Location History:
- Beijing, CN (2018)
- Hangzhou, CN (2019)
Company Filing History:
Years Active: 2018-2019
Title: Cao Shen - Innovator in Video Coding Technologies
Introduction
Cao Shen is a prominent inventor based in Hangzhou, China. He has made significant contributions to the field of video coding technologies, holding a total of 2 patents. His work focuses on improving the efficiency and effectiveness of video prediction methods.
Latest Patents
Cao Shen's latest patents include a "Rapid selection method for video intra prediction mode and apparatus thereof." This application discloses methods and apparatuses for intra prediction mode selection. One method involves acquiring a gradient amplitude and a gradient angle of each element in a prediction block. It analyzes statistics on the gradient angles and generates a gradient angle histogram of the prediction block. If the texture smoothness of the prediction block exceeds a first pre-determined threshold value, it determines that the prediction block is a first-type prediction block. The prediction mode of this block includes a direct current prediction mode and a planar prediction mode. Conversely, if the texture smoothness is below a second pre-determined threshold value, it identifies the block as a second-type prediction block, setting an angular prediction mode based on the maximum peak value in the gradient angle histogram.
Another notable patent is the "Method, apparatus and coder for selecting optimal reference frame in HEVC coding." This invention includes obtaining optimal reference frames of prediction units spatially adjacent to a current prediction unit. It determines the optimal reference frame based on the correlation between these adjacent prediction units in the same layer depth. This approach eliminates the need for ergodic rate distortion cost calculations for certain prediction units, thereby enhancing coding efficiency.
Career Highlights
Cao Shen is currently employed at Alibaba Group Holding Limited, where he continues to innovate in the field of video coding. His work has been instrumental in advancing the technology used in video compression and transmission.
Collaborations
Cao Shen has collaborated with notable coworkers, including Haohui Xu and Chang Zhou. Their combined expertise has contributed to the development of cutting-edge technologies in video coding.
Conclusion
Cao Shen is a key figure in the realm of video coding innovations, with a focus on enhancing prediction methods. His contributions through patents reflect his commitment to advancing technology in this field.