| 指纹图象小波压缩中子图信息的研究 |
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| 引用本文： | 王全义,王文渊.指纹图象小波压缩中子图信息的研究[J].电子与信息学报,1998,20(5):584-590. |
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| 作者姓名： | 王全义 王文渊 |
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| 作者单位： | 清华大学自动化系，清华大学自动化系 北京 100084，北京 100084 |
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| 摘 要： | 图象小波分解后,各子图信息对图象恢复的质量有很大的影响。本文结合指纹图象的特点,明确了各个子图在图象恢复中的重要性,并提出了一种适用于纹理图象的压缩方法,在保证较好的图象恢复质量和较大压缩比的情况下,简化了算法,加快了处理速度。
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| 关 键 词： | 指纹图象 小波变换 图象压缩 |
| 收稿时间： | 1997-5-4 |
| 修稿时间： | 1998-1-20 |
STUDIES ON SUB-IMAGE INFORMATION IN FINGER PRINT IMAGE COMPRESSION USING WAVELET DECOMPOSITION |
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| Wang Quanyi,Wang Wenyuan.STUDIES ON SUB-IMAGE INFORMATION IN FINGER PRINT IMAGE COMPRESSION USING WAVELET DECOMPOSITION[J].Journal of Electronics & Information Technology,1998,20(5):584-590. |
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| Authors: | Wang Quanyi Wang Wenyuan |
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| Affiliation: | Department of Automation Tsinghua University Beijing 100084 |
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| Abstract: | Sub-image information of the wavelet decomposed finger print image is essential to the quality of reconstructed image. This paper describes the importance of the sub-images according to the features of ringer print images, and provides a new method that can be used to compress texture images. It can simplify and accelerate the algorithm with a better reconstructed image quality as well as a larger compress ratio. |
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| Keywords: | Finger print image Wavelet transform Image compression |
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