Peiqi Chai

EM algorithms of Gaussian mixture model and hidden Markov model

Guorong Xuan, Wei Zhang, Peiqi Chai · 2002 · 190 citations

Em Algorithm, Statistical Signal Processing, Mixture Distribution +11

Image Steganalysis Based on Moments of Characteristic Functions Using Wavelet Decomposition, Prediction-Error Image, and Neural Network

Y.Q. Shi, Guorong Xuan, Dekun Zou et al. · 2005 · 151 citations

Data Hiding, Image Analysis, Engineering +13

Bhattacharyya distance feature selection

Guorong Xuan, Peiqi Chai, WU Min-hui · 1996 · 85 citations

Image Analysis, Engineering, Data Science +14

Lossless Data Hiding Using Integer Wavelet Transform and Threshold Embedding Technique

Guorong Xuan, Yun Q. Shi, Chengyun Yang et al. · 2005 · 80 citations

Digital Watermarking, Data Hiding, Image Analysis +11

Effective steganalysis based on statistical moments of wavelet characteristic function

Yun Q. Shi, Guorong Xuan, Chengyun Yang et al. · 2005 · 60 citations

Data Hiding, Image Analysis, Engineering +12