Undergraduate Student Stage
- Jan.2005-May 2005, Video Watermarking Based on MPEG-2 Compression Domain
- Jun.2003-Jul. 2003, The Embedding System Product Competition of Xidian University
- Mar.2002-Jun.2002, The Xing-huo Cup of Science Product Competition of Xidian University
Graduate Student Stage
- Sep. 2006-Jan.2007, Undergraduate Student Teaching Assistant at Xidian University, for the undergraduate class on Linear Algebra, with Assistant Prof. Jie Li.
- Oct.2006-Apr.2008, Image & Video Watermarking Research Group (vice-leader of the group)
- Designed and implemented a video watermarking algorithm using perceptual masking, which derived from 3-D CWT coefficients of video sequence.
- Constructed video watermarking schemes in ICA-DWT domain, using ICA to extract the independent components of characterized video matrix.
- Further optimized the previous algorithm by combining the wiener filtering to embed the watermark into characterized video matrix.
- Took part in the core algorithms programming of the Vid-Mark V1.0 software, which has registered as a copyright by the National Copyright Administration.
- Our team's work was reviewed to evaluate the Key Project of MOE entitled "Multi-resolution Spatio-temporal Embedding and Blind Detection Algorithms"( entrusted by the Division of Science and Technology, Ministry of Education ,June 1, 2007).
- Feb.2007-Apr.2007 Machine Learning Approach for Visual Object Detection
- Finished a video object tracking algorithm, adapted located the position of moving object. This algorithm is based on the particle filtering algorithm.
- Proposed and tried out a video watermarking algorithm using particle filtering to select the embedding area and adaptive embedded with a HVS masking.
- Nov.2006-Jan.2007 Video Retrieval Based on Content
- Conceived an algorithm to extract the video character parameter, which was defined by uniting the Gaussian distributions of three sub-band of 3-D DWT, the results of retrieving prove the effectiveness of the algorithm.
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