查询词典 pixel

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

By analyzing the results of LSNR measurements for samples with different components, and comparing with the media of Aprilis Corporation, we give the suggestion to optimize the material components in the future. In addition, based on the physical mechanism of intra-page crosstalk noise, we proposed the Pixel-Matched Spread Function, and a simplified deconvolution arithmetic to suppress the intra-page crosstalk noise.

另外，在分析数字数据全息存储中页内串扰噪声产生的物理过程的基础上，提出了像元匹配扩散函数的概念，并提出了一个反卷积算法来抑制页内串扰噪声，计算机模拟和实验结果都证明我们提出的PMSF算法可以有效的抑制页内串扰噪声，提高恢复数据页的保真度。

LSF model can calculate the effective emissivity of the nonisothermal and heterogeneous pixel, but the data must be atmospherically corrected when using satellite images.

基金项目：国家九五攀登预选项目(编号：95 Y 3 8)，国家重点基础研究发展规划项目(编号：2 0 0 0 0G77900 )，美国NASA(编号：NAG5 72 17)，高等学校骨干教师资助计划，中国博士后科学基金资助项目资助

We've had comments for some time pointing to Canon developments in pixel binning technologies, and before long are expecting that much as you currently make a trade-off between noise and ISO, there will be more such options available.

我们已经评论了一段时间指向佳能发展像素binning技术，并预计在不久的大部分为您目前作出权衡噪音和国际标准化组织，将有更多这样的选择。

The beam quality of a LD pumped Nd∶YAG laser is measured with CCD camera system. The background characteristics of the CCD system and the influence of the size of integral box upon measurement results are investigated. The following conclusions can be derived form experimental results:(1) Background is strongly depend upon exposure time and pixel binning,while temperature has an ignorable effect upon it,whether with or without ambient light.(2) A 5%-cut is the minimum value in order to get a reasonable result.

采用CCD系统实验测量了LD泵浦Nd∶YAG激光器的光束质量参数，研究了CCD系统的背景噪声特性和积分区域选取对光束质量参数测量的影响，从实验数据中得到以下结论：（1）在有、无背景光两种条件下，背景记数强烈地依赖于曝光时间和像素的合并，温度影响可以忽略不计，（2）为获得M2合理的测量结果，至少要选择5%积分区域。

In self-organization freeform reconstruction method based on triangulation, each pixel of an image is taken as a bion of self-organization system, and each bion and its two neighbors constitute a triangular surface patch, then this bion adjusts its state in order that the triangle element satisfies the Lambertian reflectance model.

基于三角片化的自由曲面自组织重构方法将图像中的每个象素视为自组织系统中的生命单元，每个生命单元与其相邻的两个单元组成一个三角片，该生命单元调整自己的状态，使其与邻域单元构成的三角片按朗伯反射模型满足原始灰度图像的要求。

A method for measuring the size of the dispersed spot of star sensor optical lens is presented. A measurement system consisting of a collimator, a rotary table and a CCD cameral was implemented to measure dispersed spot. After a image is acquired, a method of bibubic interpolation pixel subdivision is used to pick up the gray value of the image, and the size of dispersed spot is calculated by Rayleigh criterion.

提出了一种星敏感器光学系统弥散斑尺寸的测试方法，主要是利用平行光管、转台和CCD显微摄像系统组成弥散斑测量系统，采集图像后，采用双三次插值像元细分，提取图像中灰度值，依据瑞利判据计算弥散斑尺寸。

Colors screens..Studioes inner LED the pixel of sizes general are 2-10 centimeters,Often adopt Pa severalplant Neng accrue different base color LED Kuan core capsulation Cheng an?

LED显示屏如果想要显示图象，则需要构成像素的每个LED的发光亮度都必须能调节，其调节的精细程度就是显示屏的灰度等级。

Flex GIF Annimator supports pixel painter and vector graphic draw, support creating objects tween animation, and has a flexible palette options for full control over colors and built-in Windows trick banner maker, screen capturer, morpher, and nature image matting tool.

弯曲的GIF annimator支持像素画家和向量图形借鉴，支持创建对象吐温动画，并具有灵活的调色盘，选择完全控制权的颜色和内置的Windows的伎俩旗帜，制造商，屏幕上收集器， morpher ，与自然的形象，垫工具。

According to this analysis, a new pixel-level fusion algorithm based on the activity and similarity of source images is proposed and its performance is tested to be superior to the congeneric algorithms.

在以上分析的基础之上，作者提出了一种基于源图象活跃度和相似度的像素级融合算法，经过实验比较证明该算法的融合结果质量较同类算法有大幅度的提高。

The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.

第二个就是从你的饮食中减少一百卡路里，只是相当于一大汤匙的黄油。

This is where the Rorschach test comes in.

现在，罗氏测试就出现了。