Orthophoto Processing

Feiyan Remote Sensing specialises in high-resolution orthophoto map processing including digital orthophotos and orthophoto mosaics from raw aerial survey photography and digital image capture. Orthophotos combined with a topographic mapping project give a precise reference backdrop tool that enhances the users understanding of any project area. Combined into orthophoto mosaics the imagery can cover large areas such as a catchment, river basin, highway or even local government area.

Process of Orthophoto Data Processing

Orthophoto data processing is the process of converting aerial photographs into a georeferenced and orthorectified image, which can be used in geographic information systems (GIS) or other mapping applications. The steps involved in orthophoto data processing typically include the following:

● Image acquisition

Aerial photographs are taken using a camera mounted on an airplane or drone.

● Image calibration

The photographs are calibrated to account for camera distortion and other factors that may affect the accuracy of the resulting image.

● Image matching

The photographs are matched to each other to create a seamless mosaic of the entire area being mapped.

● Digital elevation model (DEM) creation

A DEM is created using LiDAR or other data sources to provide information on the elevation of the terrain.

● Orthorectification

The aerial photographs are orthorectified using the DEM, which involves correcting for perspective distortion and other effects to produce a map-like image that can be used for accurate measurement and analysis.

● Color balancing

The colors of the orthophoto are balanced to ensure accurate representation of the terrain and objects being mapped.

● Quality control

The orthophoto is reviewed for accuracy and any errors or issues are corrected.

The resulting orthophoto data can be used in a variety of applications, such as land use planning, environmental monitoring, urban development, and more.

Features & Benefits of Orthophoto Processing

Orthophoto is an aerial photograph that has been geometrically corrected or ortho-rectified so that the scale of the photograph is uniform and utilised in the same manner as a map. An orthophotography can be used to measure true distances of features within the photograph. Planimetric corrections have been applied to remove lens distortions and optics, camera angle, and differences in elevation through a process of measuring ground control points to connect the photo to the ground, in a drawing-pin like manner. An orthophoto is an accurate representation of the Earth' s surface. Orthophoto has the benefits of high detail, timely coverage combined with the benefits of a map including uniform scale and true geometry. 

Specifications of Orthophoto Processing

Resolution: 0.1m

Project area: 4,200km²

Duration: 90 days

Output: DOM(1:1000)

Application: The Third National Land Survey of Putian City

From: Putian City Land and Resources Bureau

 Feiyan Technology — Best Aerial Imagery Company In Asia

The main business of Feiyan Remote Sensing includes orthophoto, aerial photogrammetry, LiDAR data processing, high-precision DEM, DSM production, remote sensing image analysis and interpretation, geographic information engineering, three-dimensional urban modeling, 3D GIS industrial solutions, and etc. Customers use the company's solutions in a range of industrial disciplines – from urban planning and utilities to forestry, hydrology, agriculture, transportation, and natural resources.

If you need high efficient Orthophoto data processing, please don't hesitate to contact us and get high quality and efficient orthophoto processing service from us. We will always offer you professional technical support at any time.