CROP ROWS GENERATOR (CRG) - QGIS PLUGIN

Version: 1.0

Steps to generate sugarcane Crop Rows

The following contains a steps to generate geospatial vector files of sugarcane crop rows with CRG - QGIS Plugin.

1

Spatial Data (TAB)

On this tab you must select the input spatial data to be processed.

1. Select the Raster Image File previously loaded on QGIS TOC.
2. Select Vector Mask File previously loaded on QGIS TOC.
3. Select Seed value according to crop rows orientation.

Horizontal pattern	Vertical pattern

Counterclockwise pattern	Clockwise pattern

4. Click on Run All Task button to perform the process.

2

Confirm Dialog (Mosaic Clip by Mask)

1. Once you Click on Run All Task button in the popup dialog you must be click on (yes/si) button.

Note: Mosaic clipping process can take a few minutes, even several hours dependes of the size of the Raster Mosaic and the complex shape of the vector mask file.

3

Confirm Dialog (Processing Task)

1. Click on (yes/si) button to perform the task.

Note: Crop Rows processing task can take a few minutes, even several hours dependes of the size of the Raster Mosaic and crop rows to detect. Also processing time may be affected by processing server where CROP ROWS-CLI is running.

4

Processing Status (TAB)

This tab will show the process of Crop Rows generation.

1. CROP ROWS-CLI standard output.
2. Status bar for Crop Rows generation process.

Note: Few minutes, even hours. This process can be take to complete.

5

Process finissed (Message Dialog)

Note: Once the process is complete, the resulting data will be loaded into the QGIS TOC.

6

Crop Rows Result

1. A new vector file named croprows_lines is loaded on QGIS TOC.
2. A new vector file named croprows_lines_buffer is loaded on QGIS TOC.
3. A new vector file named croprows_tiles is loaded on QGIS TOC.

Vector File (croprows_lines) (Spatial data)

1. Generated croprows_lines has the same reference system as the input data.
2. Each of the detected lines (Crop Rows) is an independent entity.

Vector File (croprows_lines) (Alphanumeric data)

1. Generated croprows_lines has related alphanumeric data.
2. Each one of the tuples is a detected lines (Crop Rows).

idg: unique line identifier.
crlen: length of detected line (meters).

Vector File (croprows_lines_buffer) (Spatial data)

1. Generated croprows_lines_buffer has the same reference system as the input data.
2. Each of the polygon is an independent entity.
3. Corresponds to an influence area of 0.60 cm for each detected crop row.

Vector File (croprows_tiles) (Spatial data)

1. Generated croprows_tiles has the same reference system as the input data.
2. Each one of the tile is an independent entity.
3. Each vector tile corresponds usually a processed tile of 20 m x 20 m.

Results in Export Folder

1. A generated croprows_wgs84.kml file with a assigned geographic reference system (WGS84/EPSG:4326) is located. File supported by Google Earth software.

2. A generated croprows_wgs84.shp file with a assigned geographic reference system (WGS84/EPSG:4326) is located. File supported by most of the auto-guidance computer panels.

CRG Configuration Parameters

1

1. Where CROP ROWS-CLI processing server is running (2767 port by default).
2. Where OSGeo4W binaries are installed on host machine.
(GDAL and OGR are mandatory requeriments)
See: https://trac.osgeo.org/osgeo4w/ for extra information.
3.Path to shared folder between host and processing server.
4.Click on Save Current Configuration button if changes are made.
5.No data value for Raster Mosaic clipper processing (-999 value by default).
6.Load results into QGIS data frame and TOC when processes are finished (checked by default).

CRG-QGIS PLUGIN is part of: AN AUTOMATIC CROP ROWS GENERATOR USING AERIAL HIGH-RESOLUTION IMAGES FOR PRECISION AGRICULTURE Master's Degree project.
Multimedia and Computer Vision Research Group (MMV-LAB)
Universidad del Valle / Santiago de Cali
Colombia - 2018