Lecturer In Charge: Prof Qiming Zhou

Objectives

• Introduce basic concepts to the interpretation and measurement of objects on aerial photographs. Consideration is given to the types of film available, typical key elements used in photo interpretation and the procedures for calculating the size of objects in distance.
• Present the physical basis of remote sensing and the technology to measure spectral, spatial and/or temporal variations in field strength.
• Stress is placed on laboratory work to ensure familiarity in using computer software to process, restore, enhance and interpret of imagery acquired from satellites.

Remote sensing is defined as the science of acquiring information about material objects without being in touch with them. These measurements are possible because sensors or instruments are designed to measure the reflected light from earth objects. It is discovered that each kind of earth materials has its own spectral characteristics, which enable us to discern the objects from its intermixed background. This subject introduces students the basic concepts and skills of remote sensing technology. The principle of remote sensing is introduced first, followed by the review of available remote sensing systems including airborne and space-borne platform and sensors. Techniques of image interpretation and computer processing of digital satellite images are also practised.

Assessment

Coursework will consist of laboratory work and tutorials that provide an opportunity for students to become familiar to techniques of image interpretation and processing. The image processing exercises will be undertaken using the PCI image processing software ¨C one of the most advanced and widely used in Hong Kong. The laboratory work will focus on four categories of techniques ¨C image display, restoration, enhancement and information extraction. Tutorials will also be used for exercises on photo interpretation, measurement and accuracy assessment.

Teaching methods/Approach to Learning

Lectures, labs and tutorials are the major means of teaching, supplemented by a field excursion.