ESRI USER CONFERENCEONE THING I LEARNED

AT THE CONFERENCE

Melody BaldwinDivision of Environmental Services

PLENARY MONDAYSouthwest Florida Water Management District

Three different projects using the ESRI Analytical tools

Classification of vegetation using imagery

Segmentation and Classification

http://video.esri.com/watch/4650/southwest-florida-water-management-district

Minute 9:20 through 9:41

Segmentation and ClassificationReference Material

Understanding Segmentation and Classification https://

desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/understanding-segmentation-and-classification.htm#GUID-9DC0D87F-0814-4AD6-B6BE-E68CC23E412B

Compute Segment Attributes https://

desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/compute-segment-attributes.htm

What is image Classification? https://

desktop.arcgis.com/en/desktop/latest/guide-books/extensions/spatial-analyst/image-classification/what-is-image-classification-.htm

Segmentation and ClassificationDefined as tools that will

Extract features from imagery

Create image segmentation Where pixels share the same spectral

characteristics

The objects are grouped into classes

Image classification can be preformed on pixel imagery

Segmentation and ClassificationExtraction process covers three main

functional areas

Image segmentation – pixels are grouped

Analytical information – segments grouped into objects

Classification – represented by a set of attributes

Segmentation and ClassificationContacted Southwest Florida Water

Sent the how to sheet and I have stored it:

\\nasdes\Shared\GIS_Enterprise\How_To_Folder\Segmentation_and_Classification

Segmentation and ClassificationPDF from Southwest Florida Water Management DRAFT/Provisional Segmentation Classification Work Flow Requires 10.3 Spatial Analyst License and Segment Tool option only in 10.3.1 TIP: More training better results TIP: for large areas, such as satellite imagery parcel into vertical strips, clip to 1 km areas. Step 1: A. Bring in the image, TIP: “what you see is what you get” so, how the image is displayed on screen is what the tool has to work with so, B. Go To Image Analysis under Windows Tab, you can

Segmentation and ClassificationIdentify vegetation that you are tracking

Use aerial and tools to delineate the area

End result is the acreage of the vegetation you are studying on a specific date

You can then use the time slider and see if the vegetation is growing or decreasing

Segmentation and ClassificationQuestion please contact

Melody Baldwin916.376.9806Melody.baldwin@water.ca.gov