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- multipilerless IDCT 无乘法器IDCT
- Finally, the computation accuracy of IDCT is verified. 最后对IDCT单元的运算精度进行了验证。
- The article emphasizes the realization of Huffman decode,IDCT decode and image scali... 由于图像的处理在单片机上实现,降低了产品的成本,具有较强地生产实用性。
- While decoding ， data stream are readed ， decoded ， inverse-quantified and then IDCT . 解码时，进行熵解码，反量化，反离散余弦变换（IDCT）。
- The IDCT algorithm has relatively better practicability with higher real-time performance and less processor resource consumption. 该优化算法实时性好，占用处理器资源少，具有较强的实用性。
- In order to exploit the spatial one. the parallel structure of variable length decoding unit, IDCT unit and motion compensation unit are studied. 在空间并行方面，本文分别对变字长解码单元、IDCT变换单元以及运动补偿单元的设计方法和并行解码结构进行了深入研究。
- Meanwhile, many video compression standards such as MPEG-1 and MPEG-2 employ DCT(Discrete Cosine Transform) and IDCT(Inverse Discrete Cosine Transform) in coding and decoding. 同时，许多视频压缩标准如MPEG-1和MPEG-2等均采用离散余弦变换(DCT: Discrete Cosine Transform)及离散余弦反变换(IDCT: Inverse Discrete Cosine Transform)进行编解码。
- The ASIC structure of the decoder is divided into several functional modules of bit stream production, decoding, denormalization, IDCT, windowing and RAM reset. ASIC设计中，系统被分为比特流产生、解比特流、反归一化、反DCT、加窗函数和RAM清零等功能模块。
- On the base of their advantages and disadvantages, the data driven strategy is adopted in the main structure, and pipeline is implemented in IDCT and IZZ unit. 根据各自的优缺点，分别在总体上采用了数据驱动策略，而在IDCT单元和反量化单元中采用了流水线结构。
- In Chapter three, it expatiates the modules in the video decoder separately, including Variable length decoding(VLD), Inverse scan(IS)/Inverse quantization(IQ), Inverse DCT(IDCT), and Motion compensation(MC). 在第三章中,本文分模块阐述了视频解码器各模块功能的实现,包括变长码解码(VLD)、反扫描(IS)和反量化(IQ)、反离散余弦变换(IDCT)、运动补偿(MC)等。
- Simultaneously this paper according to the theory of MPEG-4 decoding, analyzes the essential technology of VLD, RLD, IQ, IDCT, motion compensation in the decoding, and implements the software prototype of decoder. 同时本文根据MPEG-4解码的理论,重点分析了解码过程中的VLD、RLD、IQ、IDCT、运动补偿等关键技术,实现了解码器的软件原型。
- The image processing algorithm and software designing is the main problems in this research.As for the vital algorithm of DCT and IDCT transform, the algorithm speed is most import in the system. 在本文的研究过程中，图像处理的算法及其在DSP平台上的软件设计是主要的问题，作为图像水印的核心算法的DCT和IDCT(Inverse Discrete Cosine transform)变换,其速度对整个系统起着至关重要的作用。
- With the Winograd algorithm, the complicated eight points DCT and IDCT transform is simplified into simple addition andmultiplication, which according with hardware characteristics of DSP. 通过对常用的DCT和IDCT算法的比较，采用了Winograd算法，将复杂的8点DCT和IDCT变换转化为计算量较少的加法和乘法运算，符合DSP硬件的计算特点。
- In the image-processing field, in this thesis the implementation of 2D IDCT transformation for MPEG 2 using forward-mapping and motion estimation structure for MPEG 4 encoding are proposed. 在图象处理领域，本论文提出了用forward-mapping算法实现MPEG 2二维IDCT变换运算和一种适用于MPEG-4标准编码器的运动估值结构，通过系统级、结构级以及电路级的优化，取得低功耗下高效处理的效果。
- The editor structures include encoding and decoding.Its function include FDCT, IDCT, quantification and anti-quantification, DC encoding and AC coefficient ordering, entropy encoding and decoding. 编辑器结构分为编码过程和解码过程，其功能包括FDCT（正向离散余弦变换）和IDCT（DCT逆变换）、量化和反量化、DC编解码和AC系数排序、熵编码和熵解码。
- To reduce the chip area, the denormalization module, the IDCT module and the windowing module use a 17 bits multiplier in common.Cells in the IDCT module with similar function are combined together. 为减少芯片面积，反归一化、反DCT和加窗函数使用同一个17*17位乘法器，同时反DCT部分使功能相似的运算模块合并在一起。
- A fast IDCT algorithm is applied for the speed optimization of the IDCT module, and MMX technology is also adopted to obtain higher decoding speed of the basic decoder on PC platform. 为了提高基本解码器的解码速度，本文对基本解码器中IDCT模块采用快速算法进行速度上的优化，并采用MMX技术进一步提高基本解码器在PC平台上的解码速度。
- iDCT inverse Discrete Cosine Transformation 负离散余弦转换
- FPGA-based Solution for IDCT in Image Codec 图像编解码中IDCT的FPGA实现
- An ASIC Design of DA-based 2-D IDCT 基于DA算法的二维离散余弦逆变换的ASIC设计
