DCT:离散余弦变换
离散余弦变换(Discrete Cosine Transformation,简称DCT)是一种广泛应用于数学及工程领域的数学变换方法。因其名称较长,学术和科学领域常将其缩写为DCT,以方便书写与技术交流。该变换主要用于信号处理和图像压缩等方面,是许多重要算法的基础工具。
Discrete Cosine Transformation具体释义
Discrete Cosine Transformation的英文发音
例句
- It is then subject to such mathematical indignities as wavelet decomposition, multi-resolution Fourier analysis, polyphase filtering and discrete cosine transformation.
- 接下来它还要经过一些数学处理程序,比如小波分解,多重分辨率傅立叶分析,多相过滤,离散余弦变换(DCT)等。
- Image Watermarking Based on Discrete Cosine Transformation(DCT) and Doubly Stochastic Matrix
- 基于DCT与双随机矩阵的图像数字水印方案
- Aimed at the limitation of decoding RAM of ARM, this text discussed an optimized design of MP3 decoding by expanding Huffman table and inversing modified discrete cosine transformation.
- 针对ARM的解码空间局限,通过扩充霍夫曼表节点数,采用改进的反向离散余弦变换(DCT)等方法提出了一种基于ARM的MP3解码优化设计方法。
- By making an inverse discrete cosine transformation of these recorded intensity profiles, the distribution of fluorescent markers along the optical axis of a focused laser beam is obtained.
- 只要对所纪录的荧光序列做一个简单的傅立叶变换,即可以得到此位置样品沿着光轴方向的荧光团分布。
- Embedding watermarking into low, middle and high frequency coefficients of discrete cosine transformation respectively.
- 研究了水印在DCT系数低频、中频和高频的嵌入性能。
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