边缘检测

Distributed detection ; CFAR ; homogeneous background ; multiple target situations ; clutter edge

分布式检测； CFAR ；均匀背景；多目标；杂波边缘

New algorithm is applied to multiple test video sequence, and results are promising.

经多个测试视频流验证，该方法可以较好的保持脸区的边缘轮廓且具有实时性较好，检测和定位精度高以及对变化不十分剧烈的光照等环境条件不敏感等优点。

The results of the experiment indicate that the improved algorithm has a better accuracy and precision in the edge detection.Key words: edge-detection; Canny operator; nonlinear diffusion; threshold

通过对实验图像的分析表明，该改进算法对含噪图像的边缘提取具有较好的检测精度和准确性。

A fast orthogonal edge projection algorithm is proposed for real-time inspection of film defects on production line.

为实现对胶片弊病的实时识别，提出了一种正交边缘投影快速检测算法。

The cause of this problem is usually the motion of not only the objects but also the camera panning.

对轮廓中目标边缘的检测，我们使用Canny算子。

Methods In this study,a plasmid vector,rAd5,and rAAV2 were used to transfect rat cochlear marginal cells of stria vascularis by injection into the perilymph through the round window membrane,and the transfection efficiency, target tissue accessibility, cell/ tissue toxicity, time course of expression, and effect on hearing were evaluated in vivo and in vitro.

结果三种载体对原代培养的大鼠耳边缘细胞的转染研究发现，腺病毒的转染效率最高，而腺相关病毒转染对细胞活性影响最小。rAAV2和rAd5对大鼠耳蜗组织的感染实验发现，腺病毒和腺相关病毒携带的增强型绿色荧光蛋白可在多种耳蜗组织中及转染对侧耳蜗组织表达，且并不引起明显的耳蜗组织细胞凋亡。rAAV2携带的EGFP基因在第90天时仍可检测到大量表达。rAd5携带的EGFP基因在第30天时表达明显减弱。

For bottle image, lines in the matter brim was detected by means of Hough Transform and then dimensions and perpendicularity tolerance were obtained.

对药瓶图像，通过Hough变换的方法，检测出边缘几条直线，据此求出尺寸公差与垂直度。

Methods The expressions of MAGE-3 in tumor tissue, para-tumor tissue of (5±1)cm from border of tumor tissue, tissue of resection border and polypus were detected by RT-PCR. Results MAGE-3 expression was positive in 14 of 33 (42.42%) samples of rectal cancer, 6 of 33 (18.18%) of para-tumor tissue, and 5 of 33 (15.15%) of resection border tissue respectively.

采用RT-PCR法，对33例直肠癌患者的癌组织及其相应距肿瘤边缘(5±1)cm的癌旁组织和手术切缘以及3例直肠息肉标本的MAGE-3的表达情况进行检测，并对RT-PCR扩增产物中的目的基因片段进行DNA测序验证。

In this process, a window scans the image with a line and row of reiterative pixels, which can make sure the connection of the edge and the detection of the details in the partial image.

其中，采用图像窗口迭进滚动方式扫描，确保了边缘曲线的连续与局部细节的检测。

Using the method of edge and gray scale detection, the Plasmodium vivax schizont can be detected and identified.

初步探索采用边缘和图像灰度联合检测的方法能够识别间日疟原虫薄血膜的裂殖体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。