Guangdong Oppo Mobile Telecommunications Corp., Ltd.

University of Toronto

The Chinese University of Hong Kong

Lu Wang

Ming Li

Geoffrey Alan Ozin

Qi Liu

Xiaohui Wang

Zhigang Zou

Zeshu Zhang

Xue Ding

The present disclosure provides a point cloud encoding method and system, a point cloud decoding method and system, a point cloud encoder, and a point cloud decoder. A prediction mode of attribute information of a current point is determined through geometric information of a point in a point cloud, so that a determination process of the prediction mode is decoupled from a reconstruction process of the attribute information of the point in the point cloud, the two processes can be performed in parallel, and thus the efficiency of encoding and decoding is improved.

Point cloud encoding method and system, point cloud decoding method and system, point cloud encoder, and point cloud decoder

The present disclosure provides a method of preparing unsaturated hydrocarbons by black body photocatalytic (thermal radiative catalytic) conversion of saturated hydrocarbons. In this method, a saturated hydrocarbon reaction gas is introduced into a reaction furnace, and the saturated hydrocarbon is catalyzed to convert under heating and illumination conditions to prepare the unsaturated hydrocarbons. The photocatalysis is combined to the conventional thermal catalysis to improve the catalytic performance, accelerate the reaction speed, increase the conversion rate, and/or improve the selectivity of the catalytic reaction.

Method of preparing unsaturated hydrocarbons by black body photocatalytic conversion of saturated hydrocarbon

Growing community of inventors

Guangdong, China

Lu Wang