TY - JOUR
T1 - Motion-compensated frame interpolation using bilateral motion estimation and adaptive overlapped block motion compensation
AU - Choi, Byeong Doo
AU - Han, Jong Woo
AU - Kim, Chang-Su
AU - Ko, Sung-Jea
N1 - Funding Information:
Manuscript received May 26, 2006; revised September 16, 2006. This research was supported by Seoul Future Contents Convergence (SFCC) Cluster established by Seoul Industry-Academy-Research Cooperation Project. This paper was recommended by Associate Editor E. Steinbach.
PY - 2007/4
Y1 - 2007/4
N2 - In this work, we develop a new motion-compe (MC) interpolation algorithm to enhance the temporal resolution of video sequences. First, we propose the bilateral motion estimation scheme to obtain the motion field of an interpolated frame without yielding the hole and overlapping problems. Then, we partition a frame into several object regions by clustering motion vectors. We apply the variable-size block MC (VS-BMC) algorithm to object boundaries in order to reconstruct edge information with a higher quality. Finally, we use the adaptive overlapped block MC (OBMC), which adjusts the coefficients of overlapped windows based on the reliabilities of neighboring motion vectors. The adaptive OBMC (AOBMC) can overcome the limitations of the conventional OBMC, such as over-smoothing and poor de-blocking. Experimental results show that the proposed algorithm provides a better image quality than conventional methods both objectively and subjectively.
AB - In this work, we develop a new motion-compe (MC) interpolation algorithm to enhance the temporal resolution of video sequences. First, we propose the bilateral motion estimation scheme to obtain the motion field of an interpolated frame without yielding the hole and overlapping problems. Then, we partition a frame into several object regions by clustering motion vectors. We apply the variable-size block MC (VS-BMC) algorithm to object boundaries in order to reconstruct edge information with a higher quality. Finally, we use the adaptive overlapped block MC (OBMC), which adjusts the coefficients of overlapped windows based on the reliabilities of neighboring motion vectors. The adaptive OBMC (AOBMC) can overcome the limitations of the conventional OBMC, such as over-smoothing and poor de-blocking. Experimental results show that the proposed algorithm provides a better image quality than conventional methods both objectively and subjectively.
KW - Bilateral motion estimation (ME)
KW - Frame rate up-conversion
KW - MC interpolation (MCI)
KW - Overlapped block motion compensation (OBMC)
UR - http://www.scopus.com/inward/record.url?scp=34247632622&partnerID=8YFLogxK
U2 - 10.1109/TCSVT.2007.893835
DO - 10.1109/TCSVT.2007.893835
M3 - Article
AN - SCOPUS:34247632622
SN - 1051-8215
VL - 17
SP - 407
EP - 415
JO - IEEE Transactions on Circuits and Systems for Video Technology
JF - IEEE Transactions on Circuits and Systems for Video Technology
IS - 4
ER -