窗宽

目的探讨窗宽、窗位在胸部CR图像后处理的应用方法和效果。

To investigate the postprocessing modality and efficacy of window width and window level during chest CR imaging .

螺旋CT测量日本大耳白兔气道径线的窗宽窗位选择

The selection of window width and level for measuring the airway dimensions with spiral CT scan : an experimental study in Japanese white big-ear rabbits

基于MeanShift的核窗宽自适应目标跟踪新算法

New Tracking Algorithm Based on Mean shift with Adaptive Bandwidth of Kernel Function

CT窗宽窗位的分析与应用

Analysis and Application of CT Window and Center

然后，在分析经典MeanShift视频跟踪算法的基础上，本文提出一种基于前景分割的自适应核窗宽的视频跟踪算法。

Then , based the analysis of classic video Mean Shift tracking algorithm , this paper proposed a bandwidth adaptive video tracking algorithm with foreground separation .

在同样的窗宽下，Gabor展开的时频聚集性好于短时傅立叶变换。

Time-frequency resolution of Gabor expansion is better than STFT in the case of same window width .

基于边界力的Mean-Shift核窗宽自适应算法

Algorithm of Adaptive Kernel-Bandwidth for Mean-Shift Based on Boundary Force

Mean-Shift跟踪算法中核函数窗宽的自动选取

Automatic Selection of Kernel-Bandwidth for Mean-Shift Object Tracking

在病人摄片及后处理过程中主要应用的DR成像技术有窗宽、窗位调整、反白技术、局部放大等。

The DR technology that were applied included : changes of the level of window and window width , reversion of black and white , zoom , et al .

DDR立位胸片窗宽、窗位与密度值的观察

The Relationship Study between Window Level , Window Width and Density Value in Chest Film of Digital Radiography

调节动脉期图像窗宽窗位进行连续薄层源图像追踪观察、多平面重组、最大密度投影、容积再现成像，获得CT血管造影图像。

The window width of the arterial phase images were adjusted for tracking observation of consecutive thin layer source images , multiplanar reconstruction , maximum intensity projection imaging and volume rendering so that eventually the CT angiographic images were achieved .

所测体积的最大值与最小值之比为1.35。结论：CT窗口技术对靶区勾画的影响不容忽视，因此要调整窗宽窗位到理想状态，以便能准确的勾画靶区。

The ratio of the largest to the smallest volume was 1.35.Conclusions : The influences in target volume delineation caused by CT window technique are not negligible , so optimal WW and WL is significant for accurate target volume delineation .

方法：回顾性分析手术后病理证实的42例甲状腺癌CT资料，在PACS工作站采用任意窗宽窗位观察CT影像表现，分析误诊原因。

Methods : CT findings in 42 thyroid carcinoma proved by operation and pathology were analyzed retrospectively , and the CT images were evaluated with different window levels and widths on PACS , and the causes of misdiagnosis were analyzed .

传统核窗宽固定的Mean-Shift跟踪算法不能很好地对逐渐增大尺寸的目标进行有效的跟踪。

Classic Mean-Shift based tracking algorithm uses fixed kernel-bandwidth , which limits the performance when the object scale exceeds the size of the tracking window .

方法分析400份DDR立位后前位胸片窗宽、窗位与密度值的变化。

Methods 400 DR post-anterior chest films were observed . Change of window level , window width and density value of these films were analysed .

结果（1）不同窗宽测量病灶最大误差7mm。

Results ( 1 ) The biggest error among different widow widths measuring foci was 7 mm .

结论认识DDR立位后前位胸片窗宽、窗位与密度值的关系，对提高其质量有很大价值。

Conclusion It is important to recognize the relationship between window level , window width and density value in DR post-anterior chest films in order to improve its quality .

选择Harr小波进行研究，因为其具有良好的时间局部性和简明的解析表达式，而且在窗宽范围内能量泄露较小。

The reason to choose Harr wavelet is that it has excellent time localization performance , concise analytical expression and lower energy leakage on the window scale .

应用SophyDSXSPECT系统，以90Y、32P纯β类核素作为辐射源，通过模型实验选用不同准直器、不同能量窗宽等进行轫致辐射显像，以探讨最佳显像条件。

Sing Sophy DSX SPECT and 32P or 90y as the radioactive sources , the optimal bremsstrahlung imaging condition with different collimators , various widths of energy window , and different distance etc was discussed .

Rho激酶抑制剂法舒地尔降低炎症因子水平、减轻组织损伤，改善神经缺损和预后，具有抗炎和神经保护作用，且时间窗宽、安全性好。

Hydrochloric Fasudil , a Rho kinase inhibitor , can reduce the serum level of inflammatory factors , release brain damage and improve neurological deficits and prognosis . It has anti-inflammatory and neuro-protective effects , a wide therapeutic time window and safe using .

新估计量的拟合精度明显好于Priestley-chao核估计量，新的窗宽选择方法比广义交叉确认准则计算简单；

The precision of new estimate is better than Priestley-chao Kernel estimate clearly , the new technique of selecting bandwidth is easier than the rule of ascertaining generalized crossing for counting ;

结果获得了离体牛肉和牛肝组织的IB减影图像及相应的B超图像和衰减系数减影图像，并得到不同阈值和频谱计算窗宽下的IB减影图像。

Result The experiments of bovine muscle and liver in vitro were implemented . The differential IB images were acquired as well as the corresponding B-mode images and the differential attenuation images . The differential IB images in various thresholds and calculation window sizes for spectrum analysis were also acquired .

用非参数估计方法，在一元函数的核密度估计的基础上，给出了二元函数的核密度估计形式，并通过计算估计量的MISE的最小值得出最优窗宽。

The form of the kernel density estimation of two-dimensional function based on the kernel density estimation of function is given by using nonparametric estimation , and the best bandwidth is discussed through minimizing the mean of the integrated squared error ( MISE ) .

关于密度函数随机窗宽的相合估计的注记

A note on consistent estimation of random window-width of density function

计算机X线成像技术的窗宽窗位的应用

Application of Window Width and Window Level of Computed Radiography Technology

变系数模型变窗宽局部M-估计的相合性

The consistence of variable bandwidth local M-estimation of varying coefficient models

医疗B超图片中的窗宽窗位处理方法

Window width and window level treatment algorithm for medical B-ultrasonic image

具有随机窗宽核估计的一致强相合性

The strong uniform consistency of kernel density estimates with random window size

对林分结构模拟中窗宽确定方法的研究

A Research on Determining Window Width for Simulation Stand Structures

关于谱估计中窗宽及自由度的一点讨论

On window bandwidth and degree of freedom in spectral analysis