Results 21 to 30 of about 22,554 (129)
Nondestructive Inspect of Fruit Quality with Hyperspectral Imaging Technology(基于高光谱成像技术的水果品质无损检测) [PDF]
Shipin kexue jishu xuebao, 2013 Image cubes containing continuous spectral waveband information, in which the image information could be used for external attribute inspection while the spectral information could be applied to the internal attribute inspection, could be obtained by ...
SUN Mei(孙 梅) +4 more
doaj +1 more source
智能科学与技术学报, 2021 针对视网膜疾病种类繁多、病灶位置不固定等特点，提出一种基于深度卷积集成网络的视网膜多种疾病筛查和识别方法。首先，根据视网膜眼底图像裁剪掉两侧黑色边框，并去除图像中的噪声，以降低对眼底图像的干扰，提高图像的清晰度；之后，通过对处理完成的视网膜眼底图像使用裁剪、旋转等数据增强方法来扩增数据集；再建立基于深度卷积神经网络的模型进行特征提取，并在网络模型微调后完成视网膜疾病筛查和识别任务，最终将多个模型的结果进行集成。实验结果表明，该方法针对视网膜疾病的筛查和识别的问题取得了较好的效果 ...
王禾扬, 杨启鸣, 朱旗
doaj
智能科学与技术学报, 2021 提出一种基于最大相关熵和局部约束的协同表示分类器（CRC/MCCLC），该分类器能同时利用最大相关熵和局部信息。一方面，通过利用最大相关熵准则，CRC/MCCLC不仅在异常值处理上比L1范数鲁棒性更高，还可以使用半二次优化技术进行更有效的计算；另一方面，CRC/MCCLC 通过使用局部信息得到近似稀疏表示，以此从训练样本中获得更多的判别信息。在 ORL、Yale 以及 AR 人脸数据集等图像数据集上的实验结果验证了CRC/MCCLC 方法的有效性。
余沁茹, 卢桂馥
doaj
When and why to give shorebirds a head start
Conservation Biology, EarlyView.Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source
Evaluating past and future contributions of conservation programs to species recovery
Conservation Biology, EarlyView.Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young +10 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Prioritization in conservation is crucial for the development of efficient and effective decision‐making policies. For many decades, the importance of some species and their habitats has been assessed and applied in conservation legislation, but bats and their diurnal roosts have ofbeen overlooked.
David López‐Bosch +6 more
wiley +1 more source
智能科学与技术学报, 2021 磁共振（MR）是一种被广泛使用的医学成像方式。针对某些序列的 MR 影像不易直接获得、需要由其他序列的MR影像转换的问题，提出一种基于细节增强的MR序列转换方法。该方法基于条件生成对抗网络构建了残差模板合成模块 ResGAN和细节增强合成模块 EnGAN，设计了一种端到端的网络结构。在一组配准过的神经纤维瘤T1序列影像和STIR序列影像上进行了测试，结果表明，相比于现有方法，提出的方法更好地还原了边界细节和信号强度细节。
严凡, 邸奕宁, 张建伟, 陈为
doaj
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
智能科学与技术学报, 2020 车辆再识别是指给定一张车辆图像，找出其他摄像头拍摄的同一车辆，可将车辆再识别问题看作图像检索的子问题。在真实交通监控系统中，车辆再识别可以起到对目标车辆进行定位、监管、刑侦的作用。随着深度神经网络的兴起和大型数据集的提出，提升车辆再识别的准确度成为近年来计算机视觉和多媒体领域的研究热点。从不同角度对车辆再识别方法进行了分类，并从特征提取、方法设计和性能表现等方面对车辆再识别技术进行了概述、比较和分析，对车辆再识别技术面临的挑战及发展趋势进行了预测。
刘凯, 李浥东, 林伟鹏
doaj
Automating the analysis of public saliency and attitudes toward biodiversity from digital media
Conservation Biology, EarlyView.Abstract Measuring public attitudes toward wildlife provides crucial insights into human relationships with nature and helps monitor progress toward Global Biodiversity Framework targets. Yet, conducting such assessments at a global scale presents challenges.
Noah Giebink +8 more
wiley +1 more source