创建用于连续测量的缓冲矩阵 [英] Create a buffer matrix for continuous measurements

问题描述

我开始在MATLAB中进行编程，在创建缓冲区矩阵时遇到一些问题.我正在尝试执行以下操作:

I'm starting programming in MATLAB and I have some problems creating a buffer matrix. I'm trying to do the following:

我不断从网络摄像头获取图像，分割后获得移动目标的质心.我需要存储质心数据进行处理，但是我不希望它占用过多的内存.例如，如果我是时间t=inf，我正在考虑将10个时间点的数据存储在一个矩阵(如循环缓冲区)中，然后写入和擦除较旧的数据，因为我需要同时使用这两个实际数据.时间(t)和时间之前的数据(t-1).

I'm continuously obtaining an image from a webcam and after segmentation I obtain the centroid of a moving target. I need to store the centroid data for processing but I don't want it to occupy too much memory. For example, if I was a time t=inf, I was thinking of storing 10 time points of data in a matrix, like a circular buffer, then writing and erasing the older data, because I need work with both, the actual data in time (t) and a previous data in time (t-1).

推荐答案

buffSize = 10;
circBuff = nan(1,buffSize);
for newest = 1:1000;
    circBuff = [newest circBuff(1:end-1)]
end

我已经测试过了，在MATLAB中运行不需要花费很多时间.探查器找不到该代码的任何瓶颈.

I have tested this, it takes no appreciable time to run in MATLAB. The profiler did not find any bottlenecks with the code.

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