Perfect reconstruction image modulation based on BEMD and quaternionic analytic signals | |
Qiao LiHong ; Niu KaiFu ; Wang Ning ; Peng LiZhong | |
2011 | |
关键词 | perfect reconstruction image modulation AM-FM representation BEMD quaternionic analytic signals EMPIRICAL MODE DECOMPOSITION 2-DIMENSIONAL FRINGE PATTERNS PHASE QUADRATURE TRANSFORM NATURAL DEMODULATION SEPARATION |
英文摘要 | Image modulation represents image by meaningful characters such as image instantaneous amplitude and instantaneous frequency. A perfect reconstruction image modulation method is proposed. In detail, the bidimensional empirical mode decomposition (BEMD) is first improved to adaptively decompose image into monocomponents. Then by the quaternionic analytic method, suitable analytic signals is acquired. A new polar form is further proposed to modulate images, then seven characters are derived including instantaneous amplitude and instantaneous frequencies. We demonstrate the techniques on both synthetic and natural images, depict the needle program of the estimated frequencies and obtain the reconstructions that are the same with the original images. The applications in image segmentation and separation establish the validity of characterizing images of this type as sums of locally narrow band modulated components.; Computer Science, Information Systems; SCI(E); 1; ARTICLE; 12; 2602-2614; 54 |
语种 | 英语 |
出处 | SCI |
出版者 | science china information sciences |
内容类型 | 其他 |
源URL | [http://hdl.handle.net/20.500.11897/237416] |
专题 | 数学科学学院 |
推荐引用方式 GB/T 7714 | Qiao LiHong,Niu KaiFu,Wang Ning,et al. Perfect reconstruction image modulation based on BEMD and quaternionic analytic signals. 2011-01-01. |
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