| 基于小波变换的视频图像压缩算法研究 |
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| 引用本文： | 刘苹妮,刘晓红,王志虎. 基于小波变换的视频图像压缩算法研究[J]. 现代电子技术, 2008, 31(12): 141-143 |
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| 作者姓名： | 刘苹妮 刘晓红 王志虎 |
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| 作者单位： | 空军工程大学,陕西,西安710077 |
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| 摘 要： | 提出一种时域加强并结合时间轴稳定性码率控制的三维小波变换的视频图像编码方法。该算法根据人类视觉系统(HVS)的特性对视频图像不同频率的数据进行粗细不同的量化,可以很好地解决当图像运动变化较大时所产生的大数据量的问题;该算法无运动估计和补偿环节,降低了复杂度;采用提升型变换可以节省内存空间并提高运算速度;进行了码率控制,得到了良好的时间轴稳定性,提高了视频图像的清晰度和流畅度。
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| 关 键 词： | 小波变换 视频压缩 提升型算法 视觉阈值量化 时间轴码率控制 |
| 文章编号： | 1004-373(2008)12-141-03 |
| 修稿时间： | 2007-12-30 |
Research on Video Compression Algorithm Based on Wavelet Transform |
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| LIU Pingni,LIU Xiaohong,WANG Zhihu. Research on Video Compression Algorithm Based on Wavelet Transform[J]. Modern Electronic Technique, 2008, 31(12): 141-143 |
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| Authors: | LIU Pingni LIU Xiaohong WANG Zhihu |
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| Abstract: | This thesis presents a video image compression method of 3D wavelet transformation with temporal enhancement and the rate control of temporal stability.This algorithm based on the Human Visual System(HVS) performs different ranges quantification to different frequency data of video image,to solve the problem that the large number of data is created when motion is acute.Experiment shows this algorithm will become more simple,save memory space,improve operation speed,get good temporal stability and improve the articulation and fluency of video image.The simulation shows it is valid and feasible. |
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| Keywords: | wavelet transform video compression lifting scheme HVS threshold quantization temporal rate control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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