Maximum Entropy Image Reconstruction from Microwave Scattered Field Distribution

Baribaud, M.; Nguyen, Maï K.

doi:10.1109/euma.1988.333921

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Microwave Imaging1

Maximisation Of the Function S ( J )1

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1990

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“…case [43]. In microwave imaging we have to determine the magnitude of the equivalent current distribution J , which is J # 0 inside the object.…”

Section: Microwave Imagingmentioning

confidence: 99%

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Microwave imagery: analytical method and maximum entropy method

Baribaud¹

1990

J. Phys. D: Appl. Phys.

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The principle of active microwave imagery is as follows: the medium and the object are traversed by an electromagnetic wave of known characteristics and the image of the object is then reconstituted from the scattered field measured beyond the object. Unfortunately the problem is ill-posed and the results are not unique. The analytical method uses the assumption div J=0; this assumption is discussed and compared with other methods and the results of numerical simulation are given. The maximum entropy method is used to obtain the image whose structure is the nearest figure. The images obtained by this method have a good accuracy and show proof of the high standing of this method of image reconstruction.

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“…case [43]. In microwave imaging we have to determine the magnitude of the equivalent current distribution J , which is J # 0 inside the object.…”

Section: Microwave Imagingmentioning

confidence: 99%

“…Hence we have to search iteratively. The general problem of function maximisation has been studied by several authors [39][40][41][42][43][44] and many methods proposed. The method used by Daniel1 and Gull [41] allows one to obtain images of good contrast but which are unstable.…”

Section: Maximisation Of the Function S ( J )mentioning

confidence: 99%

Microwave imagery: analytical method and maximum entropy method

Baribaud¹

1990

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

Maximum Entropy Image Reconstruction from Microwave Scattered Field Distribution

Cited by 1 publication

References 4 publications

Microwave imagery: analytical method and maximum entropy method

Microwave imagery: analytical method and maximum entropy method

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