Unified solution for WIA and TWAIN in the web interface

I need to add web capabilities so that users can scan images with a local TWAIN or WIA compliant scanner or digital camera and then upload those images to a server. (Scanning should be integrated into the web interface, not just scan it locally using any tools and then upload the resulting file to the web interface).

I found the Microsoft Silverlight WIA Implementation and Asprise JTwain applet , each of which does roughly what I'm looking for, but only handle WIA or TWAIN and do it using different technologies.

Does anyone know a library / product / etc. what will provide the same functionality with TWAIN and WIA access? Ideally, something cross browser independent, but if it comes to it, it could potentially be limited to IE. On the other hand, I would be open to separate solutions using the same technology (for example, a WIA Java applet or a silverlight TWAIN application or two applications in any language that does both separately).

thanks