Summary: FRAME INTERPOLATION USING TRANSMITTED BLOCK­BASED MOTION VECTORS
Seung­Chul Yoon and Narendra Ahuja
Department of Electrical and Computer Engineering
Beckman Institute for Advanced Science and Technology
University of Illinois, Urbana, IL 61801
scyoon@vision.ai.uiuc.edu
ABSTRACT
The proposed technique is designed for interpolating video
frames often dropped during compression using standards,
such as MPEG­4 and H.263 at very low bit rates. The coarse
motion vector field is refined at the receiving side using
mesh­based motion estimation instead of using computa­
tionally intensive dense motion estimation. We propose a
framework for detecting and utilizing local motion bound­
aries in terms of an explicit model. Motion boundaries are
modeled using edge detection and Hough transform. The
motion of the occluding side is represented by affine map­
ping. The newly appearing region is also detected. Each
pixel is interpolated differently according to adaptive inter­
polation based on the property of the pixel: moving, static,

Source: Ahuja, Narendra - Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign

Collections: Computer Technologies and Information Sciences; Engineering