Mkrtchyan F.A. Problems in detecting and classifying sea surface anomalies by remote sensing. In: North Pacific Marine Science Organization (PICES) Annual Meeting 2015. “Change and Sustainability of the North Pacific”, Abstracts., October 14-25, 2015, Qingdao, China , PICES , р. 272.
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Remote sensing is the collection of information on an object or area by a satellite orbiting the earth, and classifying landforms and water bodies based on those remote measurements is one of great importance. Various algorithms are developed for image recognition, then cluster analysis is used to sort or classify the objects. Presently there are many ways to produce recognition by developing a variety of algorithms. The problem of recognition starts when we attempt to categorize some of the group of objects by class. . Information from remote sensing is fed into a processing system which produces a two-dimensional image of the investigated object. A statistical model of spottiness in the investigated area is developed from this type of image. In real conditions, the investigation of spots, their statistical characteristics and their use in detection is a complex procedure. So it is necessary to develop criteria allowing us to distinguish the spots from other phenomena. A mathematical model parametrizing the characteristics of sea surface spottiness is proposed in which the statistical characteristics for “spottiness” of brightness temperatures in microwaves can be used in detecting and classifying anomalies on the sea surface, caused by the degree of sea roughness. The analysis of empirical histograms for spottiness of brightness temperatures in microwaves shows that in most cases characteristics will be coordinated with an exponential distribution, and amplitude characteristics will be coordinated with a normal distribution. Therefore, to detect and classify anomalies on the sea surface it is necessary to apply optimal algorithms so statistical distributions can be calculated. Numerical results of data processing from remote sensing for the Arctic and Pacific regions are given.
| Тип объекта: | Доклад на конференции или семинаре (Доклад) |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Мкртчян Ф.А. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 209 лаб. вычислительная |
| URI: | http://cplire.ru:8080/id/eprint/543 |
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