Ortho Seam Lines with Photo Exposure Dates - 2023 Imagery

In 2023, on behalf of the NC Center for Geographic Information and Analysis five contractors captured 6-inch pixel 4 band true color plus NIR ortho imagery for the 21 inner Southern Piedmont and Mountains Counties in NC (SPM23). This file documents the mosaic of imagery exposures and associated seamlines used to generate the countywide collection of imagery in all Study Areas. Seamlines were combined from each study area allowing for smooth transitions between each exposure frame. For the Surdex Corporation seamlines, the exposures have a value of 0. Surdex flies a push broom sensor where the entire flight line is caputured as a single image.2023年，受北卡罗来纳州地理信息与分析中心（NC Center for Geographic Information and Analysis）委托，五家承包商为北卡罗来纳州南部皮埃蒙特与山地内陆21个县（SPM23）采集了6英寸像素、四波段真彩色加近红外正射影像。本文件记录了所有研究区内用于生成全县影像集合的影像曝光拼接成果及配套接缝线。接缝线由各研究区合并生成，可实现各曝光帧之间的平滑过渡。针对瑟德克斯公司（Surdex Corporation）的接缝线，其对应曝光的取值为0。瑟德克斯搭载推扫式传感器，可将整条飞行航线作为单幅影像完成采集。