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北京空视信息技术有限公司简介 |
北京空视信息技术有限公司由留德归国人员创办，主要致力摄影测量、遥感和计算机视觉等领域前沿技术的研发、技术的软件实现和应用推广。
公司完全自主研发了针对性能和效果均进行了优化的半全局立体匹配算法（SGM），并应用于航空影像（包括倾斜航空影像）、卫星影像和无人机影像的密集立体匹配，可逐像素生成高密度的点云和数字表面模型(DSM)；研发了多级三角网地形滤波算法，算法能从DSM自动生成DEM（数字高程模型），也即剔除DSM中建筑物和植被的高度，得到纯粹地面的高度，并可根据需要设置不同层级的地形细节丰富程度，适用于卫星影像、航空影像、无人机影像和LiDAR提取的DSM；研发了分块回归的高分辨率全色影像和低分辨率多光谱影像融合算法，融合后影像既保持了高分率全色影像的空间细节信息，又最大程度地保持了多光谱影像上的色彩信息，融合算法不受多光谱影像波段数目限制，针对超高分辨率卫星影像进行了特别优化；研发了适合影像处理不同步骤的多个层级系列并行处理技术，既可多任务并发处理，又可单任务并行处理，系列并行处理技术可适用于多核计算机和集群计算机平台。
以上创新性前沿技术以软件形式进行了实现，并开发了用于形成完成处理流程的各功能模块。公司分别针对航空影像、卫星影像和无人机影像开发了DSM自动提取、DSM自动生成DEM、正射纠正、卫星影像融合、立体/三线阵卫星像对自动定向、高度变化发现等模块，分别形成了航空影像、卫星影像和无人机影像完整处理流程；经过以上流程，可加工生成密集点云、DSM, DEM, nDSM, 正射影像、融合影像和高度变化图等。软件可支持Windows和Linux系列操作系统，可部署于单机多核计算机系统和集群计算机系统，多层级并行处理技术的应用可最大程度地发挥以上计算平台的性能优势。
公司研发的以上前沿技术和软件可应用于以下场景：（1）测绘产品制作（点云、DSM, DEM, 正射影像、融合影像等）；（2）新建、超建、违建、拆除建筑物的自动发现及高度精确计算；（3）新城、居住小区、大型工程建设进度监测；（4）征地和拆迁取证；（5）地表矿产资源开采量估算、体积计算；（6）数字城市、三维场景建模；（7）商业和军事情报收集等；（8）建筑物和树高度精确估算。
公司将为不同类客户提供不同的能力提示途径：针对数据密集型生产企业，我们通过优化处理流程和提高处理效率提升其数据加工处理效率；针对面向行业的应用性企业，我们通过技术的升级帮助其开展新型的、利润率高的应用；针对软件开发类企业，我们通过提供核心技术模块的方式帮助其完善其业务软件系统；针对云服务提供型企业，我们以软件提供商的方式为其提供行业软件；针对科研教育用户，我们通过为其提供软件和服务模式为其科研工作提供技术和实验的快速实现。
北京空视信息技术有限公司的宗旨是“客户能力的提升是我们最大的使命”，我们竭诚欢迎任何形式的合作。
北京空视信息技术有限公司主要业务与优势
以下条目可点击进入：
产品信息
典型应用
技术专栏 公司新闻 公司介绍 下载 联系信息
为全面、快速掌握MASI软件采用的技术、具备的功能及其应用，推荐重点阅读以下文章：
（1）产品信息
-> 新版航空与卫星影像自动处理软件MASI
Version 6.3的主要特色；直接进入
（2）典型应用；直接进入
（3）技术专栏
-> 遥感影像处理中的高性能计算——以国产MASI软件为例；直接进入
（4）技术专栏
-> 使用MASI最新版软件对最高分辨率商业卫星Pléiades
Neo 30 cm三视立体进行全流程处理；直接进入
（5）技术专栏
-> MASI v6.2版软件处理速度测试结果——以高分七号为例；直接进入
中文版在顶部
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Brief
Introduction of VisionOnSky |
VisionOnSky Co.,
Ltd is founded by scientific researcher, and is a startup company which is
concentrating on the development of state-of-the-art technology, software
realization of the new techniques and industrial applications.
