系统使用CCD获取原始数字图像数据，采用快速算法实现了核心的二维DCT变换，经过编码后，在一个16位定点DSP上实现了快速图像压缩。
The system uses CCD for getting digital image, uses a 16 bit fix-point DSP to perform fast discret cosine transform(DCT) arithmetic and image encoding and realizes a fast image compression in end.
针对数据流上近似查询中的梗概计算，提出了一种新的基于最小误差的维压缩小波变换算法(MEDC)。
Aiming at synopsis computation of approximate query in data stream, a novel wavelet transformation algorithm, Minimum Error based Dimension Compression (MEDC) algorithm, is proposed in this paper.
这种方法的优点是能够在保证不降低网格精度的情况下实现网格DEM数据的压缩以及三维地形上面片的简化。
The merit of this method is it can compress the DEM data and simplify the terrain grids without precision reducing.
通过压缩数据维的方式，研究城市建筑用地信息准确提取的原理和方法。
Based on a data dimension compression technique, this paper studies the principles and method of remote sensing information extraction for urban built up land.
对虚拟人图像数据作多种二维处理，包括图像几何变换、灰度增强、格式转换和压缩、图像配准和分割。
Many methods are used to finish VCH planar image processing, including image geometry transform, gray-scale enhancement format transition and compression , image registration and segmentation.
在光线空间的数据压缩中，计算了数据的相关系数，采用二维离散余弦变换(DCT)进行了变换域分析。
Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (DCT) in ray-space data compression.
多元统计分析的主成份分析方法是对多维矢量数据提取主要特征分量，以此达到压缩矢量维数的目的。
The principal component analysis in multivariate statistic analysis is a method of compressing the dimension of vector data by extracting principal typical components from sample data set.
提出一种三维多光谱图像数据压缩的新方法。
A new method is proposed for multispectral image data compression.
再用块编码、参考编码和高维变换(小波)编码等三类I BR压缩系统对照片集图像数据进行压缩。
The image data of the photo set was compressed with IBR compression algorithms such as the block coder, the reference coder and multidimensional wavelet transform.
为压缩内建自测试(BIST)期间所需测试数据存储容量，提出了一种新的基于测试数据两维压缩的BIST方案。
To reduce the storage volume of the test data during the built-in self-test (BIST), a new BIST technique based on two dimensional compression of test data is presented.
以三维有限元模拟的应变值与三轴压缩实验观测应变数据残差平方和最小为参数反演的目标函数。
The objective function was defined as minimization between strains obtained from finite element method and ones observed from three-axial compression test in laboratory.
针对三维激光扫描仪获得的彩色人头数据集压缩问题，提出了基于区域分割的顶点合并网格简化算法。
To simplify the 3D color head dataset acquired from 3D color laser scanner, a new vertex merging mesh simplification algorithm based on region segmentation is presented.
提出了一种基于KL -变换的三维谱象数据压缩方法。
A data compression method for 3 dimensional spectral image data based on KL transforms is presented.
二维和三维地震勘探数据中存在的相邻数据的相关性为数据压缩提供了可能，而远程勘探数据的传输又有对数据进行压缩的要求。
Correlation among contiguous data of 2d or 3d seismic exploration provides possibility for the data compression, which is necessary in transmission for long distance seismic exploration.
针对三维网格大数据量与三维图形引擎处理能力及网络带宽限制之间的矛盾，三维网格压缩编码技术提供了一系列解决方法。
To solve the conflict between the huge data of the 3d mesh and the power of the graphics engines and the limit of the network bandwidth, 3d mesh compression technique provides a series of approaches.
高光谱数据作为一种三维图像，不同于二维静止图像，也不同于视频图像，一般的图像压缩技术难以达到高光谱压缩的性能要求。
As a kind of three-dimensional data sets, it is different from the 2d still image, and is also different from video series, so the general image compression method is not efficient for them.
针对三维扫描仪所获取的模型数据量庞大，无法直接使用扫描仪的问题，为压缩模型数据量，提出了一种基于三角形折叠网格模型化简方法。
Aimed at the problem that original model data obtained by 3-d scanner are huge and can not be used in real application, a mesh simplify method based on triangle collapse is proposed.
针对三维扫描仪所获取的模型数据量庞大，无法直接使用扫描仪的问题，为压缩模型数据量，提出了一种基于三角形折叠网格模型化简方法。
Aimed at the problem that original model data obtained by 3-d scanner are huge and can not be used in real application, a mesh simplify method based on triangle collapse is proposed.
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