P16551: Observer Calibrator
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Customer Handoff & Final Project Documentation

Table of Contents

Team Vision for Final Demo and Handoff

This page holds the final documentation for the observer calibrator. Below is our customer, Dr. Fairchild, with the Observer Calibrator during the final handoff.

Dr. Fairchild, with the Final Observer Calibrator

Dr. Fairchild, with the Final Observer Calibrator

Test Results Summary

The two images below show spectral power graphs of each of the LED sets. Both the original, unmixed colors and some mixed colors are shown, where the mixed colors are created by the combination of various LED primaries.

Spectral Power Curves of Left LED Set, with Mixed Colors Included

Spectral Power Curves of Left LED Set, with Mixed Colors Included

Spectral Power Curves of Right LED Set, with Mixed Colors Included

Spectral Power Curves of Right LED Set, with Mixed Colors Included

The final OC, with one integrating sphere removed for demonstration, can be seen below.

The Inside of the Observer Calibrator, with one Integrating Sphere Removed

The Inside of the Observer Calibrator, with one Integrating Sphere Removed

The stability of the luminance over time was measured by taking several measurements of luminance. The results are shown below.

Chart Tracking Stability of Luminance over Multiple Measurements

Chart Tracking Stability of Luminance over Multiple Measurements

Risk and Problem Tracking

Our risk assessment document tracks risks we identified during the beginning of MSD and is continually updated as the likelihood of risks changes and as more risks are identified. Nearly all the risks are driven to zero at this point. Our customer has stated that the LEDs are bright enough, and was impressed with the final result. The user interface was simple enough, and the researcher interface remains fully customizable through MATLAB. The only remaining risk is in dropping or damaging the OC through transport. Though the system is robust, this always remains a risk for the product.

Final Risk Assessment

Final Risk Assessment

Our problem tracking document lists issues that have arisen during the design of the Observer Calibrator, marks our solutions to these issues, and identifies the path to ensuring the problem is solved. No issues arose during this phase, so the status is unchanged; all problems have been solved.

Current Problem Tracking Document

Current Problem Tracking Document

Final Project Documentation

Our final technical paper was submitted to the 29th Annual Electronic Imaging Symposium. The paper can be found here.

Our poster hangs in the hall of the Program of Color Science, and can be seen here.

Our final Bill of Materials can be found here.

Documentation for using and maintaining the Observer Calibrator is provided here.

In the paper, we recommend the following for future work efforts:

Plans for Wrap-up

As of the customer handoff phase, only some light cleanup work remains. Ben will be making a cover for the observer's push button, and solidifying the integrating sphere mounting. One of the team members may be present at the Electronic Imaging Conference in 2017, to present our work.

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