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Medical Forum / General / Vision / October 2007eye-tracking equipment
Is it possible to track eye movements using ordinary PC camera and appropriate software or is it necessary to use special hardware ? Results don't have to be very precise, I need them just for school researches. natalia.909@gmail.com wrote in news:1193052213.946242.52280 @i38g2000prf.googlegroups.com: > Is it possible to track eye movements using ordinary PC camera and > appropriate software or is it necessary to use special hardware ? > Results don't have to be very precise, I need them just for school > researches. Depends on what you are trying to do. You at least need image processing software that can track the center of the pupil. If you need to do this in real time, it would be difficult without specialized hardware.  SignatureScott Reverse name to reply > Depends on what you are trying to do. You at least need image processing > software that can track the center of the pupil. If you need to do this in [quoted text clipped - 3 lines] > Scott > Reverse name to reply Well, I don't need to track eye movement in real time but I have to measure the time while the participant of the experiment looks on the image, that is demonstrated to him. Can I do this without specialized hardware? I also don't need the exactly trail of pupil's move, but it would be great if I could find out which parts of the shown image have the biggest gaze frequency. Is there any software that requires only PC camera and can do things that I've wrote about? >> Depends on what you are trying to do. You at least need image >> processing software that can track the center of the pupil. If you [quoted text clipped - 12 lines] > the biggest gaze frequency. Is there any software that requires only > PC camera and can do things that I've wrote about? If you don't need to do this in real time, you shouldn't need specialized hardware. You will, however, need some pretty good image processing software. Unless you're a really good programmer, or have access to a good image processing library, I'd wager that the commercial packages are the way to go, especially if you need both horizontal and vertical eye movements. If you could get away with only horizontal, there are other options which would be much easier. SignatureScott Reverse name to reply apple macs are good 4 this sort of stuff, trust me stay away from windows > apple macs are good 4 this sort of stuff, trust me > stay away from windows Yeah, never mind that I've been professionally measuring eye movements on windows computers for 15 years. SignatureScott Reverse name to reply you can use windows, but i think macs are faster and for simple use macs are overall better for short term projects like this. what is your job scott? r u an OD? my school is a media arts college and the computers in our school that have windows os absolutely suck. the macs are absolutely amazing though. i can say it from my own experiences.we have to measure movements and stuff too sometimes. > If you could get away with only horizontal, there are other > options which would be much easier. Let's presume that I need just horizontal eye movements. What other options exactly do you mean? On 22 Pa , 17:33, Zetsu <absolutelyinvinci...@hotmail.com> wrote: > apple macs are good 4 this sort of stuff, trust me > stay away from windows Unfortunately I have access just to windows, but if I could get apple mac, do you know any particular software that would be useful in this case? natalia.909@gmail.com wrote in news:1193081741.597177.74070 @i13g2000prf.googlegroups.com: > Let's presume that I need just horizontal eye movements. What other > options exactly do you mean? Electrooculography (EOG), or infrared oculography. With either system, you'd need a way to acquire analog electrical data. I'd imagine you could put together a good EOG system for less than $100. Something to sample your data might run you $400 or so. SignatureScott Reverse name to reply i think a good software is 'final cut studio 2' although you might need to interweave use of one application with another if you want to do things nicely. this isnt the best place to ask about these things, go on to the image processing forums they'll tell you how to do it all >I need them just for school researches r u a sixth former? which subject do you need this research for? > > If you could get away with only horizontal, there are other > > options which would be much easier. [quoted text clipped - 9 lines] > mac, do you know any particular software that would be useful in this > case? It barely has 15 years experience at living, much less experience with hardware and software. It is still a child. |
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