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Jx-4A数字摄影测量工作站是国家“863计划”信息获取与处理技术主题中的子项目和国家测绘局测绘科技发展基金项目。以中国工程院院士刘先林为首的中国测绘科学研究院的科题组,根据测绘行业寻求更为先进的1:5万、1:1万比例尺及更大比例尺地图修测手段和设备这一市场需求,在Jx-3解析测图仪的基础上,开发研制成功了Jx-4A数字摄影测量工作站。Jx-4A数字摄影测量工作站选用微型计算机为主机,通过专用的摄影测量立体显示卡实现了双图形、双图像漫游,快速国像缩放,为国内外首创。它的立体编辑功能强、具有全汉字化界面,内定向、相对定向、绝对定向、影像相关、数字地面模型生成、数字正射影像制作和人机交互的数字测图功能,以及有效的质量控制手段,操作简便、灵活,能满足当前“4D”生产的基本要求。它实现了解析测图仪向数字摄影测量系统的过渡,是符合我国测绘生产实际
Jx-4A Digital Photogrammetry Workstation is a subproject under the theme of “863 Program” information acquisition and processing technology and a project of Surveying and Mapping Technology Development Fund of the State Bureau of Surveying and Mapping. According to the subject group of China Academy of Surveying and Mapping, headed by Liu Xianlin, a member of the Chinese Academy of Engineering, the more advanced 1: 50,000, 1: 10,000 and larger scale mapping means and equipment are required by the surveying and mapping industry. Based on the Jx-3 analytical plotter, the Jx-4A digital photogrammetric workstation was successfully developed. Jx-4A digital photogrammetric workstation selected microcomputer as the host, through a dedicated photogrammetric three-dimensional graphics card to achieve a dual graphics, dual image roaming, fast country image scaling, pioneering at home and abroad. Its powerful stereo editing features digital mapping with full Chinese characterization interface, internal orientation, relative orientation, absolute orientation, image correlation, digital terrestrial model generation, digital orthophoto production and human-computer interaction, as well as effective quality control Means, easy to operate, flexible, to meet the current “4D ” production of the basic requirements. It realizes the transition from the analytical plotter to the digital photogrammetry system and is in line with the actual production of surveying and mapping in our country