Motion parameters estimation by new propagation approach and time-frequency representations

被引：4
|
作者：
Djurovic, I [1 ]
Stankovic, S
Ohsumi, A
Ijima, H
机构：
[1] Univ Montenegro, Dept Elect Engn, YU-81000 Podgorica, Serbia Monteneg, Serbia
[2] Kyoto Inst Technol, Dept Mech & Syst Engn, Sakyo Ku, Kyoto 6068585, Japan
来源：
SIGNAL PROCESSING-IMAGE COMMUNICATION | 2004年 / 19卷 / 08期
基金：
日本学术振兴会;
关键词：
velocity estimation; video-sequences; spectral estimation; time-frequency representations; instantaneous frequency;
D O I：
10.1016/j.image.2004.05.010
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Estimation of time-varying motion parameters of moving objects is considered. The motion parameters are mapped into the instantaneous frequency (IF) of a frequency modulated signal. The IF estimation is obtained by using the Wigner distribution. Generalization in the case of multiple objects and reduced interference distributions is given. A new propagation approach is proposed for joint estimation of velocity and position of objects in a video-sequence. This approach produces better accuracy than the variable mu-propagation-based one. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：755 / 770
页数：16
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