openni - 使用 OpenNI2 从 Xtion Pro/ Kinect 导出图像的基本代码

Question

我已经将 Asus Xtion Pro 插入我的 PC，现在正尝试运行基本的 OpenNI2 代码以从相机中导出快照。我能够运行 OpenNI2 包附带的示例项目（例如 SimpleViewer），所以我知道它正在“工作”，但我很难超越它。

这个库的文档和操作方法似乎很稀疏，我在网上找不到一个可以做我想做的实际示例，所以如果有人有可用的代码，那就太好了以下，我将不胜感激：

1. 设置深度和彩色图像的视频流。
2. 定期拍摄这些流的快照（例如每 0.5 秒）
3. 以 .png 之类的格式保存它们

谢谢

Answer 1

This is not a hard task, try using an example from the openni2 samples. I have a tool that you can tweak to do the three tasks (sample here)

In 1) what exactly you mean with video stream? you want to compress the images into a movie? or just to show them?

If it is just to show them you can take a look to the sample I linked before.

Basicly what you have to do is:

1. initialize the openni and the devices
2. start the streams you need (usually depth and color)
3. show each frame in a window (i used opencv for that) [this will do 1)]
4. every x number of frames or time save the frames (i used opencv for this task too) [this will be 2 and 3)]
5. create a key interface to exit properly (can be done with opencv too)

All of this is things are done in a way in the sample I gave you, but you can also ask me if you want specific details about it.

I hope this helps you