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已知两个不同图像块亮度数据如下:
(1)分析DCT原理,采用DCT方法,编程并计算相应的DCT系数,分析系数分布特点。
(2)依据视觉特性分析量化表步长的分布特点,完成DCT系数量化。
(3)采用Z形扫描,实现输出数据的统计编码,形成Video stream。
(4)采用IDCT重建图像亮度数据,计算SAD大小,分析产生误差的原因及采用DCT进行数据压缩的原理。( )
(5)分别利用左上角1、3、6个系数重建图像,计算相应的SAD,并由
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二维离散小波变换,实现一幅图的分解与重构。恢复原图-Two-dimensional discrete wavelet transform, the realization of a diagram of the decomposition and reconstruction. To restore image
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在计算机视觉领域,人体运动分析的研究具有相当广泛的应用前景。由于人体运动的复杂性,已有的研究方法都对研究对象—人体,加上了许多限制条件。本文中提出了一种新的方法来获得各类人体运动的信息。本文主要论述了该方法中对人体三维运动骨架的重建部分,其基本思想是在摄相机定标的基础上,应用三维人体模型知识和运动连续性依次建立每个图象的人体运动骨架。-In the field of computer vision, human motion analysis with a wide range of appli
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根据对所输入的png格式的真彩图像、小波类型(db9或haar)和相应的阈值进行了三级非标准小波harr或db9的分解和重构,从而达到了对原图像的压缩处理的
-Entered based on the true color of the png format images, wavelet type (db9 or haar) and the corresponding threshold for the three non-standard or harr wavelet decompos
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medicine image process for video reconstruction-medicine image process for video reconstruction
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ABSTRACT
The Scalable Video Coding (SVC) extension to the H.264/AVC
video coding standard introduces multiple functionalities to the
H.264/AVC decoding process. These functionalities include
spatial, quality and temporal scalability. In this
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image processing
包含 dct,smooth filter and prediction, reconstruction image-image processing contains dct, smooth filter and prediction, reconstruction image
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Block-based random image sampling is coupled with a projectiondriven
compressed-sensing recovery that encourages sparsity in
the domain of directional transforms simultaneously with a smooth
reconstructed image. Both contourlets as well as comp
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Covered topics
Introduction and image acquisition
Human vision, color models and image formation
Color and point transforms -histogram
Geometrical transforms
Interpolation
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