Patent ID: 7596270
Filing Date: 2009-09-29
Classification: G06K

Abstract:
1. An Asian character document shuffling method for randomly relocating text character images of a scanned-in Asian character document to produce a shuffled image, wherein the meaning of text in the shuffled image is not understandable though individual characters contained in the text in the shuffled image are recognizable, the method comprising: (a) dividing an Asian character document image into a text image portion and a non-text image portion; (b) structuring the text image portion into a multiple resolution-level pyramid having multiple resolution levels that are progressively lower than the resolution level of the text image portion, the text image portion being presented in progressively lower resolution in each of the multiple resolution levels, step (b) further comprising sub-steps of: (c) extracting shuffleable character images by analyzing the multiple-resolution-level pyramid; and (d) shuffling some or all of the extracted shuffleable character images to create a shuffled image, step (d) further comprising sub-steps of: