Wang & EF Tan Associates

Consulting & Registered Surveyors



Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to in situ observation.


It generally refers to the use of aerial sensor technologies to detect and classify objects on Earth (both on the surface, and in the atmosphere and oceans) by means of propagated signals (e.g. electromagnetic radiation). It may be split into active remote sensing, when a signal is first emitted from aircraft or satellites) or passive (e.g. sunlight) when information is merely recorded.

Images collected in remote sensing can be from laser scanners , Aerial Lidar or Photogrammetry. The images can be analyse for various usage such as forest fires, environmental studies etc.

Please Contact us if you require further information