Image intrepretation

2,302 views 20 slides Sep 05, 2020
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About This Presentation

IMAGE INTERPRETATION
Act of examining images to identify objects and judge their significance.
Information extraction process from the images.
An interpreter is a specialist trained in study of photography or imagery, in addition to his own discipline.
Aerial photographs and remote Sensing images ...


Slide Content

SUBJECT : REMOTE SENSING AND GIS APPLICATION. SUBMITTED TO : DR. SHABIR AHMAD BANGROO SAQIB RASHID BHAT (2016-222) FARHAT FAROOQ SOFI (2016-233) RASHID MOHAMMAD MIR (2016-237)

IMAGE INTERPRETATION

cONTENTS

IMAGE INTERPRETATION Act of examining images to identify objects and judge their significance. Information extraction process from the images. An interpreter is a specialist trained in study of photography or imagery, in addition to his own discipline. Aerial photographs and remote Sensing images employ electro magnetic energy as the mean of detecting and measuring target characteristics. Involves a considerable amount of subjective judgment. Highly dependent on capability of mind to generalize. Takes place at different levels of complexity.

IMAGE INTERPRETATION Image is a pictorial representation of an object or a scene. Image can be analog or digital. Aerial photographs are generally analog, while satellite data is in digital form. A digital image is made up of square or rectangular areas called pixels. Each pixel has an associated pixel value which depends on the amount reflected energy from the ground.

task of image interpretation

General procedure for photo interpretation

Methods of Image Interpretation Visual 1. Visual image interpretation on a hardcopy image/photograph 2. Visual image interpretation on a digital image Digital image processing

Typical Examples of Image Interpretation

Basic Principle of Image Interpretation Image is a pictorial representation of pattern of landscape. Pattern indicates type of objects and their physical, biological, and cultural relationships. Similar objects under similar conditions reflect similarly. A systematic examination of photos and supporting material. Interpretation is made of physical nature of the object. Information extracted is proportional to knowledge, skill and experience of analyst; the methods and equipment used.

Factors governing interpretability Training, Experience. Nature of object or phenomenon. Quality of photographs. Equipment and method of interpretation. Interpretation keys, guides, manuals and other aids. Prior knowledge of the area.

Types of interpretation Qualitative Quantitative

Interpretation elements