Samsung Electronics Co., Ltd.

Other

University of California

Youngsik Huh

Yang-lim Choi

Bangalore S Manjunath

Hoyoung Lee

Peng Wu

Dusik Park

Changyeong Kim

Hyunwook Ok

Shiv Chandrasekaran

A method and apparatus for adjusting a color of an image, the apparatus includes a unit setting at least one adjustment region shaped as an ellipse in a color space; and a unit converting colors of pixels included in the adjustment region to other colors based on a variable set.

Method and apparatus for adjusting color of image

An adaptive search method in feature vector space which can quickly search the feature vector space indexed based on approximation for a feature vector having features similar to a query vector according to a varying distance measurement is provided. The adaptive search method includes the steps of (a) performing a similarity measurement on a given query vector within the feature vector space, and (b) applying search conditions limited by the result of the similar measurement obtained in the step (a) and performing a changed similarity measurement on the given query vector. According to the adaptive search method, the number of candidate approximation regions is reduced during a varying distance measurement such as an on-line retrieval, which improves the search speed.

Adaptive search method in feature vector space

A method of indexing a high-dimensional vector space, along with a method of quickly retrieving a feature vector having features similar to a query vector from the vector space indexed by the indexing method, are provided. The method of indexing a feature vector space includes the steps of (a) partitioning the feature vector space into a plurality of approximation regions; (b) selecting an arbitrary approximation region to determine whether the selected approximation region is heavily or sparsely distributed; and (c) if the approximation region is determined to be sparsely distributed, indexing the corresponding approximation region as one special node belonging to a child node of the tree data structure, together with any other sparsely distributed approximation region spaced apart by a distance less than a predetermined distance.

Method of indexing and searching feature vector space

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Suwon, South Korea

Youngsik Huh