{"id":"583804cd-0444-4eba-a1ac-b48fe068a6b5","title":"西藏波密资源三号卫星影像DSM产品数据集（2018）","title_en":"DSM product data set of Tibet Bomi resource 3 satellite image (2018)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"该数据以栅格数据形式存储，为GeoTIFF格式。文件名为dsm20181029.tif，大小为604MB，压缩为zip格式。使用“西藏波密资源三号卫星影像DSM产品数据集（2018）”数据时，需引用下列论文：\n[1] Peng S, Huang F, Tie B, et al. Optimization research on DSM product generation of ZY-3 satellite image based on the combination of image frequency-domain fusion and filtering. IGARSS, 2020: 244-247.","description":"该数据为使用购买的示范区资源三号卫星遥感影像，基于立体像对匹配方法生成对泥石流沟区域的大范围DSM数据。加工方法如下：\n（1）由于原始影像中存在大量云层和阴影噪声，本研究运用IDL语言进行开发，制作形成专用于多云山区的卫星影像的去噪和信息补全程序。\n（2）将正视校正影像作为左影像，前视校正影像为右影像，使用ENVI进行DSM的生产。\n（3）使用30 m分辨率的ASTER-DEM数据，选定至少4个典型的地面控制点对进行地理校正，确保地理坐标误差在1″的量级。\n（4）使用交叉熵，均方根误差和面误差信息熵作为精度评价指标，与经原始数据得到的DSM进行对比，验证处理后的DSM成像精度得到提升。","doi":"10.11888/Terre.tpdc.272024","projection":"UTM","language":"zh","share_type":"online","east":95.61,"west":95.2,"south":29.75,"north":30.05,"scale":null,"crs":null,"filesize":604.0,"share_policy":"a","ts_created":"2022-01-26T09:44:18.622241+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-02-14T16:49:09.817984+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"何思明","username":"何思明","email":"hsm@imde.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"--","spatial_resolution":"1m - 10m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"583804cd-0444-4eba-a1ac-b48fe068a6b5","three_pole":null,"third_pole":null},"username":"刘双","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":68}