What are elements of remote sensing and aerial photographs?
What are elements of remote sensing and aerial photographs?
The interpretation of satellite imagery and aerial photographs involves the study of various basic characters of an object with reference to spectral bands which is useful in visual analysis. The basic elements are shape, size, pattern, tone, texture, shadows, location, association and resolution.
What are the components of aerial photography?
The major components of an aerial camera are : Lens, lens cone, shutter and diaphragm, camera body, drive mechanism, film magazine, focal plane and film flattening device (Fig. 5.). The lens should be distortion-free and of high resolution.
What are the elements of image?
They are basic ingredients in an image, which are used in certain proportion to create a specific “recipe” of an image. These elements are shape, size, form, texture, pattern, line, perspective, shadow, tone, color, contrast, positive space and negative space.
What are the elements of visual interpretation?
Elements of Visual Interpretation
- Tone refers to the relative brightness or colour of objects in an image.
- Shape refers to the general form, structure, or outline of individual objects.
- Size of objects in an image is a function of scale.
- Pattern refers to the spatial arrangement of visibly discernible objects.
How many elements are required for visual image interpretation?
The eight interpretation elements are: size, shape, shadow, tone, colour, texture, pattern, and association.
What are the principles of aerial remote sensing?
Remote sensing uses a part or several parts of the electromagnetic spectrum. It records the electromagnetic energy reflected or emitted by the earth’s surface. The amount of radiation from an object (called radiance) is influenced by both the properties of the object and the radiation hitting the object (irradiance).
What is aerial remote sensing?
Aerial Remote Sensing Photography has been defined as the science of taking a photograph from a point from the satellite for the purpose of making some type of the study of the surface of the earth. The Radar imagery is obtained by collecting and measuring the reflection of pulses sent out from aircraft or satellite.
What is photo interpretation in remote sensing?
Method Overview. Image interpretation is the process of examining an aerial photo or digital remote sensing image and manually identifying the features in that image.
What are the stages in remote sensing?
(i) Origin of electromagnetic energy (e.g. sun, transmitter carried by the sensor). (ii) Transmission of energy from the source to the surface of the earth and its subsequent interaction with intervening atmosphere. (iii) Interaction between energy and earth surface or self-emission.
