Redundancy analysis of raw Geiger-mode laser radar data

Norman A. Lopez; Gary W. Kamerman

doi:10.1117/12.854711

4 May 2010 Redundancy analysis of raw Geiger-mode laser radar data

Norman A. Lopez, Gary W. Kamerman

Proceedings Volume 7684, Laser Radar Technology and Applications XV; 76840P (2010) https://doi.org/10.1117/12.854711
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

In the past decade arrays of Geiger-mode Avalanche Photodiode (GmAPD) detectors have increased in size from 4×4 to 128×32, resulting in significant increases in data rates. If not handled appropriately, data collected with larger arrays and higher laser pulse repetition frequencies could potentially stress existing data dissemination and storage infrastructures. Data compression techniques that reduce storage requirements by taking advantage of data redundancies could be used to mitigate this problem. In this paper we present an analysis of the coding redundancy that exists in raw data captured with three dimensional imaging laser radar systems that employ arrays of Geiger-mode Avalanche Photodiode (GmAPD) detectors. The data we analyzed was collected in three different scanning modes, namely: mapping-mode, target-mode and stare-mode. We found that there is a significant amount of coding redundancy in raw GmAPD data which can be used to minimize storage sizes. We demonstrate that a trivial and simple approach reduces data for some scan patterns. This work represents a first step towards developing robust compression algorithms for raw GmAPD data. We present considerations for future work.

Citation Download Citation

Norman A. Lopez and Gary W. Kamerman "Redundancy analysis of raw Geiger-mode laser radar data", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 76840P (4 May 2010); https://doi.org/10.1117/12.854711

ACCESS THE FULL ARTICLE

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