Kotov V.M., Shkerdin Gennady, Averin S. Acousto-optic filters usiong multi-phonon Bragg diffraction. In: 13-th School on Acousto-Optics and Applications. Program and Abstracts. Moscow 19-23 June, 2017, 19-23 Июня 2017 г., Москва , National University of Science and Technology MISIS 4 Leninsky Prospekt, 119049 Moscow, Russia , С. 41-42.
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Аннотация
Image edge enhancement is of great importance in optical image processing. This approach allows to reduce the information data array but at the same time to preserve such essential characteristics for the recognition of the object as its shape, size, peculiarities of motion, etc. The simplest and widely used in practice method of the edge enhancement is Fourier processing using spatial filters with specified parameters (characteristics). Acousto-optic (AO) cells are attractive filters because they allow very simple change of the filter characteristics (period and depth of acoustic grating). However, in the majority of cases the AO interaction is one-dimensional process. Therefore, conventional AO cells don’t allow to perform the 2D image processing. AO-filters with special characteristics are required. Или: To process such images, it is necessary to develop special AO filters. In [1-5] AO filters are described which make it possible to obtain a two-dimensional image contour on the basis of the two- and three-phonon Bragg diffraction. In our report we are giving a common approach to AO filters using the multi-phonon Bragg diffraction.
| Тип объекта: | Доклад на конференции или семинаре (Доклад) |
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| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Котов В.М., Шкердин Г.Н., Аверин С.В. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 257 лаб. быстропротекающих оптических явлений в твердотельных структурах |
| URI: | http://cplire.ru:8080/id/eprint/6078 |
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