Getting Started

GIANT is an API for performing many different types of optical navigation quickly and easily. It provides high level classes that perform the most common OpNav tasks with little user involvement, while still making many of the lower level calls easily accessible to allow for more advanced techniques to be quickly built. This tutorial will introduce you to the basic user-level interface for GIANT. Walk through the following sections in order to see what its about (use can use the navigation bars at the top/bottom of each page to move through the tutorial).

• Organization
• Initial Set-up
  • Customizing GIANT for DAWN
  • Defining Our Imports
  • Subclassing OpNavImage
  • Subclassing the Camera Class
  • Defining Functions to Return State Information
  • Installing dawn_giant
  • The Full dawn_giant File
• Acquiring Data for the Tutorial
• Performing Camera Calibration
  • Initial Imports
  • Initializing Our Camera Model
  • Defining a Meta Kernel
  • Loading the Images and Creating the Camera Instance
  • Creating the Calibration Object
  • Identifying Stars in an Image
  • Performing Calibration
  • Viewing the Calibration Results
  • Saving the Solved for Camera Model
  • The Full FC2 Calibration Script
• Performing Optical Navigation
  • Initial Imports
  • Loading the Data
  • Loading the Images and Creating the Camera Instance
  • Estimating the Rotation Using Star Images
  • Updating the Short Exposure Image Rotation
  • Defining the OpNav Scene
  • Creating the RelNav Instance and extracting the observables
  • The Complete OpNav Script
• Conclusion