Location History:
- San Jose, CA (US) (2006)
- Cupertino, CA (US) (2005 - 2010)
- Yuseong-gu, KR (2009 - 2012)
Company Filing History:
Years Active: 2005-2012
Title: Innovations of Changick Kim in Video Encoding Technologies
Introduction
Changick Kim is a prominent inventor based in Cupertino, California, recognized for his significant contributions to video encoding technologies. With a portfolio of 15 patents, Kim has made remarkable advancements that enhance the efficiency and quality of video compression techniques.
Latest Patents
Among his latest patents are two noteworthy inventions: "Macroblock Homogeneity Analysis and Inter Mode Prediction" and "Transform Domain Based Distortion Cost Estimation." The first patent outlines a method for selecting an inter mode for encoding video macroblocks. This process includes an initial analysis of macroblock homogeneity, which streamlines the number of inter modes used in motion estimation and rate distortion calculation. Only the selected inter mode undergoes sub-pixel motion estimation, which may be bypassed in cases of low distortion at the integer pixel level.
His second patent, "Transform Domain Based Distortion Cost Estimation," describes a technique for calculating rate distortion costs associated with encoding macroblocks. This invention facilitates the estimation of distortion values within the transform domain, eliminating the need for inverse transformation and inverse motion functions. By identifying the difference between a motion-compensated prediction residual and its corresponding reconstructed signal in the transform domain, Kim enables accurate distortion level estimates for various encoding modes.
Career Highlights
Changick Kim's career is marked by his innovative approach to video encoding at Seiko Epson Corporation. His expertise and creativity have been instrumental in developing cutting-edge technologies that address the growing demands for high-quality video streaming and compression. Through his work, Kim has played a key role in enhancing the capabilities of video processing systems, contributing to the advancement of the digital media landscape.
Collaborations
Kim has collaborated with notable colleagues such as Vasudev Bhaskaran and William Chen. These partnerships have fostered a dynamic environment for innovation, allowing for the exchange of ideas and the development of groundbreaking technologies in the field of video encoding.
Conclusion
In conclusion, Changick Kim's innovative work in video encoding technologies has positioned him as a leading inventor in the industry. With his substantial patent portfolio and collaborative efforts, he continues to drive advancements that enhance video compression techniques, making significant impacts on digital media and communication. His contributions are expected to shape the future of how video content is created, transmitted, and experienced.