Embedding and decoding three-dimensional watermarks into stereoscopic images

摘要

Disclosed inventions relates to methods and systems for encoding at least one watermark into a stereoscopic conjugate pair of images. An example method comprises the step of encoding the at least one watermark by shifting selected pixels of said pair of images in one or more directions. The one or more directions include a horizontal direction. In the disclosed embodiments, ancillary information is not required to support decoding of encoded watermarks in addition to the transmitted left and right images.

主权项

1. A method for encoding at least one watermark using a stereoscopic conjugate (3D) pair of images by shifting one or more pixels in at least a vertical direction, the method comprising:
generating a depth map from the 3D pair of images; modifying said depth map to encode the at least one watermark into said depth map; and generating a modified 3D pair of images based on the modified depth map, the depth map being modified such that at least one image of the modified pair of 3D images has one or more pixels shifted in at least a vertical direction relative to the corresponding image in the 3D pair of images.