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VideFlow: Slow Motion Player for Androidsports video analysis software mediapipe opencv computer vision ai artificial intelligence pose landmarks python app golf swing visualization tennis motion free github cv library

Sports video analysis, AI full body map, trackers & tracers.

The YouTube demo shows AI visualization of basketball, tracing the movement of the player's head, finding the maximum jump height and tracing the basketball's trajectory.

object detectionSlow Motion Player

VideFlow is a slow motion player for studying sports motions. Film yourself and play it frame-by-frame to see the detailed movement. The software is based on a video player with slow down, pause, and fast frame advance. Analysis is useful for many sporting activities, such as golf swings and tennis /badminton swings, martial arts /taekwondo, jumps in basketball, dance, gymnastics, boxing, skateboarding, snowboarding, football /soccer, athletics, fitness /gym, yoga and others.

tennis visualizationsAI Visualisations

Add AI visualizations to the video with AI computer vision data to see it more clearly. Pose body mapping tracks your body through the movement. Turn on body frame lines and draw traces of body points. You can also find limits of body points in four directions, show body frame angles and find their maximum/minimum limits.

There are two custom trackers that can follow any object in the video, such as sports equipment. Draw traces of a tennis racquet or golf club swing, trace a ball trajectory, or show the height of a skateboard wheel from the ground. Traces and direction limit visualizations are available for the trackers, and are the key analysis tools provided by the software.

slow mo libraryExport your Motions

Motions can be exported to MP4 video for reference and sharing with friends. These are watermarked in the free software but you may remove the watermark with an in-app purchase for a small one-off charge. You may save your projects at different stages in the software and revert back to the data later on. The exported videos are useful for sports coaches or fitness instructors to send to their students giving feedback on their technique.

VideFlow app runs entirely on your device . There is no need for an internet connection and you can use it anywhere. It uses pose landmarks artificial intelligence computer vision (cv) open source libraries.

github samplesFree with no Adverts

The main app is available as a free download from Google Play Store. You may try it out and see if its useful by downloading the
sports video analysis app without any charge. This is time unlimited with no adverts and includes all future updates. There is one in-app purchase available to remove the watermark from exported films. The free software runs entirely on your device and we do not collect any personal data.

Screenshots from an Android Tablet:

trace of head

basketball jump

user interface

free java codeTechnical Notes
  • VideFlow is designed for short segments of film, typically from five to thirty seconds.

  • Processing of moving images uses large amounts of memory, so it's necessary to keep the movements short.

  • It checks available system resources on startup and if necessary limits the maximum recording time, or reduces the program's internal working resolution.

  • The body mapping pipeline works best on a fast, modern android device. We recommend a CPU speed above 1.4GHz.

  • The tracker works on slower devices, but may not keep up with fast moving objects. For rapid movement you should film at a high frame rate such as 60 frames-per-second or higher. This gives the tracker more frames to work with.

We hope you enjoy using VideFlow. For feedback or technical support you may contact us here.

Available at App Stores:
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