The company
independently developed a both effect and performance optimized semi-global
matching (SGM) algorithm which is applied to dense stereo matching of aerial
image (including oblique aerial image), satellite image and UAV image. It
generates highly dense point clouds and digital surface model (DSM) through
finding the point corresponding for each pixel. We also developed a multilevel
triangle-based ground filtering algorithm, which can transform DSM to DTM
(Digital Terrain Model) automatically, i.e., removing the height of building and
tree, only remaining the height of pure ground. The algorithm can select
different level of terrain details in the light of the requirements. The DSM
transformed to DTM can be extracted from satellite image, aerial image, UAV
image as well as LiDAR points. We presented a block-regression (BR) based
pansharpening algorithm. The algorithm can combine a lower resolution
multispectral image and a higher resolution panchromatic image both covering a
same area, and produce a new higher resolution image, in which not only the
color content are remained but also the spatial details are enhanced by
adopting the higher resolution panchromatic image. BR algorithm can achieve a
maximum enhancement of its spatial details at the expense of a minimum spectral
distortion for the multispectral images. In the algorithm, the bands of the
multispectral image used can not be limited and the algorithm is specially
optimized for the pansharpening of very high resolution satellite image. We
also developed a series of parallel techniques with different processing
levels, which are suitable for different steps of image processing. Not only
concurrently processing of multiple tasks but also parallel processing in a
single task is supported. The series of parallel techniques can be used either
on multi-core computer or on cluster computer.
The above
innovative techniques are realized by the form of software and we also
developed multiple additional software modules. These functional modules can
compose a whole flowchart. We developed modules of stereo matching, automatic
DSM extraction, DSM2DTM, orthorectification, pansharpening of satellite image,
the automatic orientation for a stereo / triplet of satellite images, change
detection of surface height for aerial, satellite and UAV images, respectively.
The whole flowcharts for aerial, satellite and UAV images, respectively, are
fulfilled. After the abovementioned flowcharts, dense point clouds, DSM, DTM,
nDSM, orthorectified image, pansharpened image and difference of surface height
are produced. The software supports Windows OS and Linux OS, and can run on
multi-core computer and cluster computer. The parallel techniques with
different processing levels can leverage computational resources of the two
types of computing platforms to the maximum extent.
The developed
cutting-edge techniques and software can be applied to these aspects: (1)
generation of mapping products (point clouds, DSM, DTM, orthorectified image,
and pansharpened image); (2) automatic finding of new buildings, the buildings
breaking the planning, and removed buildings, and estimating their
corresponding accurate height; (3) monitoring the construction progress of new
city, big residential district and huge engineering project; (4) testimony of
land expropriation and housing demolition; (5) estimating the exploited volume
of ores located on surface; (6) digital city and reconstruction of 3D scene;
(7) collection of commercial and military intelligence; (8) accurate estimation
of height of buildings and trees.
VisionOnSky Co.,
Ltd can provide different channels through which the capacity of different
customers is enhanced. For companies with the data-intensive production, we
promote their processing efficiency by optimizing their procedure and offering
them the methods with high efficiency. For application-oriented companies, we
help them to engage new and more profitable applications by means of technical
updating. For software companies, we help them to improve their own software
system by licensing them our technical modules. For companies providing cloud
service, we as software provider offer them our professional software. For the
users in academic research and education, we provide them the rapid realization
of techniques and experiments in the course of research study by offering them
our software and services.
The mission of
VisionOnSky Co., Ltd is to promote capacity of our customers. We cordially
welcome any form of cooperation.
Main
work in VisionOnSky
The following
items can be accessed by clicking:
Products Applications Technology News Company Download Contact
In order to
comprehend our techniques and products quickly and completely, visitors are
recommended to read the following webpages:
(1) Products
-> VisionOnSky released MASI Version 6.0 software; directly
enter
(2) Applications;
directly
enter
(3) Technology; directly
enter
