Fast ship contour extraction in sar images
WebIn [12], both ship bounding boxes and contours are extracted based on the active contour algorithm. These ship detection approaches are based on manually extracted features, experienced statistic model and traditional … WebDec 26, 2016 · Ship target recognition has always been a hot issue in the field of ocean surveillance. Due to the serious shortage of samples in ship target recognition for synthetic aperture radar (SAR) images, the template-based method is still one of the most effective ways to solve the problem. In this letter, we put forward a novel ship recognition …
Fast ship contour extraction in sar images
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WebAbstract. Fast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes … WebFast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes extracted from them are...
WebInstitution of Engineering and Technology - Wiley Online Library WebDec 18, 2013 · The ship closed-contour image is first produced using a standard algorithm. A new two-step process is then presented for exact azimuth angle estimation. Modified criteria of centerline and minimum enclosing rectangle (MER) extraction are developed, and applied to calculate the ship dimension.
WebJun 22, 2024 · With the rapid development of optical remote sensing satellites, ship detection and identification based on large-scale remote sensing images has become a significant maritime research topic. Compared with traditional ocean-going vessel detection, inshore ship detection has received increasing attention in harbor dynamic surveillance … WebJun 26, 2024 · To improve the contour extraction results of a ship head, contour refinement strategies and a Gini coefficient-based criterion were presented to remove non-shiphead contours with large...
WebMultiscale ship detection in large-scene offshore synthetic aperture radar (SAR) images is of great significance in civil and military fields, such as maritime management and wartime...
huddle up oregon scholarshipWebAbstract: Fast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes … holbein gate whitehallWebMay 13, 2024 · The speed of SAR ship detection is limited by two main aspects: the imaging speed of SAR and the detection speed of the algorithm. As the imaging speed of military SAR currently applied to maritime security is increasing rapidly, the speed of detection of algorithms is particularly important. huddle up reclining sofa with drop down tableWebAug 26, 2024 · Representative results of CycleGAN on the style translation of satellite ship images and SAR ship images: (left) the satellite image is translated to SAR image; (right) the SAR image is translated to satellite image. 3.2. Improved Libra RetinaNet Tiny object detection with the complex scene is a great challenge in the SAR ship detection task. huddleupwithgus on sounderfmWebNov 1, 2024 · In research on ship monitoring with SAR images, based on the subaperture crosscorrelation magnitude algorithm, Brekke et al. [15] added a sub-band extraction method to enhance the contrast... huddle up pub cornell wiWebMar 1, 2014 · A novel computational model for automatic ship detection in optical satellite images that selects salient candidate regions across entire detection scene by using a bottom-up visual attention mechanism and two complementary types of top-down cues are employed to discriminate the selected ship candidates. 117 huddle-up reclining sofa and loveseatWebOct 1, 2024 · Fast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes … holbein gold watercolor brushes