Capturas de ecrã

Descrição

“Tennis Serve Tracker” measures tennis serve speed using video processing and image recognition technologies. Why is it worth trying it when there are similar apps on market? Because all these apps can be split on 2 categories - first are the ones that do it very, very bad or simply invent measured speed and won’t be mentioned here at all. The others do measure the serve speed, but it’s a lot of manual interactions with setting multiple parameters, like choosing deuce/ad serve type, server height, marking server and ball positions on the standard court image template that has no resemblance to the actual court we see with our eyes. These actions drastically increase an error margin, time and effort required to perform a single serve speed measurement - does it match fast pacing tennis game we all love?

So how “Tennis Serve Tracker” measures tennis serve speed? The fundamental difference is that it processes every single frame in the video feed and recognizes the court on the image frame. It allows to reconstruct 3D world coordinates of the server and ball from the image coordinates. Application provides constant feedback by highlighting court lines, net and a ball on the screen. Now having the time measurements from the video and ball world coordinates application can calculate your serve speed with a great accuracy, most times way better than a commercial speed gun (see doppler effect cosine factor error)! Visit “Demo Videos” application website page for videos with real time side by side comparison between speed radar gun and the app.

Final speed display is unlocked by lifetime "Premium" upgrade just for a price of a single tennis balls can. This app is a valuable tool for every tennis player who would like to improve their game and have a great serve!

Novidades

Versão 2.1.6

- Added short camera flash just before recognition starts to provide visual feedback to the server;
- Added recognition delay feature to start service tracking after predefined timeout in settings. Combined with "Burst" mode allows recognitions taken in the loop automatically without user interaction - single person can use the app with a tripod now.

Informação

Fornecedor
2117497 ONTARIO INC.
Tamanho
26.3 MB
Categoria
Desporto
Compatibilidade

Requer o iOS 8.0 ou posterior. Compatível com iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular , iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro de 12,9 polegadas, iPad Pro de 12,9 polegadas Wi‑Fi + Cellular, iPad Pro de 9,7 polegadas, iPad Pro de 9,7 polegadas Wi‑Fi + Cellular, iPad (5.ª geração), iPad (5.ª geração) Wi‑Fi + Cellular, iPad Pro de 12,9 polegadas (2.ª geração), iPad Pro de 12,9 polegadas (2.ª geração) Wi‑Fi + Cellular, iPad Pro de 10,5 polegadas, iPad Pro de 10,5 polegadas Wi‑Fi + Cellular, iPad (6.ª geração), iPad Wi‑Fi + Cellular (6.ª geração), iPad Pro de 11 polegadas, iPad Pro de 11 polegadas Wi‑Fi + Cellular, iPad Pro de 12,9 polegadas (3.ª geração), iPad Pro de 12,9 polegadas (3.ª geração) Wi‑Fi + Cellular, iPad mini (5.ª geração), iPad mini (5.ª geração) Wi‑Fi + Cellular, iPad Air (3.ª geração), iPad Air (3.ª geração) Wi‑Fi + Cellular, iPad (7.ª geração), iPad (7.ª geração) Wi‑Fi + Cellular, iPod touch (6.ª geração) e iPod touch (7.ª geração).

Idiomas

Inglês

Idade
4+
Copyright
Preço
Grátis
Compras integradas
  1. "Premium" upgrade 5,49 €

Suporta

  • Partilha com a família

    Ao ativar a Partilha com a família, a app pode ser utilizada por 6 membros da família.

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