Wenhan Qiao

Title: Innovations of Wenhan Qiao in Transform Methods

Introduction

Wenhan Qiao is a notable inventor based in Dongguan, China. He has made significant contributions to the field of technology, particularly in the development of advanced transform methods. With a total of four patents to his name, Qiao's work has had a substantial impact on the industry.

Latest Patents

Wenhan Qiao's latest patents include a transform method, encoder, decoder, and storage medium. One of his innovative transform methods involves determining a prediction mode parameter of a current block. This method also includes determining a MIP parameter when the prediction mode indicates that MIP is used for the current block to ascertain an intra prediction value. Furthermore, it calculates a residual value between the current block and the intra prediction value. The process continues with performing a first transform on the residual value to obtain a first coefficient matrix. Additionally, it determines a scanning order of LFNST coefficients used for the current block based on the MIP parameter. The method constructs an input coefficient matrix of the LFNST based on the first coefficient matrix and performs LFNST processing to obtain a transform coefficient matrix of the current block.

Another significant patent involves a transform method and a decoder. In this case, the encoder determines a prediction mode parameter of a current block and a cross-component linear model (CCLM) parameter when the prediction mode indicates that CCLM prediction is used. This method also calculates a residual value between the current block and the intra prediction value, determines a low-frequency non-separable transform (LFNST) transform kernel, and signals the LFNST index into a bitstream of a video when LFNST is used for the current block.

Career Highlights

Wenhan Qiao is currently employed at Guangdong Oppo Mobile Telecommunications Corp., Ltd. His work at this company has allowed him to explore and develop innovative technologies that enhance video processing and encoding.

Collaborations

Throughout his career, Qiao has collaborated with talented individuals such as Junyan Huo and Xinwei Li. These collaborations have contributed to the advancement of his projects and the successful development of his patents.

Conclusion

Wenhan Qiao's contributions to the field of technology through his innovative patents and collaborations highlight his role as a significant inventor. His work continues to influence advancements in transform methods and video processing technologies.