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AI in Sports: How Computer Vision is Changing the Game

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I was reading an article the other day about how computer vision is being used more and more in sports. It’s amazing to think about all of the data that’s being collected and analyzed in order to help athletes perform better. For example, by tracking players’ movements on the field, coaches can see where they need to make adjustments in order to improve their team’s odds of winning.

It’s no secret that technology is changing the sports world. From athlete tracking to computer-generated analysis, technology has made its way into every aspect of sports. But one area that has seen particular growth in recent years is the use of artificial intelligence and computer vision in sports and fitness applications.

In this blog post, we will explore some of the ways and examples of how computer vision is being used in sports and fitness, from training and coaching to injury prevention and rehabilitation. Stay tuned for a look at some of the most cutting-edge uses of AI in the sports industry!

 

Human pose estimation with deep learning
Human pose estimation with deep learning – with Viso Suite

Automated video analysis for coaches and athletes

One of the most common applications of computer vision in sports is automated video analysis. This involves using machine learning software and pattern recognition to automatically extract data from video footage of athletes in action. This data can then be used by sports teams, coaches, and athletes to quantify, assess, and improve player and team performance.

There are a number of different ways that automated video analysis can be used to improve sports performance. For example, it can be used to track an athlete’s movement patterns and identify areas for improvement. It can also be used to analyze an opponent’s movements and strategies, in order to gain a competitive edge.

 

Computer Vision person movement analysis with the OpenPifPaf framework
Computer Vision person movement analysis with the OpenPifPaf framework

Motion tracking to improve athletic performance

Computer vision has been used to track the motion of athletes for many years in order to improve their performance. For example, IBM developed a cognitive coaching system for the US Women’s National Soccer Team. The system monitors video footage of players’ performances and provides feedback in real-time.

By tracking the movement of athletes, coaches can identify areas where they can improve, and athletes can see where they need to focus their training. In recent years, however, computer vision has become more sophisticated and can now be used to track the joint and limb movement of athletes. This data can be used to improve team performance by helping coaches and athletes to understand how they are responding to training, and what areas need improvement. In addition, this data can be used to prevent injuries by identifying potential risk factors.

Computer vision models that track a player’s movements are able to identify potential risk factors for injuries. For example, if an athlete is consistently landing awkwardly after a jump, this could be a sign that they are at risk of suffering an ankle injury. By identifying early signs of risk factors early, coaches and athletes can take steps to prevent injuries from occurring.

 

Real-time video human pose detection
Video-based human pose detection and tracking

Intelligent athlete identification and classification

One of the most important applications of computer vision in sports is athlete identification and classification. This involves using software to identify and classify athletes in video footage with the use of artificial intelligence. This information can then be used to track their progress over time, or to compare their performance with that of other athletes.

There are a number of ways to identify and classify athletes in video footage. One common method is to use facial recognition software. This can be used to identify an athlete by their features, such as their hairstyle or facial structure. Another common method for identification involves tracking the movement of an athlete’s body and position in order to identify them.

 

Sports analytics and machine learning

As computer vision technology continues to evolve, so too does the way that we can use it to enhance sports performance. One area where computer vision is making a big impact is in sports analytics and big data.

Sports analytics is the process of using data to improve athletic performance. This can involve analyzing data on things such as player movements, team strategies, and game conditions. This information can then be used to improve performance by making changes to things like training methods, game plans, and player roles.

The metrics and data collected through data mining techniques and deep learning algorithms are of great importance in sports journalism. The data collection on performance analysis, in-game activity, and post-game analysis help sports journalists to provide a more complete picture of the game for their readers.

Soccer computer vision ball and player detection in sports
Computer vision ball and player detection in sports using the YOLOv7 algorithm

 

Improve batting and pitching performance

Computer vision is starting to play a larger role in bat and ball sports, such as cricket and baseball. In these sports, the goal is to hit a target (a ball) with a tool (a bat). Computer vision can be used to help players improve their batting or pitching. For batting, computer vision can be used to track the trajectory of the ball and predict where it will be when the bat makes contact.

This information can be used to help batters to adjust their swing. Pitching is another area where computer vision can be helpful. By tracking the movement of the ball, a pitcher can get feedback on their pitching mechanics. This information can be used to make adjustments to improve accuracy and control.

 

Sports player pose estimation golfer
Pose Estimation Tracking using OpenPose algorithms

Automatic refereeing with artificial intelligence

Computer vision is being used more and more in sports to help with officiating. For example, the Hawk-Eye system is a computer system used in cricket and tennis to track the trajectory of the ball and help determine if a ball is fair or foul. This system uses a network of cameras to track the ball and then compares the trajectory of the ball to a virtual model of the playing surface. This system is accurate to within a few millimeters, which is much more accurate than the human eye.

For example, the NFL is using a system called “Next Gen Stats” to track the location of every player on the field. This information is then used to help officials make better decisions, such as whether or not to call a penalty.

