J
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.
Papers
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Patent
Background removal in a live video
TL;DR: In this paper, a system refines a segmentation boundary between the foreground and the background image by attenuating background contrast while preserving contrast of the segmentation boundaries itself, providing an accurate background cut of live video in real time.
Patent
Digital cameras with luminance correction
TL;DR: In this article, techniques to improve quality of images that may be blurred or underexposed (e.g., because of camera shake, taken in dim lighting conditions, or taken of high action scenes) are described.
Proceedings ArticleDOI
Bidirectional tracking using trajectory segment analysis
TL;DR: A novel approach to keyframe-based tracking, called bi-directional tracking, given two object templates in the beginning and ending keyframes, which outputs the MAP solution of the whole state sequence of the target object in the Bayesian framework.
Proceedings ArticleDOI
Joint Inverted Indexing
TL;DR: This paper presents a method that jointly optimizes all code words in all quantizers and creates them jointly, which is faster and more accurate than a recent state-of-the-art inverted indexing method.
Patent
Interactive image matting
Jian Sun,Kaiming He,Jiangyu Liu +2 more
TL;DR: In this article, a user interface enables interactive image matting to be performed on an image and provides results including an alpha matte as feedback in real-time, in which the user can interactively refine the alpha matte to obtain a satisfactory result.