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Hui Zhang

Researcher at Washington University in St. Louis

Publications -  11
Citations -  1688

Hui Zhang is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Image segmentation & Segmentation-based object categorization. The author has an hindex of 9, co-authored 10 publications receiving 1604 citations. Previous affiliations of Hui Zhang include University of Washington.

Papers
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Journal ArticleDOI

Image segmentation evaluation: A survey of unsupervised methods

TL;DR: An extensive evaluation of the unsupervised objective evaluation methods that have been proposed in the literature are presented and the advantages and shortcomings of the underlying design mechanisms in these methods are discussed and analyzed.
Journal ArticleDOI

Localized Content-Based Image Retrieval

TL;DR: A localized CBIR system is presented that uses labeled images in conjunction with a multiple-instance learning algorithm to first identify the desired object and weight the features accordingly, and then to rank images in the database using a similarity measure that is based upon only the relevant portions of the image.
Proceedings ArticleDOI

An entropy-based objective evaluation method for image segmentation

TL;DR: A novel objective segmentation evaluation method based on information theory that uses entropy as the basis for measuring the uniformity of pixel characteristics (luminance is used in this paper) within a segmentation region.
Proceedings ArticleDOI

Localized content based image retrieval

TL;DR: A localized CBIR system that uses labeled images in conjunction with a multiple-instance learning algorithm to first identify the desired object and weight the features accordingly, and then to rank images in the database using a similarity measure that is based upon only the relevant portions of the image.
Proceedings ArticleDOI

A co-evaluation framework for improving segmentation evaluation

TL;DR: A co-evaluation framework is proposed, in which different effectiveness measures judge the performance of the segmentation in different ways, and their measures are combined by using a machine learning approach which coalesces the results.