Microsoft Seeks Patent For "Search By Sketch"
theodp writes "So, how does one search for images that aren't tagged with keywords? Google does offer its sometimes-spotty search by image, but what if you don't have an image handy that looks like what you're searching for? Microsoft, reports GeekWire, offers a solution that's 'a little like playing Pictionary with a search engine — drawing a sketch and seeing if the algorithm can return pictures that match it.' That's the concept behind Microsoft Research's patent-pending 'MindFinder' project, which has already been incorporated into a Windows Phone app called Sketch Match. A patent application made public Thursday notes that touch computing makes sketching easier than ever, making one wonder if we'll be 'giving Bing the finger' with Windows 8!"
Already done here for LaTex symbols: http://detexify.kirelabs.org/classify.html
Please please please don't approve the patent. I haven't read it, but according to the summary there's nothing new about it.
Sounds like you're talking about Google Goggles.
Rtriever has been doing exactly the same thing since 2006. http://labs.systemone.at/retrievr/
Patent is invalid if there is prior art. Well, imgSeek has had that function since at least 2008 (can't find changelog for desktop version - it might have been there already in 2006).