搜索结果: 1-6 共查到“农学 RGB-D”相关记录6条 . 查询时间(0.046 秒)
Assessment of an improved individual tree detection method based on local-maximum algorithm from unmanned aerial vehicle RGB imagery in overlapping canopy mountain forests
CROWN DETECTION POINT CLOUDS UAV IMAGERY SEGMENTATION DELINEATION LIDAR INVENTORY HEIGHT FIELD
2023/12/15
Low consumer-grade cameras attached to small unmanned aerial vehicles (UAV) can easily acquire high spatial resolution images, leading to convenient forest monitoring at small-scales for forest manage...
Estimation of Plant Height and Aboveground Biomass of Toona sinensis under Drought Stress Using RGB-D Imaging
Plant Height Aboveground Biomass Toona sinensis
2023/6/2
Background: Rapid and accurate plant growth and biomass estimation is essential for formulating and implementing targeted forest cultivation measures. In this study, RGB-D imaging technology was used ...
AGB Estimation in a Tropical Mountain Forest (TMF) by Means of RGB and Multispectral Images Using an Unmanned Aerial Vehicle (UAV)
forest AGB UAV RGB data multispectral data
2024/2/4
The present investigation evaluates the accuracy of estimating above-ground biomass (AGB) by means of two different sensors installed onboard an unmanned aerial vehicle (UAV) platform (DJI Inspire I) ...
为了快速、无损地获得苹果叶片叶绿素含量与其表面颜色特征之间的关系，为诊断苹果树生理状况提供科学依据。以新梢旺长期的红富士苹果树为研究对象，应用数码相机采集叶片图像，利用图像处理技术，采集叶片图像的红（R）、绿（G）和蓝（B）值，通过运算组合构造颜色特征参数，建立基于苹果叶片颜色特征参数的叶绿素含量估算模型，并对其精度进行评价和验证。结果表明，叶绿素含量敏感的颜色参数分别为B、B/R、B/G、G/（...
基于RGB-D相机的玉米茎粗测量方法
作物表型 RGB-D相机 茎粗 点云拟合
2017/11/15
为实现田间玉米茎粗的快速测量，提出了一种基于RGB-D（RGB-Depth）相机的玉米茎粗参数提取方法。以小喇叭口期玉米为观测对象，利用RGB-D相机获取田间玉米的彩色图像和深度图像。首先，根据玉米与背景的颜色差异，对图像进行自动阈值分割，提取图像中感兴趣区域内的信息；利用形态学"开"操作剔除图像中的噪声，得到玉米茎杆的主干。其次，对茎杆主干进行骨架化操作，检测骨架的交叉点和末端点，确定茎杆的待测...
ON THE NUMBER OF RGB COLOURS WE CAN DISTINGUISH PARTITION SPECTRA
partition-colour-spectra RGB-cube HSV-space ordering colours reshuffling by hues
2010/3/24
Colour vision is a physiological phenomenon, and rays are not coloured (Newton, Wright).
While counting hues of solar spectrum is a solved problem, the exact number of colours is unknown.Existing col...