根据C#中接收到的图像事件计算FPS

问题描述

大家好，

我从串行端口&我将构建图像数据包&在C#中引发收到的图片事件.现在，我想知道我每秒收到多少张图像( FPS - F rame  P er S 第二).

I receive bytes from serial port & I will construct Image packet & rise a Image received Event in C#. Now, I want to know how many Images I'm receiving per second (FPS-Frame Per Second).

我尝试了秒表课程

Stopwatch st = Stopwatch();
int FPScount = 0;
double prevMilliSec = 0;
double currentMilliSec = 0;

私有无效serial_ImageDataReceived(对象发送者，ImageData e){ 如果(st.IsRunning) { st.Start(); FPSwatch = true; } 别的 { TimeSpan ts =经过的时间； currentMilliSec + = ts.TotalMilliseconds-prevMilliSec; prevMilliSec = ts.TotalMilliseconds; FPScount + = 1; 如果(currentMilliSec> = 1000.0f) { text_string + ="FPS:" + FPScount.ToString()+""+""MilliSeconds:" + currentMilliSec.ToString()+"\ r \ n"; FPScount = 0; currentMilliSec = 0; } }}

private void serial_ImageDataReceived(object sender, ImageData e){ if (st.IsRunning) { st.Start(); FPSwatch = true; } else { TimeSpan ts = st.Elapsed; currentMilliSec += ts.TotalMilliseconds - prevMilliSec; prevMilliSec = ts.TotalMilliseconds; FPScount += 1; if (currentMilliSec >= 1000.0f) { text_string += "FPS: "+FPScount.ToString()+" "+ "MilliSeconds:" + currentMilliSec.ToString() + "\r\n"; FPScount = 0; currentMilliSec = 0; } }}

如果我打印文本字符串，则会得到以下信息:

If i print text_string, I get the following:

FPS:13百万秒:1029.1345
FPS:13&MilliSeconds:1033.2451
FPS:13&MilliSeconds:1038.7088
FPS:13&MilliSeconds:1034.3744
FPS:13&MilliSeconds:1036.5768
FPS:13&MilliSeconds:1036.3706
FPS:13&MilliSeconds:1028.3304
FPS:13&MilliSeconds:1034.6186
FPS:13&MilliSeconds:1031.7196
FPS:13&MilliSeconds:1028.2347
FPS:13&MilliSeconds:1026.7377

FPS: 13  MilliSeconds:1029.1345
FPS: 13  MilliSeconds:1033.2451
FPS: 13  MilliSeconds:1038.7088
FPS: 13  MilliSeconds:1034.3744
FPS: 13  MilliSeconds:1036.5768
FPS: 13  MilliSeconds:1036.3706
FPS: 13  MilliSeconds:1028.3304
FPS: 13  MilliSeconds:1034.6186
FPS: 13  MilliSeconds:1031.7196
FPS: 13  MilliSeconds:1028.2347
FPS: 13  MilliSeconds:1026.7377

从秒表时间信息中计算FPS的这种精确方法是吗?

Is this accurate way of doing to calculate FPS from the Stopwatch time info ?

谢谢

推荐答案

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 贾森·王(Jason Wang)

  Jason Wang

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