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- multithreshold SPIHT 多阈值SPIHT
- Design of low-power D-flip-flop based on multithreshold technique. 基于多阈值技术的低功耗D触发器设计
- Undistorted image compression algorithm based on lifting scheme and SPIHT[J]. 引用该论文 解成俊;顾海军;宋建中.
- The new algorithm comparing with SPIHT and SPECK has better performances in lossless compression, lossy compression and time of coding and decoding. 本文算法在无损压缩性能、执行速度和有损压缩性能上同SPIHT、SPECK算法做了比较,都优于这两种算法。
- Standard Couple image is decomposed and reconstructed with EZW and SPIHT at low bit rates. 编制程序分别采用EZW和SPIHT算法,在低码率下对标准Couple图像进行了编码和重构。
- In this thesis, two steps are added in the SPIHT algorithm to improve the coding efficiency. 本论文在阶级树集合分割演算法中加入两个步骤以改善编码效率。
- The modified coding algorithm based on listless zerotree wavelet was proposed by studying SPIHT and LZC. 摘要通过对SPIHT算法和LZC算法的研究,提出一种改进的无链表零树编码算法。
- SPIHT algorithm with multi-threshold quadruple parallel processing can enhance coding efficiency. SPIHT算法采用多阈值的四路并行处理结构,提高了编码效率。
- The SPIHT algorithm is one of the most efficient still image compression algorithms. SPIHT算法是压缩编码效率很高的静止图像压缩编码算法。
- We have applied wavelet transform and SPIHT coding based still image compressing programs on TMS320C6701 for hardware real-time compression. 在TMS320C6701评估板上用小波分解和SPIHT单帧图像进行实时压缩。
- Experimental results show that the proposed method increases the PSNR by about 0.3dB over SPIHT, and beats SPIHT by 35% at the CPU time. 在1bpp下;该文方法的PSNR比SPIHT提高了0.;3dB以上;计算速度比SPIHT提高了35%25。
- A lossless compression method based on SPIHT and inter-band correlation prediction was presented for MODIS multispectral images. 提出一种结合波段相关性判定和SPIHT编码的方法对MODIS多光谱图像进行无损压缩。
- An improved partial SPIHT with classified weighted rate-distortion optimization for interferential multispectral image compression[J]. 引用该论文 王柯俨;李云松;孔繁锵;吴成柯;Keyan Wang;Chengke Wu;Fanqiang Kong;Lei Zhang.
- 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。
- This paper studies an image lossless compression coding method based on the CDF (m,n)invertible or thogonal wavelet transform of lifting scheme and SPIHT. 研究了基于提升方案的CDF(m,n)双正交小波变换结合SPIHT应用于图象无失真压缩编码的方法。
- An image lossless compression coding performance is researched for Deslauriers-Dubuc(m,n)interpolating wavelet transform with SPIHT based on lifting scheme . 研究了基于提升方案的 Deslauriers- Dubuc( m ;n)插值小波变换结合 SPIHT应用于图象无损压缩编码的性能 .
- VLSI architecture for the implementation of image compression coding using pipeline and time division multiplexing technology in lifting wavelet transform and SPIHT was proposed. 摘要提出了一种基于提升小波变换和SPIHT算法的图像压缩编码的VLSI结构。
- The wavelet coefficients which represent mesh details are grouped into zerotrees, and each zerotree is compressed independently using a modified SPIHT algorithm. 代表细节信息的小波系数被组织成零树,设计了一种修正的SPIHT算法来对每棵小波零树独立进行压缩。
- Based on the magnitude distribution law of DWT coefficients of color image data in Karhunen-Loeve space, SPIHT algorithm is applied to the three KLT components of each group. 为了解决这一问题,本文先将一幅图像分成小的块,再对各个小块进行KL变换,然后根据KL空间中的各子带小波系数的关系,利用改进的SPIHT算法对各个块进行编码。
- Experiments on standard images and different medical images show that the PSNR of improved algorithm is better than that of original SPIHT at the same ratio. 在标准图像和不同的医学图像上,对SPIHT算法和改进的算法进行了编解码压缩实验,结果表明,同样压缩比的情况下,改进的算法的峰值信噪比优于原始的SPIHT算法。