Feature Extraction with eCognition Developer : The case of Oil Palm Tree

2. eCognition Developer
● Is Designed to improve, accelarate and automate the interpretation of geospatial data
● Is a development environment for object-based image analysis used for the automatic analysis of
remote sensing data
● Enable users to design feature extraction and / or change detection solutions to transform geospatial
data to geo information
● Is A software to analyse raster, vector and point cloud data
● can be applied for all common remote sensing tasks such as vegetation mapping, feature extraction,
change detection and object recognition

3. What is Feature Extraction?
● Is the process to
represent raw image ( or
transforming the input
data) in a reduced form
(or a set of features) to
facilitate decision making
such as pattern detection,
classification or
recognition.
● is a process for extracting
relevant information from
an image

4. How eCognition Developer works?
It is an Object based image Analysis (OBIA).
In GeOBIA or Geographic OBIA, pixels are grouped in homogeneous objects associated by statistic
(spatial, spectral and texture) which can be used to classify them (characterization, segmentation and
classification)
Image Segmentation

5. - Develop set of rules
- Combine, modify and calibrate
rules set
- Process Data
- Execute and monitor analysis
- Review, edit and export
results
How eCognition Developer works?

6. Practical case : Let's Start with eCognition Developer

7. eCognition Workflow

8. Application: Create a new project

9. 2. Template editor and select samples data
Generate template and search the sample correlation of each layer

10. 3. Test template : Template Editor
A. Select the region
B. Take the Layer with which you want to
test your Thereshold cofficient
C. Update the template and execute the
test
D. Check for correct and false template
E. Go to select sample to update sample
data

11. 4. Create a new process

12. 5. The template matching
A. Select the folder
containing the test
layer
B. Update the
threshold value
C. Take ‘template
matching’
algorithm
D. Execute the test

13. 6. Vector Layer Mixing
In vector layer mixing
select show

14. 7. Update Process tree
Reduce Thereshold value
accordingly and reexecute the
process
Visualy see the update (or go
back to vector layer mixing and
select ‘show’ with the color you
want )