Show HN: Automatic Baseball Pitching Motion and Trajectory Overlay in Realtime

Re:Show HN: Automatic Baseball Pitching Motion and Trajector... by _31 on Monday January 04, 2021 @02:18AM (#25628574)

This looks great! How much data (clips/pitches) did you train your model on?

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Re:Show HN: Automatic Baseball Pitching Motion and Trajector... by chony on Monday January 04, 2021 @04:05AM (#25629063)

Thanks for asking! The only model I used in this project is the YOLOv4 object detection model to detect the ball in each frame. I collected about 200 images to train it.

For the other parts like the tracking and the overlay timing, I programmed it by myself.

I implemented SORT algorithm for tracking the ball and some programming logic to capture the overlay timing from each clip.

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