From Snapshots of Geography to Digital Reality: A Concept on the Future Integration of Photogrammetry, RS, Surveying, Image Processing, Information Visualization and GIS
Product Manager – Photogrammetry
Leica Geosystems GIS & Mapping Division
E mail:[email protected]
Images acquired from airborne cameras, satellite sensors and even hand-held cameras record an instance of life on earth at a ‘macro’ level. Distances, angles and locations obtained from using a GPS receiver or a theodolite accurately record an instance of geography at a ‘micro’ level.
Images and survey measurements serve as a permanent record of geography. These records of geography record buildings, roads, rivers, trees, schools, mountains, and other features located on the earth’s surface. But these records go beyond simply recording features. They also record relationships and processes as they occur in the real world. These records are snapshots of geography and they chronicle our earth and everything associated with it; they record a specific place at a specific point in time. They are snapshots of our changing cities, rivers, and mountains.
National mapping agencies and data production shops around the world use variety of ways to create and update a geo-spatial information infrastructure. This includes a combination of both hardware and software components including surveying, GPS, LIDAR, photogrammetry, remote sensing, data visualization and GIS. Integrating all of these technologies so as to streamline the production workflow is a challenge.
Streamlining the process associated with capturing records of geography from a variety of sources and transforming it into reliable, timely information that can be used to create, maintain and sustain and information infrastructure is the key to success. The complexity of the problem lies in ‘seamlessly’ integrating the various technologies, so as to streamline the process associated with recording and transforming snapshots of geography into digital reality directly into an information infrastructure.
This paper presents a conceptual overview of a proposed system, which integrates the various hardware, and software components required to capture records of information and subsequently transform them directly into an information system. The underlying foundation of the proposed system consists of a comprehensive data model subsiding in a local or enterprise database. The data model is the impetus behind powering the workflow required to record geography and subsequently transform it into information stored in a database.
The underlying data model is the common ‘ingredient’ that can be used to streamline a variety of workflow’s regardless of the technology used to record the information. The proposed system supports distributed networks thereby enabling multi-user transactions of geo-spatial content.