使用闪光灯的

Their flash frequency is fixed so their use is limited and you may prefer to build your own circuit to flash an ordinary LED, for example our Flashing LED project which uses a 555 astable circuit.

他们的闪光频率是固定的，使它们的使用是有限的，你可能更愿意建立自己的电路，以一个普通的LED闪光灯，例如我们闪光的LED 项目，该项目使用了555稳态电路。

Add your own news to your Website or news from Yahoo, CNN, and CNET using Flash.

添加自己的新闻，您的网站或新闻来自雅虎， CNN及接受CNET使用闪光灯。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Since I shoot with TTL, I don't often use the full power that the strobe

因为我用了TTL 闪光，所以我就很少使用闪光灯的最大输出，除非我与被摄主体

Not all of the sites you visit will allow you to take pictures, for example, and if you are inside buildings such as art galleries or museums you will certainly not be able to use a flash.

并不是所有的访问的网站可以让你拍照，例如，如果你里面，如艺术画廊或博物馆你一定不能使用闪光灯建筑物。

With the popular of low power VS studio light, we lanuch high power VSD digital video flash.. High power VSD digital video flash has sophisticated digital technology LCD digital display screen. When working, LCD screen reveals the current modeling lamp brightness value, flashlight power value, photocell working state, beeper working state, anti-redeye gear, and flash using times and current voltage. These functions make users understand the functions of their products.

基于VS小功能影室闪光灯的畅销，公司推出较大功率数码影室闪光灯大VS，大VS采用尖端数码技术LCD数码显示屏，工作时显示当前造型灯泡亮度调节值、闪光功率调节值、光敏管工作状态、蜂鸣器工作状态、防红眼档位，并首创了闪光灯使用次数和电压显示功能，使用户更加容易地理解自己的产品的功能。

Oftware Description: S10 RedEyes is an easy-to-use tool to correct the red-eye effect that is often caused when an on-board flash is used with your digital camera.

10 RedEyes 是一款用于纠正当你的数码相机使用闪光灯的时候造成的红眼效果的简单易用的工具。

This works with slide film and digital.

在使用没有自动输出控制的闪光灯时，将闪光灯的感光度设为胶卷的二倍，对主体测光，机身选光圈整档，闪光灯设同样光圈。

If possible, try to take photos during the day when flash photography is not necessary.

如果可能，请尝试采取的照片在白天时，应使用闪光灯摄影，是没有必要的。

Can flash photography damage a baby's eyes?

使用闪光灯拍照是否损害孩子的眼睛？

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。