Question
Describe the steps involved in object based image analysis.
Answer :
Word Count : 522
_____ ________ ___ ____ ________ ___ _____ _____ _________ ______ _____ ____.
______ _________ ___ __________ __________ _____ _____ __________ ______ ________ ______ _______.
__________ _________ ________ ______ _________ ________ ___ _________ ______.
____ ___ ________ _______ __________ _________.
__________ ________ _________ _________ __________ _________ ______ ____ ___ _____ __________ _________.
_____ ___ __________ ___ _______.
_______ _______ _____ _____ ______ __________ _______ _______ __________ _______.
________ _________ ________ ___ _______ __________ ______ _____ ___ ________ _______ _____.
_________ _________ ___ ___ ________ ________ __________ __________.
_________ _________ _____ _______ _____ __________ ___ _______.
________ ________ __________ ____ ___ _________ _______ _______ ________ ________.
________ ____ _________ ___ ______ __________ ______ _____ ________ _____ _________.
______ __________ ___ ________ __________ ____ ___.
_______ _______ ___ ___ _______ ____ ________ ________ ______ ______ ____ ___.
_______ _____ _____ ________ _____ ____.
____ ____ ___ _____ ______ ______.
____ ___ _________ ______ ______ _______.
___ ________ ________ ______ ________ _____.
_________ __________ _____ _________ ______.
___ _________ _____ _______ ____ ____ ___ _________.
__________ ____ _______ ______ _________ _________ __________ ________ _____.
__________ _____ _________ _________ _______ ___ ______ ________.
____ ________ _______ ______ ___ ______ __________ ___ _______ __________ _______.
_____ _____ _____ ______ _______ ______ ___.
_________ _____ ________ ______ ________ _________ __________ ________ ____.
____ ________ _______ ________ _____ _______.
_______ ________ _____ ________ ______ ______ __________ _______ _____ ______.
_______ ________ ________ ___ ______ _________ _______ ____ _______ ____ ____ ______.
________ ____ ___ ______ _______.
_________ ______ __________ _________ ____ ________ _______ _____ _____ _______.
______ ______ ___ _______ ________ _______.
__________ _______ _____ ____ __________.
________ _________ _____ _________ ______ ______ _______ ____ __________.
__________ __________ _________ _______ ______ _______ __________ ______ ___.
_______ __________ _______ ________ ________ ___ _____ ______ ____ ________ _____.
___ ________ _______ ________ _________ ___ ___ ____ ______.
_____ _____ __________ _____ ___ ____ _______.
___ _____ ____ _________ ___ ________ ______ __________ _____ __________ _____.
_________ _________ ____ _________ ___.
________ ________ _____ ________ _____ _________ __________ ___ _______ _________.
__________ ______ ________ ___ ______ _________.
____ ___ ________ ______ ________ _______ _____ ________ ___.
_____ __________ ______ __________ _______.
Skip in 10
Object-Based Image Analysis (OBIA) represents a significant advancement in remote sensing and GIS, moving beyond traditional pixel-based classification to a more context-aware, object-oriented approach. The methodology focuses on grouping pixels into meaningful objects based on both spectral and spatial characteristics, allowing more accurate and interpretable land cover mapping. The process of OBIA generally involves several systematic steps. The first step is image acquisition and preprocessing. High-resolution remotely sensed data, such as multispectral or hyperspectral imagery, are collected. Preprocessing ensures that the data is suitable for analysis, which may include radiometric correction to remove sensor noise, geometric correction to align images accurately with ground coordinates, and atmospheric correction to eliminate distortions caused by atmospheric particles. This step is crucial as errors at this stage can propagate throughout the analysis. The second step is segmentation, which is the core of OBIA. In segmentation, the image is divided into homogeneous regions, called image objects,
______ _______ ___ ____ ______ ___ __________ __________ ____ ______ __________._____ ________ ___ ____ ________ ___ _____ _____ _________ ______ _____ ____.
______ _________ ___ __________ __________ _____ _____ __________ ______ ________ ______ _______.
__________ _________ ________ ______ _________ ________ ___ _________ ______.
____ ___ ________ _______ __________ _________.
__________ ________ _________ _________ __________ _________ ______ ____ ___ _____ __________ _________.
_____ ___ __________ ___ _______.
_______ _______ _____ _____ ______ __________ _______ _______ __________ _______.
________ _________ ________ ___ _______ __________ ______ _____ ___ ________ _______ _____.
_________ _________ ___ ___ ________ ________ __________ __________.
_________ _________ _____ _______ _____ __________ ___ _______.
________ ________ __________ ____ ___ _________ _______ _______ ________ ________.
________ ____ _________ ___ ______ __________ ______ _____ ________ _____ _________.
______ __________ ___ ________ __________ ____ ___.
_______ _______ ___ ___ _______ ____ ________ ________ ______ ______ ____ ___.
_______ _____ _____ ________ _____ ____.
____ ____ ___ _____ ______ ______.
____ ___ _________ ______ ______ _______.
___ ________ ________ ______ ________ _____.
_________ __________ _____ _________ ______.
___ _________ _____ _______ ____ ____ ___ _________.
__________ ____ _______ ______ _________ _________ __________ ________ _____.
__________ _____ _________ _________ _______ ___ ______ ________.
____ ________ _______ ______ ___ ______ __________ ___ _______ __________ _______.
_____ _____ _____ ______ _______ ______ ___.
_________ _____ ________ ______ ________ _________ __________ ________ ____.
____ ________ _______ ________ _____ _______.
_______ ________ _____ ________ ______ ______ __________ _______ _____ ______.
_______ ________ ________ ___ ______ _________ _______ ____ _______ ____ ____ ______.
________ ____ ___ ______ _______.
_________ ______ __________ _________ ____ ________ _______ _____ _____ _______.
______ ______ ___ _______ ________ _______.
__________ _______ _____ ____ __________.
________ _________ _____ _________ ______ ______ _______ ____ __________.
__________ __________ _________ _______ ______ _______ __________ ______ ___.
_______ __________ _______ ________ ________ ___ _____ ______ ____ ________ _____.
___ ________ _______ ________ _________ ___ ___ ____ ______.
_____ _____ __________ _____ ___ ____ _______.
___ _____ ____ _________ ___ ________ ______ __________ _____ __________ _____.
_________ _________ ____ _________ ___.
________ ________ _____ ________ _____ _________ __________ ___ _______ _________.
__________ ______ ________ ___ ______ _________.
____ ___ ________ ______ ________ _______ _____ ________ ___.
_____ __________ ______ __________ _______.
IGNOU ACADEMY
Your IGNOU journey, made easier.
- Solved Assignments
- Study Notes
- Guess Papers
- Question Papers
Continue Reading — It's Free
Sign in with Google to unlock more of this answer.
✓ Free access
✓ Unlock up to 60% of the answer
✓ No payment required
✓ Unlock up to 60% of the answer
✓ No payment required
Quick Google sign-in. No separate registration form.