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17 results on '"Jia, Huading"'

6. A Fast and Accurate Progressive Algorithm for Training Transductive SVMs

Author

Wang, Lei, Jia, Huading, Sun, Shixin, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Liu, Derong, editor, Fei, Shumin, editor, Hou, Zengguang, editor, Zhang, Huaguang, editor, and Sun, Changyin, editor

Published
2007
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11. A new binarization algorithm based on maximum gradient of histogram

Author

Jia Huading, Luo Binjie, and Wang Li

Subjects
Discrete wavelet transform, Image fusion, business.industry, Stationary wavelet transform, Multiresolution analysis, Second-generation wavelet transform, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Wavelet transform, Pattern recognition, Wavelet packet decomposition, Wavelet, Computer Science::Computer Vision and Pattern Recognition, Computer vision, Artificial intelligence, business, Mathematics
Abstract

A multiresolution image fusion method based on principle component analysis (PCA) is presented. A pairs of registered images are decomposed and of multi-resolution representation by wavelet transform, adaptive fusion weight value of the low frequency wavelet coefficients are resolved using PCA, the high frequency wavelet coefficients are fused by local wavelet energy maximum, then fused images is formed by inverse transforming and combining all wavelet coefficients, the proposed algorithm should keep the information of global structure and significant features from the input images. The experimental results show the proposed procedure work well in the precise feature, visibility and structure information of fused image.

Published
2007

12. Application and numerical implementation of fractional calculus to digital watermark

Author

Jia Huading and Pu Yifei

Subjects
Image coding, Theoretical computer science, Phrase, Robustness (computer science), Computer Science::Multimedia, Algorithm, Digital watermarking, Computer Science::Cryptography and Security, Fractional calculus, Mathematics
Abstract

The paper mainly concerns and studies the application and implementation of fractional calculus to digital watermark algorithm. In the first, it discusses how to implement fractional calculus pseudo-random sequence by the sampling deviation of fractional calculus sinusoidal signal. In addition, it puts forward a fractional calculus based digital watermark algorithm, the security of which depends on the unknown of fractional orders and initial phrases. In the last, it proves the imperceptibility and robustness of this algorithm by simulation experiment, and shows that whether the embedded digital watermark sequence is extracted completely depends on the awareness of fractional order and initial phrase

Published
2006

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