你还可以创建一个环境光源以产生无方向性的光，或者点光源，如果你想对你场景中的特定区域聚焦。
You can also create an AmbientLight which will produce a directionless light, or a SpotLight if you want to focus on a particular part of your scene.
Lytro公司的相机产生的文件，就像这一个，用户可以点击某一个区域从而向这一区域聚焦。
Lytro's camera produces files, like this one, where a user can click on an area to bring it into focus.
可是，因为人们戴了口罩，所以认为自己已受到保护，就可能出入于人群聚焦区域。
However, because people are wearing a mask they will think they are protected and may go into crowded areas.
热成像摄像机聚焦在脸部周边区域，那里的皮肤比较薄，可以轻易监测到温度变化。
The thermal camera focused on the region around the eye because the skin is thinner there, making its temperature changes easier to spot.
拍摄肖像(垂直画面)时要聚焦在一个特定区域；拍摄风景(水平画面)要创造一个宽阔的景象以包含更多的元素——这样拍摄通常是最好的选择。
It's often best to shoot portrait (vertical) when focusing on a specific area and landscape (horizontal) to create a wide image incorporating more elements.
在乐谱区域中使用MediaPanZoom聚焦于乐谱边缘的注解，并随播放跟踪标记。
Use MediaPanZoom in the score region to focus on annotations made in the margin of the score and to follow the notation as it is played.
绝大多数的区域描述报告往往聚焦在以城镇内某一个起始点出发，一定驾驶距离所勾勒出来的范围内。
Most area profile reports are used to focus on an area that falls within a defined drive-time distance (also known as a contour) from a central point in a particular city or town.
一个完善的自动聚焦系统软件应包含聚焦评价算法、聚焦区域选择算法以及聚焦搜索算法。
A perfect auto-focus system software should include focused evaluation algorithms, focused region selection algorithm and auto-focus search algorithm.
自动聚焦算法包括三个模块：聚焦区域选择、聚焦评价函数和极点搜索算法。
Autofocus algorithm consists of three modules: focus region selection, focus measurement function and peak searching algorithm.
为了对不同的多聚焦图像进行有效融合，提出了一种小波域中基于区域特征的自适应多聚焦图像融合方法。
To fuse different multi-focus images effectively, an adaptive fusion method of multi-focus images based on regional features in wavelet domain is proposed.
与其他聚焦方式相比，多元组合聚焦超声换能器具有较大的聚焦深度、较理想的焦域以及较高的声强度等优点，并且聚焦区域和声强度易于控制。
Comparing with other kinds of focusing methods, it has a lot of merits: a deeper focal length, a greater ultrasound intensity and an ideal focal region and all of them are easily controlled.
该算法定义了图像区域的相对清晰度判定指标，并根据多焦距图像像素邻域的相对清晰度来逐个选取聚焦清晰的像素点从而构成融合图像。
To overcome this problem, a novel fusion algorithm is proposed, which is based on a new image region focus measure, Relative Activity Level (RAL), presented in this paper.
一般地说，区别较差相机与较好相机的一个性质指标时该相机能以多快的速度聚焦——在地反差的区域上能以多高的清晰度聚焦。
Generally, one quality that separates the better cameras from the lesser cameras is how quickly the camera can focus — and how well the camera can focus on areas of low contrast.
该评价函数和区域选择聚焦技术可以用于高精度的自动微操作作业中。
The results also show that this focus measure and selective autofocusing techniques can be widely applied to automated micromanipulation;
聚焦是针对兴趣区域的聚焦，聚焦评价函数完成对兴趣区域的离焦程度评价，它是一种有参考的图像质量评价。
FMF evaluates the defocus degree of interesting region image. Focus measurement is a kind of reference image quality evaluation.
孔径聚焦技术是B型超声诊断仪中一种提高近场区域横向分辨力的有效手段。
The aperture focusing technology is an effective means of the improving near field lateral resolution in ultrasonic diagnostic B-sanner.
利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。
Based on the focalization ability of time reversal theory to the wave origin, the wave propagation was rebuilt by an image method which displays the damage as the focusing point.
科学家们的研究聚焦于出生后的神经干细胞位于侧脑室或腔的内层，在一个被称为室下区域(SVZ)的地方。
The scientists focused their study on postnatal neural stem cells that lie next to the lining of the brain's lateral ventricles, or cavity, in a region known as the subventricular zone (SVZ).
本文提出了一种基于区域特性的NSCT多聚焦图像融合新算法。
This paper proposed a new multi-focus image fusion algorithm based on the combination of NSCT and regional characteristic.
摘要：超声相控阵聚焦能将超声能量聚焦于被检区域，使检测结果更加明显，但缺陷定量结果受相控阵仪器聚焦深度的设置影响较大。
Abstract: ultrasonic phased array focusing ultrasonic energy on the inspected area to make the test results more obvious. The focus depth setting had great influence in defect quantification.
该技术旨在能从针对同一场景不同聚焦的图像中提取出聚焦区域融合成所有目标对象都是清晰的。
So it is valuable for studying multi-focus image fusion. Multi-focus image fusion is the main topic in this paper.
更合理规划，按照几个板块、几个功能来进行区域品牌的打造，形成集体效应和聚焦功能。
It has more rational planning, according to a few blocks, a few features to regional brand building, the formation of collective effects and focus.
这些结果表明，改变聚焦透镜的焦距和聚焦透镜到轴棱锥间的距离以及光阑半径，可有效地改变局域空心光束的暗中空区域。
It is shown that by changing the focal length of focal lens and the distance between the axicon and the lens, the center of dark of the bottle beams can be altered effectively.
利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。
Based on the focalization ability to the wave origin of time reversal theory, the wave propagation image is rebuilt to display the damage.
利用时间反转法对波源的自适应聚焦能力，重建信号传播波动图，通过信号聚焦显示损伤位置和区域。
Based on the focalization ability to the wave origin of time reversal theory, the wave propagation image is rebuilt to display the damage.
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