Company Filing History:
Years Active: 2011-2014
Title: Innovations by Richard Yuk Ming Li
Introduction
Richard Yuk Ming Li is a notable inventor based in Hong Kong, CN. He has made significant contributions to the field of data hiding and watermarking technologies. With a total of 2 patents, his work focuses on enhancing the efficiency and effectiveness of digital watermarking techniques.
Latest Patents
One of his latest patents is titled "General data hiding framework using parity for minimal switching." This framework aims to reduce the number of locations modified when hiding data, such as digital watermarks, in binary data. It complements existing data hiding techniques by creating a data structure with values associated with potential embedding locations. A parity calculation is performed on these values, which helps determine the locations for modifications, ultimately reducing the total number of changes needed to represent the hidden data.
Another significant patent by Richard is "Embedding watermark into halftone image with low distortion using parity values for overlapping groups of candidate sites." This patent presents systems and methodologies for low-distortion image watermarking. By leveraging parity relationships between multiple pixels or regions of an image, the amount of toggling required to embed a watermark is minimized. This innovation increases watermark efficiency and reduces visual artifacts in the watermarked image. Various algorithms, including the Block-Overlapping Parity Check (BOPC) algorithm, the Champagne Pyramid Parity Check (CPPC) algorithm, and the Tree-Based Parity Check (TBPC) algorithm, are described in this patent.
Career Highlights
Richard Yuk Ming Li is currently associated with Wong Technologies L.L.C., where he continues to develop innovative solutions in the field of digital watermarking and data hiding. His expertise and contributions have positioned him as a key figure in this technological domain.
Collaborations
Richard collaborates with Oscar Chi Lim Au, working together to advance their research and innovations in watermarking technologies.
Conclusion
Richard Yuk Ming Li's work in data hiding and watermarking has led to significant advancements in the field. His innovative patents demonstrate a commitment to improving digital data security and efficiency.