The closest thing I have seen to what you are describing is Amazon's new iPhone app. Users take a picture of any item, then the pictures are routed to Mechanic

The closest thing I have seen to what you are describing is Amazon's new iPhone app. Users take a picture of any item, then the pictures are routed to Mechanical Turk where a real person tries to match the product in the picture with the same or similar product in Amazon's inventory. It works for Amazon because they have a large, low cost workforce in Mechanical Turk workers and a massive inventory. A service like you are describing would likely have to be people powered in the same way as Amazon's iPhone App. I could imagine the revenue model working as either a revenue share on sold good the way Amazon does or as a marketplace for furniture shoppers and interior decorators/designers (i.e. you post some photos and a budget and decorators/designers bid to get the business of helping you find the right furniture, etc). Not sure how lucrative either of these models would be.