US Patent 7953295 Enhancing text in images

Methods, systems, and apparatus including computer program products for enhancing text in images are provided. In one implementation, a computer-implemented method is provided. The method includes receiving a plurality of images each image including a corresponding version of an identified candidate text region and aligning each candidate text region from the plurality of images to a high resolution grid. The method also includes compositing the aligned candidate text regions to create a single superresolution image and performing character recognition on the superresolution image to identify text.