B-picture coding with motion-compensated frame rate upconversion

Hisao Sasai; Satoshi Kondo

doi:10.1117/12.586049

14 March 2005 B-picture coding with motion-compensated frame rate upconversion

Hisao Sasai, Satoshi Kondo

Proceedings Volume 5685, Image and Video Communications and Processing 2005; (2005) https://doi.org/10.1117/12.586049
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

In this paper, we propose a new method to improve the coding efficiency of B-pictures by applying the motion compensated frame rate up-conversion technique. In B-Picture coding in H.264, the direct mode is used for one of the prediction modes. In the direct mode, B-picture is constructed without transmitted motion vector information. Therefore the direct mode is the most effective coding mode in B-pictures. On the other hand, in motion compensated frame rate up-conversion technique, interpolated frames which are similar to B-pictures, can be constructed with the motion vectors by detecting motion between coded images. In our proposed method, the same motion estimation algorithm is used for detecting motion vectors between coded P-pictures in both of encoder side and decoder side. Therefore, our proposed decoder can use the detected motion vectors without transmitted motion vector information for B-picture coding. In the experiment, we selected prediction modes for each block by using conventional rate distortion optimization algorithm. The proposed method provides B-picture coding efficiency nearly 30% over than that of H.264.

Citation Download Citation

Hisao Sasai and Satoshi Kondo "B-picture coding with motion-compensated frame rate upconversion", Proc. SPIE 5685, Image and Video Communications and Processing 2005, (14 March 2005); https://doi.org/10.1117/12.586049

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