September 3, 2010

Eye Tracking: Uncertainty in Iris Localization

Iris Localization

In a study coming from Cavendish Laboratory, Cambridge, UK, researchers have come up with a Bayesian solution to the problem of locating irises in an image known to contain a face. We’ve written a few articles about new security cameras that can provide iris recognition from afar or for unwilling or non-compliant suspects in a security check, so adding some detail on the processes behind some of these ideas could be helpful to our readers.Locating irises has been a problem for many eye tracking … [Read more...]

Biometric Devices: Jaw Movement to Control a Wheelchair

Jaw bone

HMI, or Human-Machine Interaction is a field that is rapidly advancing as technology becomes more sophisticated. Development teams all over the world are seeking more ways to integrate interaction with machines into our daily lives. Eye tracking is just one of many HMI technologies that have emerged.In a study published at The University of Essex, UK, researchers Lai Wei and Huosheng Hu have presented a new human-machine interaction (HMI) device designed for hands-free control of electric wheelchairs. … [Read more...]

Surprise! Eye Tracking Shows Men Look at Women and Men

Men look at Men too

A post on the blog Think Eye Tracking discusses something they’ve learned about research results: people don’t always tell the truth. They set out to create a test showing how it can happen and, more importantly, how eye tracking can be used as a window into people’s subconscious thought processes.Think Eye Tracking performed an experiment showing two images side by side, one depicting a male in a tight pair of swim trunks and the other a female in a bikini. Study participants donned an … [Read more...]

GazeHawk Makes Eye Tracking More Affordable

webcam

More eye tracking and heat map news from the World Wide Web. Typically, you’ve got just a pair of choices when it comes to site heat mapping. You can buy the necessary equipment, often cost prohibitive, or you can pay a consultant or expert to use their equipment. But every now and again we come across a new do-it-yourself device in the eye tracking and usability world, and the Y Combinator funded GazeHawk project might have a novel approach– webcams.GazeHawk is a less expensive alternative … [Read more...]

More Debate on Effectiveness of Eye Tracking

eye tracking effectiveness

We came across another couple articles focusing on what you’ve always wanted to know about eye tracking. The articles were posted on Another Useful Blog, a German blogger’s site that covers usability issues in interface design. The articles were broken up into two parts, and we’ll cover the first in this post and the 2nd in the next.Basically, the ongoing debate is still being discussed: is eye tracking worth it? Some see it as a silver bullet whereas others consider it a total waste of … [Read more...]

How does Head Stability Improve Eye Tracking Accuracy?

head stability

When conducting research, the accuracy of the data is critical to the validity of the results. In the field of eye tracking research, we are always searching for ways to improve our techniques and make the data we collect as legitimate as possible. A German blogger, Markus Weber, discussed data accuracy of eye tracking in a post on the blog site, Another Useful Blog.Weber writes that one essential part of the eye tracking setup is the camera that captures light reflected by the eye. From there, … [Read more...]

Is Eye Tracking Eye Candy?

Which side are you on? The side that says eye tracking is entirely useful, a tool from which you can gain real insight when it comes to usability studies? Or something more vague, a tool that’s not really a tool at all but a bunch of arbitrary data from which you can’t make any accurate conclusions. Is eye tracking eye candy?When it comes to usability studies, it’s not all positive in the world of eye tracking. For example, eye tracking provides less opportunity for user feedback. In order … [Read more...]

Key Benefits of Eye Tracking

Eye tracking can be a useful tool in measuring and understanding user experience for a website. A post from earlier this year at Cxpartners.co.uk, broke down some key elements and uses for eye tracking.First off, you see what the user sees. It sounds simple, but the ability to see what the user sees can bring another dimension in understanding how a design is performing. Are the elements you were hoping would be seen, being seen? And are they being understood? When are these elements first seen … [Read more...]

How Do You Know Which Eye Tracking Metrics To Use?

Confusion

As we’ve mentioned before, eye tracking comes at a price – often a high price. Cost prohibitive eye tracking solutions for usability have made for a lot of legitimate questions asking if eye tracking is truly worth it. But let’s assume you’ve bought into the idea that eye tracking is useful, and by some means, be it private or public funding, equipment donation, or cheaper alternatives like DIY eye tracking, you have an eye tracker to work with.A recent post touches on the immense amount … [Read more...]

Eye Tracking and Usability: Which Metrics Are Valuable?

Multiple Eye Tracking Metrics

A few articles we’ve recently done at Eye Tracking Update have focused on the cost and effectiveness of eye tracking for usability studies. There’s a lot of debate on the subject of course, but assuming you’ve decided that eye tracking works for you, you may be somewhere along the lines of choosing which metrics to use. Or maybe you’re not choosing, but thinking you need to see all of them in order to gain insight into how a user uses a website.Well, as we’ve written in some of our … [Read more...]