Digital Imaging

Digital image processing involves the manipulation and interpretation of digital images with the aid of computer. Digital imaging has become a mature engineering discipline. It is an extremely broad subject according to:

• the type of procedures used: from mathematically simple (enhancement, filter, etc) to mathematically complex (wavelet, neural network, etc);
• the type of applications, such as Remote Sensing or Photogrammetry, but also Biomedical Imagery, Industrial Vision, Robotics or Virtual Reality, and so on.

The possible forms of digital image manipulation are literally infinite, they are categorized according to the purpose of the operations: image restoration, image enhancement, image classification, image analysis, image reconstruction, data merging and GIS integration and, image transmission and compression.

In Geomatics engineering, digital imaging allows us to quantitavely analyse remotely sensed data (spaceborne or airborne data) to solve real-world problems according to the application, such as land cover mapping, environment monitoring or oceanography. It allows us also to create 3D model of the real-world.

 

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