Hidden Markov Tree Modeling of Complex Wavelet Transforms
| dc.citation.bibtexName | inproceedings | en_US |
| dc.citation.conferenceName | IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) | en_US |
| dc.citation.firstpage | 133 | |
| dc.citation.lastpage | 136 | |
| dc.citation.location | Istanbul, Turkey | en_US |
| dc.citation.volumeNumber | 1 | en_US |
| dc.contributor.author | Choi, Hyeokho | en_US |
| dc.contributor.author | Romberg, Justin | en_US |
| dc.contributor.author | Baraniuk, Richard G. | en_US |
| dc.contributor.author | Kingsbury, Nicholas G. | en_US |
| dc.contributor.org | Center for Multimedia Communications (http://cmc.rice.edu/) | en_US |
| dc.contributor.org | Digital Signal Processing (http://dsp.rice.edu/) | en_US |
| dc.date.accessioned | 2007-10-31T00:39:49Z | |
| dc.date.available | 2007-10-31T00:39:49Z | |
| dc.date.issued | 2000-06-01 | en |
| dc.date.modified | 2006-06-21 | en_US |
| dc.date.note | 2001-08-26 | en_US |
| dc.date.submitted | 2000-06-01 | en_US |
| dc.description | Conference Paper | en_US |
| dc.description.abstract | Multiresolution signal and image models such as the hidden Markov tree aim to capture the statistical structure of smooth and singular (edgy) regions. Unfortunately, models based on the orthogonal wavelet transform suffer from shift-variance, making them less accurate and realistic. In this paper, we extend the HMT modeling framework to the complex wavelet transform, which features near shift-invariance and improved angular resolution compared to the standard wavelet transform. The model is computationally efficient (with linear-time computation and processing algorithms) and applicable to general Bayesian inference problems as a prior density for the data. In a simple estimation experiment, the complex wavelet HMT model outperforms a number of high-performance denoising algorithms, including redundant wavelet thresholding (cycle spinning) and the redundant HMT. | en_US |
| dc.description.sponsorship | Texas Instruments | en_US |
| dc.identifier.citation | H. Choi, J. Romberg, R. G. Baraniuk and N. G. Kingsbury, "Hidden Markov Tree Modeling of Complex Wavelet Transforms," vol. 1, 2000. | |
| dc.identifier.doi | http://dx.doi.org/10.1109/ICASSP.2000.861889 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/19793 | |
| dc.language.iso | eng | |
| dc.subject | multiresolution signal | * |
| dc.subject | image | * |
| dc.subject | hidden markov tree (HMT) | * |
| dc.subject | model | * |
| dc.subject | Bayesian | * |
| dc.subject | wavlet | * |
| dc.subject.keyword | multiresolution signal | en_US |
| dc.subject.keyword | image | en_US |
| dc.subject.keyword | hidden markov tree (HMT) | en_US |
| dc.subject.keyword | model | en_US |
| dc.subject.keyword | Bayesian | en_US |
| dc.subject.keyword | wavlet | en_US |
| dc.subject.other | Wavelet based Signal/Image Processing | en_US |
| dc.title | Hidden Markov Tree Modeling of Complex Wavelet Transforms | en_US |
| dc.type | Conference paper | |
| dc.type.dcmi | Text |