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一種運動自適應的幀內(nèi)插算法

駱立俊,  鄒采榮,  何振亞,  陸陽

駱立俊, 鄒采榮, 何振亞, 陸陽. 一種運動自適應的幀內(nèi)插算法[J]. 電子與信息學報, 1998, 20(4): 492-499.
引用本文: 駱立俊, 鄒采榮, 何振亞, 陸陽. 一種運動自適應的幀內(nèi)插算法[J]. 電子與信息學報, 1998, 20(4): 492-499.
Luo Lijun, Zou Cairong, He Zhenya, Lu Yang. AN ALGORITHM FOR MOTION ADAPTIVE FRAME INTERPOLATION[J]. Journal of Electronics & Information Technology, 1998, 20(4): 492-499.
Citation: Luo Lijun, Zou Cairong, He Zhenya, Lu Yang. AN ALGORITHM FOR MOTION ADAPTIVE FRAME INTERPOLATION[J]. Journal of Electronics & Information Technology, 1998, 20(4): 492-499.

一種運動自適應的幀內(nèi)插算法

AN ALGORITHM FOR MOTION ADAPTIVE FRAME INTERPOLATION

  • 摘要: 本文提出了一種運動自適應的幀內(nèi)插算法,可以用于逐行掃描的數(shù)字視頻系統(tǒng)中做幀速率轉換。該算法首先采用了線性預測塊匹配搜索算法來估計內(nèi)插幀中每一個象素的運動矢量;然后對得到的運動場進行中值濾波和判別,剔除運動不一致或錯誤的運動矢量;最后沿著運動軌跡線性內(nèi)插得到內(nèi)插幀的象素值。仿真分析表明本文提出的算法,在一個大的搜索區(qū)域進行快速搜索和判別,可以有效地解決內(nèi)插幀中快速運動目標的運動模糊和有切換幀時的圖象重疊,提高了幀速率轉換中內(nèi)插幀的主觀視覺質(zhì)量。
    Abstract: A motion adaptive frame interpolation algorithm for progressive frame rate conversion of digital video systems is proposed. Firstly a motion vector is searched for each pixel in the interpolated frame using the block-matching search method of linear prediction. Then the resulting motion field is median filtered and differentiated to remove inconsistent or wrong vectors. Finally averaging along the motion trajectory is used to get the interpolated pixel values. Simulation results indicate the proposed method with fast search and differentiation in a large area can solve the motion blurring of fast moving object and the scene overlapping of a scene change in the interpolated frame, and the corresponding objective quality of the interpolated frame is also improved.
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  • Hentchel C. Linear and nonlinear procedures for flicker reduction. IEEE Trans. on Consumer Electronics, 1992, CE-38(4): 151-156.[2]Csillag Peter, Boroczky Lilla. Motion-compensated frame rate[3]using an accelerated motion model. Proceeding of ICASSP96, Altalanda, USA: 1996, vol. 4, 2319-2322.[4]Schamel G. Pre- and post-filtering of HDTV signals for sampling rate reduction and display[5]up-conversion. IEEE Trans. on CAS, 1987, CAS-34(11): 1432-1439.[6]Castagno Roberto, Haavisto Petri, Giovanni Ramponi. A method for motion adaptive frame rate up-conversion. IEEE Trans. on CAS VT, 1996, 6(5): 436-446.[7]ISO/IEC 13818-2 Coding of moving picture and associated audio, 1995.[8]Koga T, linuma K, et al. Motion-compensated inter-frame coding for video conferencing. in Proc. NTC81, New Orleans, LA: Nov. 1981, C9.6.1-C9.6.5.[9]Kappagantula S, Rao K R. Motion compensated inter-frame image prediction. IEEE Trans. on Commun., 1985, COM-33(9): 1011-1015.[10]Jain J R, Jain A K. Displacement measurement and its application in inter-frame image coding. IEEE Trans. on Commun., 1981, COM-29: 1799-1808.[11]Ghanbari M. The cross-search algorithm for motion estimation[J].IEEE Trans. on Commun.1990, 38(7):950-953[12]Lee L W, Wang J F, Lee J Y, and Shie J D. Dynamic search-window adjustment and interlaced search for block-matching algorithm. IEEE Trans. on CAS VT, 1993, 3(2): 85-87.[13]Li R, Zeng B, Liou M. A new three-step search algorithm for block motion estimation. IEEE Trans. on CAS VT, 1994, 4(4): 438-442.[14]Po L M, Ma W C,. A novel four-step algorithm for fast block motion estimation. IEEE Trans. on CAS VT, 1996, 6(3): 67-71.
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出版歷程
  • 收稿日期:  1997-01-15
  • 修回日期:  1997-09-11
  • 刊出日期:  1998-07-19

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