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- 2 - D wavelet transform 二维小波变换
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- Integer CDF(2,2),CDF(2,4)biorthogonal wavelet transform may be completed by add and shift operation,fast,easy to implemented by hardware. 整数CDF(2,2)、CDF(2,4)可逆双正交小波变换可以由加法和移位完成,运算速度快,便于硬件实现。
- Antonini M. Barland M. Mathicu P. et al. Image coding using wavelet transform [J]. IEEE Trans. On Image Processing, April 1992, 11 (2). 陈俊;苏凯雄.;小波变换在视频压缩编/解码系统中的应用[J]
- Objective Apply wavelet transform to denoise medical image. 摘要目的利用小波变换进行医学图像去噪。
- Denoising analysis of OTDR data based on wavelet transform[J]. 引用该论文 王韶波;李康;孔繁敏;吴涛.
- Methods of signal processing in LIA based on wavelet transform[J]. 引用该论文 杨兴林;王华岑;徐铁铮;李劲.
- In the conventional wavelet transform,all the lines are filte re d before column wavelet transform starts and then embedded quantization and enc oding are re quired. 在传统的图像小波变换中,首先需要对每行进行小波变换,等所有的行变换完成后再进行列小波变换,然后再进行嵌入式量化和编码,这就需要足够的存储容量保存这些变换结果,而且运算速度也慢。
- Losless encoding of CDF(2,2)combine with SPIHT comparison whit ARJ ,JPEGLS and integer Haar wavelet transform with DPCM,improved compression rate by40%,30%,15%respectively. CDF(2,2)结合SPIHT编码的无损图象压缩比与ARJ,JPEGLS,整数Haar变换结合DPCM相比分别平均提高了40%25,30%25,15%25左右。
- By using wavelet transform, the emission of HHG in different time is obtained. 利用小波变换,观察了高次谐波在不同时刻的发射情况。
- B group(42 cases) received BCG polysaccharide and nucleic acid preparation [1 mg(2 branches),every 2 d for 1 dose,im]. B组(42例)肌肉注射卡介菌多糖-核酸注射液[1次/2 d,1mg(2支)/次];
- With regard to eNOS,at 2 d,3 d and 7 d post pMCAO,group B performed significant difference with group C and group D. eNOS阳性表达2、3、7d;各组之间比较差异有统计学意义(P?0.;05)。
- In this paper, wavelet transform with nonlinear scale (NWT) is introduced. 我们介绍了一种非线性尺度小波变换(Wavelettransformwithnonlinearscale,NWT)。
- Matra - Marconi's "tax" 2 C (R05) or 2 D (modified after the R06 and R07) satellite communications equipment. 马特拉-马可尼公司的“赋税”2C(R05)或2D(改装后的R06和R07)卫星通信设备。
- Usually,wavelet transform module maximum accords with saltation points. 小波变换模的极值点常对应于信号突变点。
- The reconstruction of the 3 D deformed paleostructures should be considered as the superimposition of 2 D deformation. 三维变形古构造恢复一般应视为二维变形的某种叠加,叠加方式视断裂总体变形特征而定。
- The wavelet transform is used to analyze some voltage signals what it detected. 利用小波变换对所检测到的电压信号进行了分析。
- However,it had some limitation in partial deformity of surficial body, not better than the 2 D images. 但有其一定的局限性,对部分体表畸形检出不及二维探头。
- Finally, the fused image was reconstructed through inverse wavelet transform. 最后,通过小波逆变换得到融合图像。
- Wavelet transform is an efficient mathematical tool for singularity detection. 小波变换是检测信号奇异点的种有效的数学工具。