User profiles for Yongjian Hu

Yongjian Hu

Two Sigma
Verified email at ucr.edu
Cited by 239

DE-based reversible data hiding with improved overflow location map

Y Hu, HK Lee, J Li - IEEE Transactions on Circuits and Systems …, 2008 - ieeexplore.ieee.org
For difference-expansion (DE)-based reversible data hiding, the embedded bit-stream
mainly consists of two parts: one part that conveys the secret message and the other part that …

Wavelet domain adaptive visible watermarking

Y Hu, S Kwong - Electronics Letters, 2001 - search.proquest.com
Pixel based scaling of a watermark image is of paramount importance to make the degree
of marking applied variable according to the features of host images. In this study, a wavelet …

Difference expansion based reversible data hiding using two embedding directions

Y Hu, HK Lee, K Chen, J Li - IEEE Transactions on Multimedia, 2008 - ieeexplore.ieee.org
Current difference-expansion (DE) embedding techniques perform one layer embedding in
a difference image. They do not turn to the next difference image for another layer …

Can the 12-item General Health Questionnaire be used to measure positive mental health?

Y Hu, S Stewart-Brown, LIZ Twigg… - Psychological medicine, 2007 - cambridge.org
Background. Well-being is an important determinant of health and social outcomes. Measures
of positive mental health states are needed for population-based research. The 12-item …

[PDF][PDF] Global dynamic molecular profiling of stomatal lineage cell development by single-cell RNA sequencing

…, B Zhang, Y Hu, Y Sun, Y Shangguan, W Li, T Li, Y Hu… - Molecular Plant, 2020 - cell.com
The regulation of stomatal lineage cell development has been extensively investigated.
However, a comprehensive characterization of this biological process based on single-cell …

Learning meta pattern for face anti-spoofing

R Cai, Z Li, R Wan, H Li, Y Hu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Face Anti-Spoofing (FAS) is essential to secure face recognition systems and has been
extensively studied in recent years. Although deep neural networks (DNNs) for the FAS task …

Versatile yet lightweight record-and-replay for android

Y Hu, T Azim, I Neamtiu - Proceedings of the 2015 ACM SIGPLAN …, 2015 - dl.acm.org
Recording and replaying the execution of smartphone apps is useful in a variety of contexts,
from reproducing bugs to profiling and testing. Achieving effective record-and-replay is a …

Reversible visible watermarking and lossless recovery of original images

Y Hu, B Jeon - IEEE Transactions on Circuits and Systems for …, 2006 - ieeexplore.ieee.org
In this paper, we propose a reversible visible watermarking algorithm to satisfy a new
application scenario where the visible watermark serves as a tag or ownership identifier, but can …

An algorithm for removable visible watermarking

Y Hu, S Kwong, J Huang - … on Circuits and Systems for Video …, 2005 - ieeexplore.ieee.org
A visible watermark may convey ownership information that identifies the originator of image
and video. A potential application scenario for visible watermarks was proposed by IBM …

A graphical chain model for reciprocal relationships between women's gender role attitudes and labour force participation

A Berrington, Y Hu, PWF Smith… - Journal of the Royal …, 2008 - academic.oup.com
We use a graphical chain model to investigate the reciprocal relationships between changes
in women’s labour force participation following entry into parenthood and changes in …