| 1. | Interpretation of features seen in aerial photographs is also helpful . 航片中可见形迹的解释对比也是有益。 |
| 2. | Aerial photographs are taken in strips with sufficient overlap to yield a three-dimensional image when viewed under stereoscope . 为了在立体镜下获得立体图象,航片是成带拍摄的,并具有足够的重叠。 |
| 3. | Zhifanggou watershed of ansai is taken as a case study in this paper 文章试以安塞纸坊沟流域为例,通过航片解译分析流域土地利用现状。 |
| 4. | The transfer technique of aerial photos based on the computer in forestry investigation and drawing imaging 基于计算机的森林调查调绘航片转绘技术研究 |
| 5. | Look up countries , cities , and airports and obtain topographic maps , weather data , and selected satellite imagery -提供电子地图产品网上地图下载数据采集地图加工服务航片和卫片解译及mapinfo产品代理。 |
| 6. | Paper brief introduce the situation of garbage in beijing and remote sensing , mainly introduce how the aerial remote sensing was used to investigate and analyse the situation about the garbage in beijing and it ' s advantage , given the sign of garbage in aerial remote sensing picture clearly 本文简要介绍了北京市垃圾现状,主要介绍了如何将遥感技术应用于垃圾处理中及其优势,并明确给出了航片的垃圾判读标志。 |
| 7. | The reference image must be stored in the uav before its flight . this dissertation is dedicated to generating the reference image with an easy way . military maps and airscapes can be compartmentalized into small blocks , so they can be put into the computer by a common scanner 图像导航制导所需的基准图一般先期制作,本文就是利用一种简单的方法生成基准图,即用办公用扫描仪把大幅面的军事地图和高质量航片分块扫描至计算机,再通过拼接利用相关控制点把两者合而为一。 |
| 8. | Based on the color aerial photo and the field survey data , this paper analyze the information of various land use type change and spatial characteristics in yanan ecological construction demonstration area from 2000 to 2003 by rs , gis and statistics methods 摘要以航片等资料为基础,借助遥感影像解译、地理信息系统空间分析功能以及数理统计方法,分析了延安生态建设示范区2000 - 2003年间各土地利用类型的数量变化和空间特征,并且首次引入退耕指数、退耕弹性系数等指标对退耕还林工作进行评价。 |
| 9. | However , people studied the riverway mainly by field survey and landform map contrast before . because of the limits of man ' s field view and complexity of field survey route , it is a difficult bottle neck for people to make synthetical analysis on geological structure , yangtze river shoal , floodplain , terrace , and microcosmic suspended load on macroscopical scale 而以往的河道研究大多数是通过地面调查和地形图室内对比分析来研究的(少数运用航片) ,由于受人的视域范围及调查工作路线的布置的复杂度影响,对区域宏观尺度下的地质构造、长江沙洲、漫滩、阶地及河流微观领域的悬浮物等作综合性的研究便成为了瓶颈。 |
| 10. | Also because this technology to build 3d gis relates to a lot advanced data acquisition means , such as satellite photography and aerial photography . to help understanding , i introduce some geographic information system ' s elementary theory and some knowledge about photo processing and measurement 因为创建三维地理信息系统涉及一些先进的数据获取手段(例如卫星影像、航片的处理) ,为方便理解,本文也介绍了一些专业外的地理信息系统的基础理论知识和一些先进的遥感图像处理、摄影测量技术。 |