New pending patent applications are published by the USPTO on Thursdays. Both of today's Spotlight Applications concern aspects of digital watermarking. Assigned to Digimarc, the first application discloses methods involving maps, imagery, video and steganography. Assigned to Tata (IN), the second application discloses techniques for digital watermarking.
20160035059, "Methods involving maps, imagery, video and steganography," assigned to Digimarc.
Abstract
The disclosure describes methods and apparatus of providing steganographic indicia or digital watermarking in image or video data. One implementation provides a method of embedding a digital watermark in image data captured by an imager, with watermark embedding occurring on-chip with the imager. Another implementation provides a method of managing images. Each of the images comprises plural-bit data steganographically embedded therein in the form of a digital watermark, with the plural-bit data corresponding to a geo-location. Yet another implementation provides a method of identifying locations on a map, with the map being for display via a computer display. Still another implementation provides a method of introducing a watermark message to a watermark embedder located on-chip with an image array. Other implementations and embodiments are provided as well.20160035058, "Digital watermarking," assigned to Tata Consultancy Services Limited (IN)
Abstract
System(s) and method(s) for embedding and extracting a watermark from a digital media are described. The method may include embedding a set of watermark bits in a N*N block of the digital media based on a local binary pattern (LBP) synthesis process. The LBP synthesis process comprises changing a value of a neighbor of a central pixel of the N*N block to make the value of the neighbor greater than a value of the central pixel when a watermark bit corresponding to the neighbor is `1` and changing the value of the neighbor of the central pixel to make the value of the neighbor lesser than the value of the central pixel when the watermark bit corresponding to the neighbor is `0`.