1. AGIC 90 Minute Hands on Session
Presented by: Noah Ruiz - Skynetwest Unmanned Aerial Systems Service Provider Bill Stull – Branco Machinery Unmanned Aerial Systems Retail

2. Introduction Flight planning Risk Assessment Overview of process
Processing of Data Set
Table of Contents

3. Design Flight plan with Asctec Navigator
There are many different software platforms to use to obtain the same objective

4. We then build matrix of waypoints

5. The design we used for our processing project

6. You can now connect or export to sUAS
Apply parameters
You can now connect or export to sUAS

7. Risk Assessment Process
Can be found within
Advisory Circular Appendix A
ia/AC_107-2_AFS- 1_Signed.pdf

8. Overview
Generally the final goal of processing is to build a textured 3D model. The procedure of processing and 3D model construction comprises of four main stages.
1. Camera Alignment
At this stage PhotoScan searches for common points on photographs and matches them, as well as finds the position of the camera for each picture and refines camera calibration parameters. As a result a sparse point cloud and a set of camera positions are formed.
2. Dense Point Cloud
Based on the estimated camera positions and pictures themselves a dense point cloud is built by PhotoScan. The dense point cloud may be edited and classified prior to export or proceeding to 3D mesh model generation.
3. Mesh
PhotoScan reconstructs a 3D polygonal mesh representing the object surface based on the dense or sparse point cloud according to the user's choice.
4. Orthomosaic
After geometry (i.e. mesh) is reconstructed, it can be textured and/or used for orthomosaic generation.

9. Lets Start Processing! Find workflow tab at top of window
Drop down menu will show “Add Photos”
Click add Photos and find folder that’s labeled
“AGIC Work Session Photos”
 Hold Ctrl, and press A to select all and click Open

10. After we add photos, we are going to want to save it as a PSX file
After we add photos, we are going to want to save it as a PSX file. We need to do this to build an Orthomosaic photo. Click File, Save As, ensure “Save as Type” is PhotoScan Project (*.psx)
.psx allows us to Build and Export and Orthomosaic Image

11. After Photos have been added, under workflow, Click Align Photos and choose Medium Accuracy
What is the difference between low, medium, high?
When aligning the photos the camera positions are estimated. Setting the accuracy to High will give more accurate camera positions. A low setting will give rough, less accurate positions

12. After Photos have been aligned, under workflow, Click Build Dense Cloud, choose medium Quality
High quality will provide more detail and accuracy but requires longer processing times

13. After Dense Cloud has been Built, under workflow, Click Build mesh
After Dense Cloud has been Built, under workflow, Click Build mesh. Follow parameters.
Surface Type: Height Field
Source Data: Dense Cloud
Face Count: Match count to CAD software limitations
Interpolation: Enabled
Point Classes – Specify the classes in which to build the mesh from
Calculate Vertex Colors: Checked

14. After Mesh has been built, under workflow, click Build Texture
After Mesh has been built, under workflow, click Build Texture. Follow parameters.
Mapping mode: Generic, Blending mode: Mosaic, Texture size/count (generated), Enable color correction: only check if needed, Enable hole filling: check

15. After Texture has been overlaid, click Build Orthomosaic, follow parameters
Projection: Geographic
Surface: Mesh
Blending Mode: Mosaic
Enable Color Correction: Only check if needed
Pixel Size: Checked by default

16. Click File/Export Ortho, Save under parameters below with selected name

17. Navigate to saved TiFF File Location, and open file in picture Viewer.
You can navigate the photo,
zoom in and out

18. Thank you for participating in the Workshop!
Bill Stull
Branco Machinery
Thank you for participating in the Workshop!
Noah Ruiz
Skynetwest