What pose estimation is, and what it can and cannot tell you about your form

Pose estimation is the technology that lets a phone video of your swing become a moving map of your joints. It is powerful, and it is also narrow. Being honest about both is the point of this page, because the apps that overclaim what it can see are the ones that lose your trust.

What it is

Pose estimation locates your joints, shoulders, elbows, hips, knees, ankles, in every frame of a video and connects them into a skeleton that moves as you move. It needs no sensors, no markers and no special hardware, just the footage. A fuller definition is in the glossary. The short version: it turns a clip into frame-by-frame data about how your body actually moved.

What it can tell you about your form

• Whether your shoulders and hips rotate, and how far
• Whether your weight moves from your back foot to your front foot
• Where your contact point sits relative to your body, and how high
• Your stance, your balance, your swing path and your finish

These are all body facts, things you genuinely cannot judge from inside your own swing, and they are the parts of technique that most often need fixing.

What it cannot tell you, and why saying so matters

A skeleton is not the whole picture, and pretending otherwise is exactly the failure mode that makes people distrust these tools. Pose estimation does not read your paddle-face angle. It does not measure spin. It does not know where the ball landed or whether the shot was the right choice. And if your camera angle hides something, a front-on clip cannot judge weight transfer the way a side-on clip can, then the honest answer is that the clip could not check it, not a confident guess.

This is why Dinklix reports what it could not see alongside what it could. The tech is only as trustworthy as the limits it admits to. Pose estimation is a very good way to see your body. It is not a way to see everything, and a tool that claims otherwise is the one to be wary of.