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Jian Sun

Researcher at Xi'an Jiaotong University

Publications -  394
Citations -  356427

Jian Sun is an academic researcher from Xi'an Jiaotong University. The author has contributed to research in topics: Computer science & Object detection. The author has an hindex of 109, co-authored 360 publications receiving 239387 citations. Previous affiliations of Jian Sun include French Institute for Research in Computer Science and Automation & Tsinghua University.

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Patent

Poisson matting for images

TL;DR: In this article, a trimap for an image that specifies a background region, a foreground region, and an unknown region for the image wherein a boundary exists between the foreground region and the unknown region and wherein another boundary existed between the unknown regions and the background region is solved by solving a set of Poisson equations having boundary conditions for the two boundaries to provide a matte that distinguishes a foreground regions from a background regions in the unknown Region.
Proceedings ArticleDOI

A multi-sample, multi-tree approach to bag-of-words image representation for image retrieval

TL;DR: By encoding more information of the original image feature, this approach generates a much more discriminative visual word codebook that is also efficient in terms of both computation and space consumption, without losing the original repeatability of the visual features.
Proceedings ArticleDOI

Sparse-Coded Features for Image Retrieval.

TL;DR: This paper illustrates that Fisher Vector, VLAD and BOF can be uniformly derived in two steps: i Encoding – separately map each local descriptor into a code, and ii Pooling – aggregate all codes from one image into a single vector.
Patent

Image semantic segmentation

TL;DR: In this article, the semantic segmentation of the image is done by determining a semantic category for each pixel in the image at least in part based on the resulting segment features, which are extracted from the convolutional feature maps.