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Improving clustering-based image seg...
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Zhang, Hui.
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Improving clustering-based image segmentation through learning.
紀錄類型:
書目-語言資料,印刷品 : Monograph/item
正題名/作者:
Improving clustering-based image segmentation through learning./
作者:
Zhang, Hui.
面頁冊數:
138 p.
附註:
Adviser: Sally Goldman.
Contained By:
Dissertation Abstracts International68-09B.
標題:
Computer Science. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3282458
ISBN:
9780549249832
Improving clustering-based image segmentation through learning.
Zhang, Hui.
Improving clustering-based image segmentation through learning.
- 138 p.
Adviser: Sally Goldman.
Thesis (Ph.D.)--Washington University in St. Louis, 2007.
Semantic image segmentation aims to partition an image into separate regions, which ideally correspond to different real-world objects. It is one of the most critical steps towards content analysis and image understanding. Image segmentation can be viewed as a clustering problem attempting to determine which pixels belong together. Although many different clustering techniques have been applied in the attempt to achieve a better segmentation method, most of them use only simple similarity measures such as the distance between image features. We give a justification that segmentation methods using only simple similarity measures are inherently biased. In this dissertation, we aim to improve clustering-based segmentation using evaluation measures, which incorporate prior knowledge about what segmentations are more preferred. We propose two machine learning-based ensemble evaluation techniques: Co-Evaluation and Meta-Evaluation, to improve evaluation accuracy. And we extend ensemble evaluation to the collective supervised clustering (CSC) framework, which enables a segmentation algorithm to use a set of similarity measures or evaluation measures collaboratively in the clustering process. By assigning different weights to different similarity/evaluation measures according to the characteristics of the measures and the content of the image to be segmented, better segmentation results can be achieved using CSC. Clustering-based segmentation methods using prior knowledge about object(s), either by giving object templates or by learning, are also discussed in this dissertation.
ISBN: 9780549249832Subjects--Topical Terms:
626642
Computer Science.
Improving clustering-based image segmentation through learning.
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Semantic image segmentation aims to partition an image into separate regions, which ideally correspond to different real-world objects. It is one of the most critical steps towards content analysis and image understanding. Image segmentation can be viewed as a clustering problem attempting to determine which pixels belong together. Although many different clustering techniques have been applied in the attempt to achieve a better segmentation method, most of them use only simple similarity measures such as the distance between image features. We give a justification that segmentation methods using only simple similarity measures are inherently biased. In this dissertation, we aim to improve clustering-based segmentation using evaluation measures, which incorporate prior knowledge about what segmentations are more preferred. We propose two machine learning-based ensemble evaluation techniques: Co-Evaluation and Meta-Evaluation, to improve evaluation accuracy. And we extend ensemble evaluation to the collective supervised clustering (CSC) framework, which enables a segmentation algorithm to use a set of similarity measures or evaluation measures collaboratively in the clustering process. By assigning different weights to different similarity/evaluation measures according to the characteristics of the measures and the content of the image to be segmented, better segmentation results can be achieved using CSC. Clustering-based segmentation methods using prior knowledge about object(s), either by giving object templates or by learning, are also discussed in this dissertation.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3282458
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