Mr. Geoff M. Miller Profile

Geoff M. Miller

Manager, Engineering and Business at PVP Advanced EO Systems Inc

SPIE Involvement:

Author

Publications (4)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 5 May 2009 Paper

Wide field-of-view target detection and simultaneous narrow field of view target analysis

Richard Nichols, Geoffrey Miller

Proceedings Volume 7305, 73050F (2009) https://doi.org/10.1117/12.819085

KEYWORDS: Target detection, Scanners, Surveillance, Sensors, Infrared detectors, Target recognition, Objectives, Motion detection, Visible radiation, Scintillation

Read Abstract +

Protecting national borders, military and industrial complexes, national Infrastructure and high-value targets is critical to national security. Traditional solutions use a combination of ground surveillance radar, motion detection systems and video surveillance systems. Our development objective was to provide wide area 360-degree surveillance and ground-moving target detection using a passive optical system. In order to meet this objective, the development of an optical system capable of wide-area surveillance with intelligent cueing, high-resolution tracking and target identification is required. The predominant approach to optical surveillance has traditionally been gimbaled narrow field-of-view systems. These systems miss the majority of events occurring around them because of their inability to focus on anything other than a single event or object at any one time. Details of the system requirements definition, design trade studies and selected design configurations are discussed. The experimental results obtained during the current development phase have provided consistently high quality images and enhanced situational awareness. A summary of field validation methods and results is provided.

Proceedings Article | 23 January 2003 Paper

Airborne infrared thermography

Geoffrey Miller

Proceedings Volume 4820, (2003) https://doi.org/10.1117/12.450883

KEYWORDS: Sensors, Thermography, Imaging systems, Infrared imaging, Cameras, Digital recording, Visualization, Mirrors, Data acquisition, Radiation thermography

Read Abstract +

To explore the feasibility of utilizing an IR imaging system to support flow visualization studies, an initial series of tests were conducted using an AN/AAS-38, NITE Hawk targeting pod. The targeting pod, installed on the left side of an F/A-18 aircraft provides a stabilized infrared imaging capability in the 8-12 micron spectral band. Initial data acquired with system indicated that IR thermography was a very promising tool for flow visualization. For the next phase of the investigation, an advanced version of the NITE Hawk targeting pod equipped with a staring 3-5 micron sensor was utilized. Experimental results obtained with this sensor indicated improved sensitivity and resolution. This method was limited to position the experiment and chase aircraft sufficiently close to each other and with the sightline angle required to acquire the region of interest. For the current phase of the investigation, the proven 3-5 micron staring sensor was deployed in an externally mounted podlet, located on the experimental aircraft with a fixed line of sight, centered on the region of interest. Based on initial data collection efforts, this approach appears to provide consistent high quality data for a wide range of flight conditions. To minimize the size of the podlet and resultant drag, the sensor was oriented parallel to the air flow. This also placed the line of sight parallel to the experiment. A fold mirror was incorporated in the design to fold the line of sight inboard and down to center on the region of interest. The experimental results obtained during the current test phase have provided consistently high quality images clearly mapping regions of laminar and turbulent flow. Several examples of these images and further details of the experimental approach are presented.

Proceedings Article | 23 January 2003 Paper

Dual-field-of-view tracking lens system

Geoffrey Miller

Proceedings Volume 4820, (2003) https://doi.org/10.1117/12.450914

KEYWORDS: Mirrors, Switches, Video, Cameras, Video surveillance, Objectives, Optical tracking, System integration, Optical design, Image processing

Read Abstract +

Many target-tracking applications require an optical system to acquire the target in a wide field of view and then switch to a narrow field of view for tracking, and identification. This process is complicated by the time required, and the resulting loss of image data during the FOV switch. The objective of the investigation was to develop a dual field of view infrared lens system that could accomplish the FOV switch without the loss of any image data. The design was based on achieving this requirement with the lens system integrated with a range of commercially available mid wave infrared cameras. The results of trade studies and evaluation of user mission profiles, resulted in a system with 100mm and 500mm focal lengths, with a field of view switch within one frame period. The FOV switch was further required to coordinate with the frame synchronization timing to eliminate any loss of data during the FOV change. The requirements also specified a fully integrated system housed in a sealed enclosure that would support extended field deployment in a military environment with no maintenance. Presented herein are details of the design trade studies and specification development, highlights of the resulting optical design with a discussion of the optimization methods employed. Also included are details of the packaging challenges and solutions and sample performance data collected from successful field tests of the first two prototype units.

Proceedings Article | 20 March 1998 Paper

Beyond third generation: a sensor-fusion targeting FLIR pod for the F/A-18

William Krebs, Dean Scribner, Geoffrey Miller, James Ogawa, Jonathon Schuler

Proceedings Volume 3376, (1998) https://doi.org/10.1117/12.303673

KEYWORDS: Sensors, Infrared radiation, Target detection, Infrared imaging, Sensor fusion, Forward looking infrared, Image fusion, Infrared sensors, Situational awareness sensors, Visible radiation

Read Abstract +

The Navy and Marine Corps F/A-18 pilots state that the targeting FLIR system does not provide enough target definition and clarity. As a result, high altitude tactics missions are the most difficult due to the limited amount of time available to identify the target. If the targeting FLIR system had a better stand-off range and an improved target contrast then the pilots' task would be easier. Unfortunately, the replacement cost of the existing FLIR equipment is prohibitive. The purpose of this study is to modify the existing F/A-18 targeting FLIR system with a dual-band color sensor to improve target contrast and stand- off ranges. Methods: A non-real-time color sensor fusion system was flown on a NASA F/A-18 in a NITE Hawk targeting FLIR pod. Flight videotape was recorded from a third generation image intensified CCD and a first generation long-wave infrared sensor. A standard visual search task was used to assess whether pilots' situational awareness was improved by combining the two sensor videotape sequences into a single fused color or grayscale representation. Results: Fleet aviators showed that color fusion improved target detection, but hindered situational awareness. Aviators reported the lack of color constancy caused the scene to be unaesthetically pleasing; however, target detection was enhanced. Conclusion: A color fusion scene may benefit targeting applications but hinder situational awareness.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years