Detection of rule violations using computer vision in sports

Computer vision is also being used to help detect rule violations in sports. For example, the Video Assistant Referee (VAR) system is a computer system that is used by FIFA (football association) to help officials make decisions about controversial or game-changing incidents.

This system uses video footage of the match to help officials determine if a goal has been scored, if a foul has been committed, or if an offside has occurred. This system provides very high accuracy, higher than the one of the human eye.

Computer vision systems for crowd monitoring and security

AI vision applications are also being used to help monitor crowds and ensure security at sporting events, such as the Olympics. For example, vision systems use real-time computer vision to detect and track objects in a crowd – across different camera angles.

Such systems are able to detect and track objects such as bags, backpacks, and phones. This system can also be used to identify people who may be carrying weapons and detect unattended objects.

 

Abandoned Object Detection at sports events
Abandoned Object Detection at sports events and public places

Object detection and ball tracking

Real-time object detection is used to recognize objects, for example, ball tracking with artificial intelligence. This involves using machine learning algorithms to track the movement of a ball and predict its trajectory. This information can be used to improve accuracy in shooting and passing, as well as to help coaches with game strategy in sports events.

Identification of different exercises

A computer vision system can be used to track the number of reps a person does for a particular exercise with real-time video analysis. In addition to tracking the number of repetitions, a computer vision application can also be used to provide feedback on the quality of the reps. This information can be used to improve the athlete’s form and ultimately their performance with real-time feedback based on visual data.

In combination with wearable sensors, image recognition has been used to detect a variety of exercises, including squats, lunges, and push-ups. High-performance deep learning systems work by detecting the position and movement of the joints in the arms and legs with keypoints and human-pose estimation.

 

AI in sports for exercise identification and rep counting
AI in sports for exercise identification and rep counting

Injury detection with computer vision

Data science and computer vision are increasingly important for applications to detect and monitor risk factors for injuries. The Detroit Pistons use computer vision to track players’ movements during games and practice. The performance data is used to improve player performance and prevent injuries.

For example, computer vision is used to analyze the risk of ankle sprains in aerobics. Knee injuries account for the largest percentage of sport-related, severe injuries. More than 50% of the cases represent Anterior cruciate ligament (ACL) ruptures, affecting 200,000 individuals in the United States each year. Hence, researchers have used multi-angle video analysis to evaluate the lower-body injury risk of scripted athletic movements.

 

Computer vision in rehabilitation phases

In addition to detecting injuries, computer vision is also being used in the sports industry to monitor the rehabilitation process of athletes. Researchers have developed different computer vision applications, for example, to track the range of motion of patients with shoulder injuries.

The system was able to accurately track the rehabilitation process, which can help doctors and physical therapists design more effective rehabilitation programs. By tracking the movement of athletes during the recovery phase, computer vision can provide valuable insights to tailor the exercises for each individual.

 

Predicting the winner of a sporting event with AI

Machine learning algorithms can be used to predict the winner of a sporting event by tracking the movements of the athletes. By analyzing the data collected by computer vision, a system can be trained to predict the winner of a match. This information can be used to make betting decisions or just to give an idea of who is statistically more likely to win.

Systems based on Deep Neural Networks (DNNs) and Artificial Neural Networks (ANN) can be used for predicting the outcomes of football matches. In research applications, deep learning models built to predict the outcome of matches performed well in predicting the FIFA world cup 2018 matches, achieving a prediction accuracy of 63.3%.

 

Get started with computer vision in sports

There are a huge number of ways that computer vision is being used in sports and fitness, and this is only set to increase as the technology continues to develop. There are numerous reasons why companies build their own ai vision applications.

Computer vision is challenging to implement

Computer vision is challenging because it requires a number of complex technologies, including image processing, machine learning, and deep learning. All these technologies are constantly evolving and improving, which means that the algorithms used in computer vision applications also need to be constantly updated. In addition, computer vision systems need to be able to deal with a variety of different input types, cameras, and processing hardware.

Why organizations build their own systems

One of the primary reasons is that the limited turnkey applications may not fit the specific needs of the company. In many cases, businesses need to customize ai applications to meet the specific needs of their industry or sector. For example, a company may need to track the movement of objects in a very specific way or may need to detect and recognize objects in a certain environment.

Another factor is that companies want to avoid sharing their data, and comply with strict privacy regulations that do not allow transferring visual data to the cloud. In addition, businesses may need to integrate the application with other software systems.

Implement computer vision with Viso Suite

AI platforms like Viso Suite provide a way to rapidly build, deploy and scale computer vision applications in sports. The end-to-end computer vision platform (get the Whitepaper) is powered by viso.ai and helps companies to secure sports events and improve the performance of athletes.

Get in touch and learn more about how your organization can successfully deliver real-time computer vision in sports.

Explore more computer vision applications and ai technologies in related articles:

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