边缘检测

It realized the testing goal by using a strategy of separating object, extracting edge, perceiving contour, competing in the saliency of contour, choosing and transferring attention focus.

该模型通过分离目标、提取边缘、感知轮廓、轮廓显著度竞争、注意焦点选择及转移等策略，实现对目标的检测。

The length of straight line and the angle serial character was analyzed, and then the cell shape was described.

该方法利用改进的直线HOUGH变换对细胞图像边缘进行直线检测、选择直线端点。

The paper has studied and analyzed the ship target on water surface detailedly.

本文详细研究和分析了水面船舶目标的特点，针对船舶是人造目标，船体上布满了有棱有角的结构，在图像中存在众多的长直线边缘的特点，提出了使用角点和线段特征的检测方法，并根据水面和船舶的不同反光特征，实现了一种基于关系稳定性的船舶区域分割算法。

It is more appropriate for narrow telephonic speech.

该算法突出的优点是适应的信噪比动态范围较宽，即使信噪比只有3.5dB，也能准确地检测到边缘时间点。

Objective To study a new computerized automatic method for endocardial boundary estimation and tracking in sequential echocardiographic images.

严加勇 ，庄天戈目的探讨一种对心超图中心脏内膜边缘进行检测的自动化方法。

Firstly, the K-means clustering algorithm was improved by using the rough set theory to determine initial cluster centroids. On the basis of K-means clustering segmentation and region connection, the edges of the target and backgrounds were extracted accurately and intactly. After boundary tracking, the potential target regions were detected according to the characteristics of the extended target.

在预分割阶段，运用粗糙集理论求取初始聚类中心，在K-均值聚类分割和区域连通的基础上，检测图像边缘并进行边界跟踪，对于获得的目标和背景团块根据扩展目标特性确定目标潜在区域。

Simulate the condition of temperature and energy control in percutanous MWA for HCC to ablate SMMC-7721 cell strain suspension.There were five experiment groups:A.control group,B.45℃10 min group,C.50℃3min group,D.54℃3min group and E.60℃instant group.Detection for apoptosis was performed at 30 minutes and 2 hours after ablation.2.Thirty-two C57 mice were undertaken hypodermic inoculation of Hepal-6 tumor piece at right groin as ablation tumor and at left groin as observation tumor one week later.The mice with double tumors were separated into four groups:A.control group with no treatment,B.MWA group treated with MWA only,C.mDC group treated with MWA and subcutaneous injection of mature dendritic cells sensitized by neoantigen of Hepal-6 cell strain,D.iDC group treated with MWA and peritumoral injection of immature dendritic cells without neoantigen sensitization.

模拟肝癌微波治疗中常用消融区边缘的温控和能量条件，消融人肝细胞癌株SMMC-7721细胞悬液，分为五组：A、对照组，B、45℃10min组，C、50℃3min组，D、54℃3min组，E、60℃即刻组，消融后30分钟及2小时进行凋亡检测。2.32只C57小鼠左侧腹股沟皮下接种Hepa1-6鼠肝癌细胞瘤块作为消融瘤，间隔1周，右侧腹股沟皮下接种瘤块作为观察瘤，成瘤后分为四组：A组，对照组，不行治疗；B组，微波组，仅微波消融小鼠消融瘤；C组，成熟DC组，微波消融小鼠消融瘤，并于小鼠双侧腋下注射肿瘤抗原致敏的树突状细胞；D组，未成熟DC组，微波消融小鼠消融瘤，并于消融瘤周注射未成熟树突状细胞。

Using open and close operations to wipe off the noise after presolution, and enhancing the gray level partly, the clear and continuous edge can be got by Canny operator.

在经过预处理的基础上，运用形态学的开闭运算滤除噪声，局部灰度增强后用Canny算子检测得到清晰的连续的边缘。

All the 45 rabbit-models were sacrificed after treatment and their tissues,including peripherial tumor and central tissue of the ablation area,were sectioned, embedded in paraffin, fixed in 10% Formalinand and spitted constantly with 4μm–section.

切取肿瘤中心组织及边缘组织为检测标本，全部组织经10%Formalin固定，常规石蜡包埋，4μm连续切片，对取材标本行HE染色观察治疗后病理形态学变化。

Diagnosis/testing. A diagnosis of ocular albinism is probable in the presence of congenital nystagmus, iris translucency, and significant hypopigmentation of the ocular fundus periphery in males with normal skin pigmentation and foveal hypoplasia, reduced visual acuity, and aberrant optic pathway projection, as demonstrated by crossed asymmetry of the cortical responses on visual evoked potential. X-linked inheritance is documented by either a family history consistent with X-linked inheritance or the presence of typical carrier signs (irregular retinal pigmentation and partial iris transillumination) in an obligate carrier female.

诊断/检测。对于皮肤色素沉着正常、中央凹发育不全、视敏度降低以及视径投射异常（VEP，表现为视觉诱发电位中皮层反应的交叉不对称）的男性患者，当存在先天眼球震颤、虹膜半透明以及显著的眼基底层边缘色素减退的症状时，可被疑似诊断为眼白化病。X连锁性遗传则以存在与X连锁遗传一致的家族病史，或在一个应当为携带者的女性中存在典型的携带者迹象（视网膜色素沉着不规则以及部分虹膜透射）而被确认。

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。