1 / 16

Metadata Embedding in Compressed UAV Video via Digital Watermarking

Intelligent Ship Symposium VMonday, May 12, 2003. Acknowledgments. This work was supported in part by a grant from the US Air Force Office of Scientific Research. Predator video footage was provided by Mr. Scott Adams of the Air Force Research Lab, Rome, NY.. Intelligent Ship Symposium VMonday, May 12, 2003.

nayef
Download Presentation

Metadata Embedding in Compressed UAV Video via Digital Watermarking

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Intelligent Ship Symposium V Monday, May 12, 2003 Metadata Embedding in Compressed UAV Video via Digital Watermarking

    2. Intelligent Ship Symposium V Monday, May 12, 2003 Acknowledgments This work was supported in part by a grant from the US Air Force Office of Scientific Research. Predator video footage was provided by Mr. Scott Adams of the Air Force Research Lab, Rome, NY.

    3. Intelligent Ship Symposium V Monday, May 12, 2003 Objectives Define Watermarking Why Watermark? How to Watermark MPEG Introduction Metadata Embedding System Synchronization Metadata Viewer Application Demo

    4. Intelligent Ship Symposium V Monday, May 12, 2003 What is Watermarking? Ability to insert a signal into a separate carrier signal without adversely affecting the carrier signal’s perceptual transparency.

    5. Intelligent Ship Symposium V Monday, May 12, 2003 Watermarked Image Example

    6. Intelligent Ship Symposium V Monday, May 12, 2003 Why Watermark?

    7. Intelligent Ship Symposium V Monday, May 12, 2003 MPEG Introduction

    8. Intelligent Ship Symposium V Monday, May 12, 2003 Data hiding in label-carrying VLCs Compressed-Domain Scheme Frame data is encoded into MPEG bitstream using Variable-Length Codes. Subset of VLCs, Label-Carrying VLCs, have least significant bit modified to carry watermark.

    9. Intelligent Ship Symposium V Monday, May 12, 2003 Label-Carrying VLCs To classify as a LC-VLC pair, both VLCs must: Share a run-length Differ in level by one Have exactly the same bit-length

    10. Intelligent Ship Symposium V Monday, May 12, 2003 LC-VLC Example

    11. Intelligent Ship Symposium V Monday, May 12, 2003 Metadata Embedding System

    12. Intelligent Ship Symposium V Monday, May 12, 2003 Metadata Descriptive Information Date / Time Direction Location

    13. Intelligent Ship Symposium V Monday, May 12, 2003 Video – Metadata Synchronization Requirements Metadata sampling starts simultaneously with recording of video Metadata is sampled at a constant rate Result Video and metadata are concurrently displayed and maintain synchronization.

    14. Intelligent Ship Symposium V Monday, May 12, 2003 Metadata Viewer Application Concurrently display metadata & video Graphical User Interface (GUI) Abstract technical detail Easy-To-Use

    15. Intelligent Ship Symposium V Monday, May 12, 2003 Metadata Viewer Demo Predator UAV video (MPEG) & metadata provided by US Air Force Java-based Swing API for GUI Java Media Framework (JMF) for video Watermarking module coded in C

    16. Intelligent Ship Symposium V Monday, May 12, 2003 Summary Implemented LC-VLC Watermarking to insert metadata into Predator UAV MPEG video Created an application that abstracts watermarking tasks and extracts embedded data for simultaneous display with video

    17. Intelligent Ship Symposium V Monday, May 12, 2003 Future Work Going beyond proof of concept… Integrating operational factors secure embedding frame content metadata using MPEG-4 lossless embedding controlled access to video based on viewer clearance

More Related