<![CDATA[
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>
<!-- --><style type="text/css">@import url(https://www.blogger.com/static/v1/v-css/navbar/3334278262-classic.css);
div.b-mobile {display:none;}
</style>
</head><body><script type="text/javascript">
function setAttributeOnload(object, attribute, val) {
if(window.addEventListener) {
window.addEventListener('load',
function(){ object[attribute] = val; }, false);
} else {
window.attachEvent('onload', function(){ object[attribute] = val; });
}
}
</script>
<div id="navbar-iframe-container"></div>
<script type="text/javascript" src="https://apis.google.com/js/platform.js"></script>
<script type="text/javascript">
gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() {
if (gapi.iframes && gapi.iframes.getContext) {
gapi.iframes.getContext().openChild({
url: 'https://www.blogger.com/navbar/6652770324093717803?origin\x3dhttp://xnewgenerationx.blogspot.com',
where: document.getElementById("navbar-iframe-container"),
id: "navbar-iframe"
});
}
});
</script>
]]>
Predict the future.
Friday, July 27, 2007
source of picture: http://web.archive.org/web/20040925070840/http://artificialvision.com/
There are technologies being developed to help the blind see. One way is through the brain implant. A brain implant or cortical implant provides visual input from a camera directly to the brain via electrodes in contact with the visual cortex at the backside of the head. A computer is used to process the sensory streams, as is typical for a brain-computer interface (BCI). One of the pioneers of this is William Dobelle, and they call it the Dobelle implant. He died in October 2004, but Stony Brook University and Avery Biomedical Devices Inc. will reportedly continue development of the Dobelle brain implant. He had two volunteers Jens, and Jerry. Jens implant allowed him to see rough images but the implants started to fail so they had to remove it.
Image resolution from the brain implant:
Reportedly had 68 electrodes, technically offering up to 68 pixels, but resulting in only some 20 effective pixels (phosphenes) at irregular positions and in a narrow field of view, like in tunnel vision. For comparison: an ordered 8 by 8 pixel matrix would have 64 pixels. Resolution of the implants reported in 2002 for Jens and others was 144 pixels (72 pixels for each of the two brain hemispheres). In 2003 the reported resolution was 484 electrodes, 242 electrodes for each hemisphere, at best equivalent to a 15 by 16 pixel matrix.
Cost indication: $125,000 (excluding training and adaptation).
I hope that this technology and others will be fully developed in the future to help the blind see. It takes time and it costs a lot, but at least this technology will help them recover even just some part of there sight.
reference: http://www.artificialvision.com/etumble.htm
-Parmanand, R, B.
-------------------The technology is getting more advanced..--------------- ; {10:00 PM}
_________________________________________________________
source of picture: http://web.archive.org/web/20040925070840/http://artificialvision.com/
