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伊拉克批准中国和英国新冠疫苗紧急使用_中国江苏网
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伊拉克批准中国和英国新冠疫苗紧急使用 | 黑龙江新闻网
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科学家利用卫星图像和深度学习统计非洲大象的数量
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IMAGE: Elephants in woodland as seen from space. Green rectangles show elephants detected by the algorithm, red rectangles show elephants verified by humans. view more
Credit: Satellite image (c) 2020 Maxar Technologies
Editor s Note: In the fifth graf, the number of African savannah elephants left in the wild was updated to 415,000.
For the first time, scientists have successfully used satellite cameras coupled with deep learning to count animals in complex geographical landscapes, taking conservationists an important step forward in monitoring populations of endangered species.
For this research, the satellites Worldview 3 and 4 used high-resolution imagery to capture African elephants moving through forests and grasslands. The automated system detected animals with the same accuracy as humans are able to achieve.
医疗资源吃紧！ 日本居家隔离者破3万 _杭州网旅游频道
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