OrthoPhoto Generation Services

Orthophoto Generation

An orthophotograph is an aerial colour photograph geometrically and geographically corrected to be superimposed on a plan. The production of orthophotograph consists of correcting the distortions of the exposures caused by ground surface relief.

Digital Orthophoto are used as maps, for visual identification, also with combination of other mapping products like DTM and contours.

We at Eratost generate a digital Orthophoto that most closely achieves the resolution of the continuous tone, original aerial image, we apply a variety of image enhancement and edge sharpening routines using special Image Processing techniques.

The process involves colour / contrast matching and feathering techniques to ensure a virtually seamless mosaic. Many images can be mosaicked and resampled to produce an overview image file to supplement the original orthoimages. Accuracy is measured by comparing the rectified position of ground control point to the true coordinates of the point.

At Eratost, we create Orthophoto with pixel size of 10cm, 20cm, 40cm. We work on RGB and Infra Red Imagery also.

Eratost Technologies has proven experience in providing services for orthophoto production and has successfully completed projects that require thermal imaging, RGB and CIR orthophotography, and black and white orthophotography. Orthophoto enables the exact calculation of planimetric distances with real representations of the measured land areas.

An orthophoto is an aerial photo in a color that has been geometrically and geographically corrected so that it overlaps in one plane. The production of orthophotography consists of correcting the distortions of the images caused by the relief of the floor surface.

Digital orthophotos are used as maps for visual identification, also in combination with other cartographic products such as DTM and contours.

In Eratost we generate a digital orthophoto that achieves the best possible resolution of the original aerial photo with a continuous color tone. Using special image processing techniques, we apply a variety of image enhancement and edge sharpening routines.

The process includes color/contrast and plumage combination techniques to ensure a practically perfect mosaic. Many images can be juxtaposed and rescanned to create a general image file that complements the original orthoimages. Accuracy is measured by comparing the ground position of the ground control point with the true coordinates of the point.

At Eratost Technologies Pvt. Ltd. we create orthophotos with a pixel size of 10 cm, 20 cm, 40 cm. We also work with RGB and infrared images.

  • Our Orthophoto Generation Services include
  • Multi-Image Fusion Sensor
  • Color balance and picture
  • Object-based image classification
  • Union Line Editor and Cut tiles

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