Video Analysis in Real Time: Instantly Send Info to the Bench

By Nacsport

05-May-2016 on Tips

6 minute read

At Nacsport, when we speak about "real-time", there's always some questions. What exactly does this term mean? What implications does it have for video analysis?

 

Well, that depends on what the context of real-time is, but basically it means any analysis work that is undertaken whilst the match is still in progress.

 

In this article, we've tried to group all the options that exist within the realm of real-time and, as we read on through THIS article, we'll try and define real-time in a bit more detail...

real time analysis darren lewis

 

When talking about working in real-time, we distinguish these three types of tasks:

 

  • Registration in real-time. This simply means to register actions on your button template whilst the game is still in progress. It refers to data collection, tagging, coding, or whatever you call it. This can be done in any version of Nacsport (and in Scout+ onwards without a video source) or from the Nacsport Tag&view app for iOS.

 

  • Video capture in real-time. Refers to filming with your camera and sending the images to your computer with a capture device. Normally done whilst registering actions.

Analysis in real-time. In this case, it includes the previous two actions as well as revision and some analysis of the data you’ve collected. Filter actions select them and share them with other members of the team. This can be done during any break in play or shared with the bench minute-to-minute.

 

Real-Time Analysis: Sharing Data Between Two Devices 

 

In this article, we’ll concentrate on sending real-time analysis to the bench, that is, on the up-to-the-second data that we send between one device and another. 

 

Every Nacsport program (except Basic) allows you to share different levels of information (dashboards, videos and / or drawings) with other receiving devices (other computers / and / or mobile devices) through a web server. 

 

To transmit data in this fashion, a local network (LAN) must be set up. 

 

real time analysis diagram

 

What Type of Data Can Be Sent?

 

The type of information that can be sent entirely depends on the Nacsport license installed on the sending device. In this comparitive table, in the “real-time” section, you can see the difference between each version of the program but basically the differences are as follows:

 

  • Share static dashboards. From Basic+ to Elite.

 

  • Share videos of registered actions. From Scout+ to Elite.

 

  • Share drawings made on videos and presentation lists. In Pro+ and Elite.

 

 

What Equipment Is Needed for Dharing in Real-Time?

 

In order to transmit data in real-time, you need:

 

  • An emitting device. Integrated with a video camera, capture device and Nacsport software (not Basic, as we’ve already said).

 

  • An access point. To connect the emitting device to the receivers. Basically, a Local Area Network (LAN) that doesn’t need to be connected to the internet.

 

  • Receiving device. This can be a computer, tablet or mobile. The access will be done through any common web navigator (although we usually recommend Firefox or Chrome). 

 

In this video, we show a real example of how real-time transmission works with the Spanish federation of field hockey.

 

The users who receive the data can create personalised presentation lists from the videos received (this is only available in Nacsport Elite). These lists are useful for selecting the action and showing them during a break in play such as half-time.

 

Note: If you want to reproduce a list somewhere that doesn’t have access to the LAN network, you must download the videos to your device. This should be done through Firefox.


Coach Station. Instantly Send Videos to the Bench



Coach Station, one of the products in the Nacsport range, allows you to temporarily convert any Nacsport license into a data receiver that can receive videos from Pro+ or Elite. What type of information? Principally, videos, which can be reviewed through the data matrix or the dashboard.

Usually, Coach Station is situated close to the bench where it can easily be accessed by one of the coaches and used to make decisions throughout the game.

 

Coach Station can be set up through the same LAN as we mentioned earlier. When playing at home this is easy to do, as the infrastructure will already be in place. It may be a little more difficult away from home and, in this case, we recommend a mobile LAN network which can be obtained using a mobile antenna such as the NanoStation Loco M5.

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