How can i acquire/process an image and insert data in a running loop as it becomes available?

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M 2014-10-12

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https://ww2.mathworks.cn/matlabcentral/answers/158319-how-can-i-acquire-process-an-image-and-insert-data-in-a-running-loop-as-it-becomes-available

关闭： MATLAB Answer Bot 2021-8-20

Hello,

I'm working on an image recognition project using a webcam, output is used to control a process. Unfortunately the webcam I use has a limited frame rate (15 fps), for a good control of the process I need data at double or triple that rate.

Fortunately the process i relatively simple and can be modelled, so what i'm hoping to do is to use a Kalman type of system where one every 2 or 3 cycles actual data is used. The rest of the data generated by modeling.

My question is how can i have a (separate?) matlab process acquiring images and inserting the data as it becomes available in to a modeling/processing loop that runs at a different speed? I.e. the modelling/processing loop is not affected by the speed of the camera

Thanks,

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David Barry 2014-10-12

Are you using MATLAB or Simulink? Do you have to add the simulated frames in "real-time" or can they be added after you have captured all of the webcam images? What is happening with the data downstream?

Image Analyst 2014-10-12

Are you using the webcam plugin, or the Image Acquisition Toolbox? Why can't you just call some function like ProcessMyImage() or ModelMyImage() after you snap each image?

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