High Resolution Orthoimagery Collection – Historical
Description
'High resolution orthorectified images combine the image characteristics of an aerial photograph with the geometric qualities of a map. An orthoimage is a uniform-scale image where corrections have been made for feature displacement such as building tilt and for scale variations caused by terrain relief, sensor geometry, and camera tilt. A mathematical equation based on ground control points, sensor calibration information, and a digital elevation model is applied to each pixel to rectify the image to obtain the geometric qualities of a map.
A digital orthoimage may be created from several photographs mosaicked to form the final image. The source imagery may be black-and-white, natural color, color infrared, or color near infrared (4-band) with a pixel resolution of 1-meter or finer. With orthoimagery, the resolution refers to the distance on the ground represented by each pixel.
'
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.EROS5e83a2397d63a400.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/F73X84W6 |
Tags
- photographs
- black-and-white
- national-geospatial-data-asset
- high-resolution-orthoimagery
- color-near-infrared
- aerial-photography
- usgs-eros5e83a2397d63a400
- ngda
- georeferenced
- ngda-imagery-theme
- ngdaid187
- color-infrared
- natural-color
- orthorectified