Surveying Glossary — Letter O
Các thuật ngữ chính trong trắc địa chuyên nghiệp và công nghệ địa không gian.
Aerial photography or remote sensing data captured at an angle rather than directly vertical, providing a three-dimensional perspective of terrain and features.
Specialized surveying techniques and methodologies used to measure, map, and gather spatial data in marine and oceanic environments beyond coastal areas.
An optical instrument mounted on surveying equipment to precisely align the instrument's vertical axis with a point on the ground.
The vertical distance measured along the direction of gravity from a reference datum (typically mean sea level) to a point on Earth's surface.
The process of creating a geometrically corrected, seamless mosaic image from overlapping aerial photographs or drone imagery by removing perspective distortion and aligning images to a common coordinate system.
An aerial or satellite photograph that has been geometrically corrected to remove distortions and aligned to a map projection for accurate spatial measurements.
The area where two or more survey photographs, maps, or survey strips cover the same geographic region.