SBIR Phase I: Authentication of Mobile Video Recordings (MVRs) Based on Real-time Hybrid Digital Watermarking

Period of Performance: 01/01/2003 - 12/31/2003


Phase 1 SBIR

Recipient Firm

MY EZ Communications LLC
580 Lake Drive
Princeton, NJ 08540
Principal Investigator


This Small Business Innovation Research (SBIR) Phase I project is aimed at developing an authentication technology that enables the deployment of a digital Mobile Video Recordings (MVR) system. MVR data are collected daily by a very large fleet of patrol vehicles operated by the law enforcement community across the country that record events involving contact with civilians. Due to staggering costs associated with operating current analog, non-indexing systems, there is an overwhelming need for a computerized digital MVR technology. Its deployment, however, is hindered by legal acceptance, because a digital medium can be easily altered. Authentication plays a critical enabling role by providing an effective means to safeguard the integrity of MVR content. The objective of this research project is to develop a prototype for real-time MVR authentication software, based on a novel, hybrid watermarking algorithm, that integrates seamlessly with existing digital infrastructure. This algorithm is specifically designed to meet stringent operational requirements set forth by next generation MVR system. It achieves progressively varying robustness in one single watermark by means of error-correcting signature coding and rate-distortion guided bit embedding. It combines fragile watermark's ability to localize content tampering and robust watermark's ability to characterize the severity of content alteration.