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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2. Отображено 2.
18-07-2023 дата публикации

Rotating target detection method fusing optical and SAR image multi-modal information

Номер: CN116452936A
Автор: XU KAI, LIU SIYUAN, WANG ANLING, WANG ZIYU, LIANG DONG
Принадлежит:

The invention relates to a rotating target detection method fusing optical and SAR (Synthetic Aperture Radar) image multi-modal information, and compared with the prior art, the method can effectively solve the problem that a target cannot be accurately identified due to various interferences in the remote sensing image acquisition and transmission process. Meanwhile, the method can also solve the problems that different types of targets have different shapes, sizes, colors and other characteristics or have overlapping, shielding and the like. The method comprises the following steps: extracting features of an SAR image data set and an optical image data set; performing cross-modal multi-scale feature fusion; the two-stage rotation prediction head positions and classifies targets at different angles. The method can effectively solve the problem that a single-mode target cannot be accurately detected due to weather, illumination, object color and the like, and the problem that the target ...

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Номер записи: 1
02-06-2023 дата публикации

Optical image-assisted satellite-borne stereo SAR image control point automatic generation method

Номер: CN116203562A
Автор: XU KAI, ZHANG FEIXIANG, WANG ZIYU, KIM WON, WANG WENXIN
Принадлежит:

The invention relates to an optical image-assisted satellite-borne stereo SAR image control point automatic generation method, and compared with the prior art, matching, extraction and error elimination of control points such as lamp posts are automatically completed from different lifting rail stereo SAR images, and available control points are formed. The method comprises the following steps: extracting approximate coordinates of same-name lamp pole points on a stereo SAR image based on a high-resolution optical image; roughly extracting image space coordinates of the PS point of the SAR image lamp pole; accurately extracting PS point coordinates of the SAR image lamp pole; removing an abnormal value of the PS point of the SAR image lamp pole; compensating the PS point coordinate error of the SAR image lamp post; and generating a three-dimensional coordinate of a lamp pole control point through stereo adjustment processing. According to the method, automatic matching, extraction and error ...

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Номер записи: 2