Sony Develops TVs That Zoom in for True Close-ups

prakslash writes "Sony has unveiled version 2 of its 'Digital Reality Creation' technology that allows viewers to pan around a TV image and then zoom in. Unlike the current TVs that simply scale the image, Sony's technology does 'true' zooming by digitally enhancing the signal to communicate gloss, depth and texture.

Comments

Re:Good existing zoom implementations

[grammar fascist]

I figured I'd post my own results here.

It's true that digital zoom can't replace information that was lost due to scaling and sampling. It's possible to get something reasonably close, though. There are a bunch of algorithms available for photographs, but their biggest problem seems to be execution time. It's not pretty.

Here's mine. Please be kind to the server...

I've gotten better-looking results since I put that together but I haven't had time to put them up yet. The slowest part of my algorithm requires solving a nonlinear system of nine equations for the least sum squared error per pixel. That's orders of magnitude slower than bicubic interpolation (which is standard).

I don't know which interpolation algorithms are used for so-called digital zoom. Is there someone in the industry here that knows?