期刊文献+

一种基于块运动类型和方向预测相结合的快速搜索算法 被引量:1

A Fast Algorithm Based on Motion Classification and Direction Prediction
在线阅读 下载PDF
导出
摘要 根据序列图像中相邻块运动矢量的时间和空间相关性,本文提出一种基于块运动类型和方向预测相结合的快速搜索算法。该算法对块的运动类型和相对运动类型进行预测,并根据不同的运动类型自适应地采用不同的搜索策略进行搜索,对相对大运动块进行运动方向预测,并根据块的运动方向选择相应的方向搜索模板进行搜索。实验表明,该算法能在保证搜索准确度的同时节省大量的搜索时间。 This paper proposes a fast algorithm based on motion classification and direction prediction in which the spatial-temporal correlations of adjacent blocks' motion vectors are used.The algorithm predicts the motion classification and relative motion of blocks and adaptively chooses different search method with motion classification information of blocks.For relative fast motion blocks,it predicts the motion direction and chooses corresponding search patterns.Experiments show that the algorithm can save more search time than other traditional algorithms with the same accuracy.
出处 《计算机工程与科学》 CSCD 北大核心 2011年第7期112-117,共6页 Computer Engineering & Science
基金 江苏省自然科学基金资助项目(BK20080544) 教育部留学人员回国启动基金项目
关键词 运动矢量 运动估计 运动类型 方向预测 motion vector motion estimation motion classification direction prediction
  • 相关文献

参考文献9

二级参考文献43

  • 1魏星,蒋建国,齐美彬.基于选择预测的自适应运动估计算法[J].中国图象图形学报,2005,10(7):873-877. 被引量:12
  • 2Koga T, Iinuma K, Hirano A, et al. Motion-compensated Interframe Coding for Video Conferencing[C]//Proc. of NTC'81. New Orleans, LA, USA: [s. n.],1981.
  • 3Jain J, Jain A. Displacement Measurement and Its Application in Interframe Image Coding[J]. IEEE Trans. on Communications, 1981, 29(12): 1799-1808.
  • 4Po Laiman, Ma Wing-Chung. A Novel Four-step Search Algorithm for Fast Block Motion Estimation[J]. IEEE Trans. on Circuits Systems for Video Technology, 1996, 6(3): 313-317.
  • 5Liu Lurng-Kuo, Feig E. A Block-based Gradient Descent Search Algorithm for Block Motion Estimation in Video Coding[J]. IEEE Trans. on Circuits Systems for Video Technology, 1996, 6(4): 419-422.
  • 6Zhu Shan, Ma Kaikuang. A New Diamond Search Algorithm for Fast Block-matching Motion Estimation[J]. IEEE Trans. on Image Processing, 2000, 9(2): 287-290.
  • 7Zhu Ce, Lin Xiao, Chau L P. Hexagon-based Search Pattern for Fast Block Motion Estimation[J]. IEEE Trans. on Circuits System Video Technology, 2002, 12(5): 349-355.
  • 8Ding Guiguang, Guo Baolong. Motion Vector Estimation Using Line-square Search Block Matching Algorithm[J]. EURASIP Journal on Applied Signal Processing, 2004, 11(9): 1750-1756.
  • 9Koga T, Iinuma K, Hirano A, et al. Motion-compensated Interframe Coding for Video Conferencing[J]. Proc NTC, 1981, 4(11):GS.3.I-G.5.3.5.
  • 10Jain J, Jain A. Displacement Measurement and Its Applicaiton in Interframe Image Coding[J]. IEEE Trans on Commun, 1981, 29(12) :1 799-1 808.

共引文献40

同被引文献10

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部