New areas for camera use in sports

Like I mentioned in the previous post here on the blog, I’ve gotten quite interesting in the future of cameras. Which technology they will have, how they’ll differ from the cameras we know today, and the new areas these will be useful in. I’ve just stumbled across an area in which cameras are used which was unknown to me – football.

I’ve never been much of a sports enthusiast myself, but one of my best friends is. He also likes to bet on his team in Premier League, and he keeps sending me links to a page called oddsexpert.co.uk so I can join him. I actually used their reviews-section and signed up to a betting site – and what’s worse is that I actually enjoyed playing. So I’ve gotten a bit into football lately – hence this blogpost.

I was watching a match that I had placed a bet on, and in the second half there was a weird situation. I thought that my team scored a goal, but the referee didn’t see that the ball crossed the goal line. I figured that there must be some way to measure if a ball crosses the line or not – and apperantly there is.

Hawk-Eye - a camera system used for football matches!

It’s called goal-line technology. The technology i read about was called Hawk-Eye, but I’ve also come to the understanding that there are other systems as well. The Hawk-Eye system uses high-speed video cameras, that can assist the referee in his decision-making. The network of cameras can track the ball’s position in the field at any given time using triangulation. Since the technology can know the ball’s position, Hawk-Eye can tell when the ball has crossed the goal line. What happens then is that the system will alert the match officials through radio transmission or the referee´s watch.

The camera technology is obviously very smart, and it can even predict the future path of a ball. It can tell how the ball would have traveled if, for example, it wouldn’t have touched a defender. Since visual displays like these are possible, the system will probably be popular for TV-broadcasted matches. I know for sure that I would watch the camera’s work in amazement!

 

Camera history – interesting and fascinating

So I’m still stuck in the facts about cameras and everything there is to know about them. I’ve now come to the history, since I got a bit curious about how the camera really works and how it came to be the cameras we know today.

I got into Wikipedia again, and I started to read about the history. I wanted to see how the evolution went and how the cameras got better and better. Maybe I’ll get a hint of how it will look in the future. However, this is some things I’ve learnt that I thought you might be interested in as well.

Old cameras, but not the oldest ones

The first camera ever was called the Camera Obscura, which means “dark room” in Latin. This camera used the light from outside to create an image on to a surface, for example a wall or some kind of screen. Its very simple and has an extremely basic function to it. It takes some rays of light that gets into a small hole in a wall or a box. The rays then creates an inverted image that is both backwards and up side down. It’s the absolutely first version of projecting a picture, and it is still found in the cameras today.

The next camera made it possible to save and transport the taken picture. This was not possible with the Camera Obscura, but Nicéphore Niépce made a smaller camera that could save the image. He took a paper covered with silver chloride, which darkened when it was exposed to light. This made the image stay, but after a while the whole picture became black since all the silver chloride was still on the paper and continued to blacken.

Later on, Niépce’s partner continued the evolution. He made the former technique a little better by making the picture more enduring by using other materials. He managed to get the technique a bit further, and Henry Fox Talbot perfected it even more a few years after. This time ht user could adjust the focus with an extra box behind the original box. It was a manual way to take a picture, with taking caps on and off, and waiting a few minutes for the light to imprint the plate.

Next in the evolution came dry plates, which made the photographing even better and easier. After this the tripod was no longer needed, since the cameras was small enough to carry by hand. This was also when detective cameras started being a thing, and cameras was made as hats and other things, because it was so small. The evolution took another large step in the right direction, and soon Kodak would come along and make their famous cameras. The 35 mm film was right behind Kodak and soon the cameras was a lot like the ones we use today.

I wonder what is next when it comes to cameras. We already got action cameras that are small, tough and takes decent pictures. Well, I guess it’s up to future to decide what is next.

How does a camera really work?

We all use cameras, whether it’s with your phone or an a advanced camera. We take for granted that they work and does just the thing we expect them to do – but do we really think about how they work?

I often find myself prancing around to get the best photo, avoiding the over- or under exposure, trying hard to get the perfect picture. Even after many years as a professional photographer, I still get both confused and fascinated over the fantastic wonders of how the cameras work. I also find it frustrating to not really understand – why doesn’t the camera do as I tell it?!

When doing some usual browsing on Wikipedia, I got a bit lost – as I always get. I start reading one article, then click to the next and the next and then I’m suddenly on dancing cat’s or something like that. This time however, I stayed at the article about how cameras work. I found a video which you will find just under this paragraph. Even though I understand most of how a camera works and what the different settings do, it was really informative and interesting to watch.

I started thinking about the whole mechanism and the procedure that goes on in the little box of magic. It turned out I just had a brief idea, and that there was much left to learn. I have still not figured everything out completely, since it’s a lot to grasp. The facts about how the cameras evolved was however a very interesting thing to learn more about. I knew the principle about how the cameras with film worked, since I learnt it during some of the classes I’ve taken in photography. The fact that digital cameras came very late in comparison to other technology was for me very new and it made me realise just how advanced this technique really is.

So, now I’m stuck on YouTube as well, trying to learn more about how cameras do their magic stuff and how on earth it can process light to an virtual image. And, most of all, how it can fit into a small compact camera! It’s certainly a fascinating thing with a lot to learn, if I ever undertand everything about it.