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[No audio]

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Welcome to this new lecture of the course,

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and this is quite special, I happen to

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be on camera because in this lecture,

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what you're going to build is a program

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that detects object, moving objects in

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front of a computer webcam, and then

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what it does, it records the time that

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the object entered the webcam. So the

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video frame and the time when the

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object exited the video frame.

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So now, there's moving object

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[No audio]

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in the frame, and if I go wait, you see that

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and there is no green rectangle now in the video

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and now I show up again, move out

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again, and so on. So we're going to

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build this application from scratch

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using Python, and yeah, we have a lot of

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things to learn, such as image

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processing and video processing, as

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well, and so on, and lastly, what we do

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then if you press Q for quit, and what you

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get is a graph, and as I said the graph will

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show the times where the object enter

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the frame. So we're dealing with an

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interactive graph here, and yeah, these

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are the times when the object entered

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the webcam, like this one or this one

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here, and here it lasts longer and so on. This

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can be a great application if you want

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to detect objects. You get through, you

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can put this application, this Python

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program in a Raspberry Pi Server, for

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instance, which is a small server and

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you can put it somewhere and maybe want

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to detect animals. You may want to know

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when this animal is entering the frame

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and when it is exiting, or with people as

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well, if there is the case. And so yeah,

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this is a program and I hope you

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enjoyed. We have quite a lot of code to

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write, so let's get started and I'll

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talk to you in the next lecture.