Preprocessing of video for compression

Rajesh Rajagopalan; Michael T. Orchard

doi:10.1117/12.263205

10 January 1997 Preprocessing of video for compression

Rajesh Rajagopalan, Michael T. Orchard

Proceedings Volume 3024, Visual Communications and Image Processing '97; (1997) https://doi.org/10.1117/12.263205
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

This paper addresses the issue of introducing information loss in a video sequence prior to coding with the objective of maintaining visual quality while lowering the bit rate required to code the video. We argue that managing perceptually meaningful information if better accomplished in the motion domain rather than the pixel intensity domain. Based on recent advances in motion estimation and modeling, we introduce a representation of video data using motion information wherein every frame of a sequence is replaced with a field of interframe correspondences. Knowledge of the previous frame along with the filed of interframe correspondences is sufficient to reconstruct the current frame. Preprocessing is accomplished by filtering interframe correspondences and generating processed video using the filtered correspondence field. Simulations using the MPEG video coding standard reveal that rate gains of up to 20 percent are possible when filtering such that the processed and original video are of similar visual quality.

Citation Download Citation

Rajesh Rajagopalan and Michael T. Orchard "Preprocessing of video for compression", Proc. SPIE 3024, Visual Communications and Image Processing '97, (10 January 1997); https://doi.org/10.1117/12.263205

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