不同管电流采集到的图像均匀性无统计学差异。
There was no difference of statistics in homogeneity of image under each tube current.
基于数字图像处理技术,对沥青混合料均匀性指标的部分影响因素——成型方法与集料类型,展开定量研究。
Based on digital image processing, some influence factors of the index of asphalt mixture homogeneity such as experimental method and aggregate type are quantitatively investigated.
利用区域内部均匀性和区域间对比度这两个分割算法评价指标来对分割过后的图像进行定量的分析。
Uniformity of the use of intra-regional and inter-regional contrast of these two indicators to the image of the partition after the quantitative analysis.
补偿过程图像验证了响应率和偏置的非均匀性对固定图形噪声的影响。
The images of compensating process verify the influence of nonuniformity of responsibility and offset on fixed pattern noise.
该系统以计算机为终端,配合光学系统和软件,进行了外场远目标成像试验,并对图像进行了非均匀性校正等处理。
With computer terminal, optic system and software, the outdoor experiments are carried out aiming at distant target, and the image are processed by nonuniformity correction etc.
基于数字图像处理技术,首次对沥青混合料中集料的分布状态,即沥青混合料均匀性进行了直接研究。
Based on digital image processing techniques, the aggregate distribution in hot-mix asphalt, i. e. homogeneity was studied directly in this paper.
实验结果达到了预期目的,表明基于DSP的红外图像非均匀性实时校正系统实现的校正方法简单,效果理想。
Experimental results showed that the infrared image nonuniformity real-time correction system based on DSP can do the correction in a simple way with satisfactory results.
用1931CIE和1976CIE分析了液晶投影显示分色系统对图像色纯度和色均匀性的影响。
The influence of color splitting system for liquid crystal projection display on color purity and color uniformity of an image is analyzed with color standards of 1931CIE and 1976CIE.
介绍了一种自适应红外图像非均匀性校正方法及其FPGA实现。
An adaptive method for correcting the nonuniformity of infrared images and its implementation on FPGA are presented.
本文重点介绍了八通道射频发射线圈的设计方法及其如何改善B1发射场的空间不均匀性,改善图像质量的。
In this paper, we focus on the design method of the RF coil and how to improve the homogeneity of the B1 transmit field and the quality of the image.
基于数字图像处理与分析技术,提出一种可取代目测这种定性评价泡沫铝中泡体均匀性的定量表征方法。
A quantitative characterization method instead of qualitative ocular estimate about uniformity of cells in aluminum foams was put forward based on the digital image processing and analysis technology.
首先分析了X射线安检系统应用中图像非均匀性的原因,并在此基础上提出了一种新的软硬件结合的校正方法。
Based on the nonuniformity analysis of image in the X-Ray security inspection system, a novel correction method using both software correction and hardware correction is proposed.
提高了CCD摄像机在炮管内膛的成像质量,使图像在亮度、均匀性、色彩和清晰度方面达到很好效果。
The imaging quality of CCD camera for the inner bore of a gun barrel has been improved. The luminance, uniformity, color and sharpness of image have attained a good effect.
最后,对红外图像不均匀性校正研制实用效果进行了评述。
Finally, the practice effect of nonuniformity adjustment to infrared image is introduced.
对于纸页的均匀性分析,通过图像变换,将空间域图像变换到频域或小波域进行分析,获取其特征;
The homogeneity of the sheet is analyzed by image transform, i. e. the spatial domain image is transformed to frequency domain or wavelet domain to obtain the features.
首先利用指纹方向一致性特征将指纹图像转换成具有较大灰度均匀区域的灰度图像。
First, we use coherence of orientation to turn fingerprint image into image with greater even gray areas.
本文首先分析了红外图像非均匀性的特征及其产生的原因,以及基于场景的红外图像非均匀性校正的意义。
At first in this paper, the features and causations of nonuniformity in infrared imaging systems and sense of the scene-based NUC are described.
由于核医学仪器在计算位置信息时的特点,采集的原始图像总会在线性和均匀性上出现偏差。
Because of the character of calculating position of nuclear medical instrument, linearity and uniformity are not satisfactory in the primitive imaging.
可以实时完成焦平面信号的数据采集、数据重排、非均匀性校正、图像增强、疵点自动查找和补偿以及视频合成显示等一系列功能。
It can implement FPA data sample, data rearrange, nonuniformity correction, image enhancement, defect pixel automatic searching and compensation, video signal synthesizing and displaying, etc.
将图像处理技术应用到驱动电路中,改善了图像的亮度均匀性和灰度再现质量,降低了整机的功耗。
An image processing method is used into the driving circuit, and the image luminance uniformity and gray-scale reproduction quality are improved, the sample power consume is also reduced.
依据数字图像处理理论,研发出一种基于数字图像的岩石非均匀性表征技术。
A digital image based characterization method of rock's heterogeneity is developed according to the theory of digital image processing.
图像给出了内爆压缩均匀性、对称性、压缩比等直接信息。
The a -particle image reflect the direct information about laser radiation symmetry and uniformly, implosion compression ratio, etc.
并对所设计的系统在ASAP中进行了模拟,得出了屏幕图像畸变、均匀性和像面光照度分布等性能指标,得到令人满意的结果。
The simulation experiment was implemented with ASAP, and distortion, uniformity and illumination distribution of the image on the screen were gained. The experimental results were satisfied.
分析单幅差分图像的空间相关性:使用采样窗口对单幅差分图像的小波域采样并将图像分割成若干个均匀分布的小块。
Analyze the space correlation in the single differential image: sample the wavelet coefficients with window and segment the image into the equal blocks.
实验结果表明,此方法二值化效果好,对于有噪声干扰、非均匀光照的牌照图像有良好的适应性。
It has been proved that the result of the binarization is well, and has good adaptability to the license plate picture with noise interfering and nonuniform illumination.
提出了一种以FPGA为核心的焦平面器件实时非均匀性校正方法,能够实时地完成非均匀性校正系数的在线计算、红外图像的非均匀性校正。
The two-point correction method is analyzed, and a new real-time nonuniformity correction algorithm for IRFPA is proposed by using field programmable gate array(FPGA).
在玫瑰扫描亚成像系统中,由于采集到图像的不均匀性和欠采样性,用传统的方法很难恢复被扫描物体的图像。
The image got by rosette scanning system is not uniform and lack of sampling. It is difficult to restore the image of scanned object.
通过在包含同质或均匀区域的彩色伪造图像中的实验,进一步验证了本算法的有效性。
Experimental results on several forged images with various homogeneous or uniform regions were presented to demonstrate the effectiveness of the proposed algorithm.
针对遥感图像分布的不均匀性,该文提出的算法没有采用固定的马尔可夫随机场模型参数,而是在递归分类算法中分级地调整模型参数以适应区域的变化。
As the MRF model with fixed parameters does not fit the real remotely sensed image very well, this paper adjusts the MRF model "s parameters during the classification procedure."
针对遥感图像分布的不均匀性,该文提出的算法没有采用固定的马尔可夫随机场模型参数,而是在递归分类算法中分级地调整模型参数以适应区域的变化。
As the MRF model with fixed parameters does not fit the real remotely sensed image very well, this paper adjusts the MRF model "s parameters during the classification procedure."
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