introduces a method for the automatic discrimination of digital images based on their semantic content. The proposed system allows to detect if a digital image contains or not a text. This is realized by a ... 详细信息
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Document structure analysis algorithms: A literature survey
Document structure analysis algorithms: A literature survey
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Conference on Document Recognition and Retrieval X
作者: Mao, S Rosenfeld, A Kanungo, T Univ Maryland Ctr Automat Res College Pk MD 20742 USA
Document structure analysis can be regarded as a syntactic analysis problem. The order and containment relations among the physical or logical components of a document page can be described by an ordered tree structur... 详细信息
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K-Means Re-Clustering - algorithmic options with quantifiable performance comparisons
K-Means Re-Clustering - algorithmic options with quantifiabl...
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Conference on Optical Engineering at the Lawrence-Livermore-National-Laboratory
作者: Meyer, A Paglieroni, D Astaneh, C Lawrence Livermore Natl Lab Livermore CA 94550 USA
This paper presents various architectural options for implementing a K-Means Re-Clustering algorithm suitable for unsupervised segmentation of hyperspectral images. Performance metrics are developed based upon quantit... 详细信息
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Quality analysis of blue-veined cheeses by MRI. A preliminary study.
Quality analysis of blue-veined cheeses by MRI. A preliminar...
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6th International Conference on Quality Control by Artificial Vision
作者: Onea, A Collewet, G Fernandez, C Vertan, C Richard, N Mariette, F Irstea F-35000 Rennes France
This paper describes a preliminary study aimed at improving the quality of soft-blue veined cheeses by the use of magnetic resonance images analysis. MRI measurements were performed on thirty-two samples from two diff... 详细信息
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