Abstract: A system for adding copyright protection to implicit 3D models is provided. The system includes a first MLP module, a second MLP module, a color feature encoder, a message feature encoder, and a feature fusion module. The first MLP module outputs a geometry parameter according to a 3D coordinate parameter obtained from a 3D model source. The second MLP module outputs a base-colors parameter according to a viewing-directions parameter obtained from the 3D model source and outcomes of the first MLP module. The color feature encoder concatenates the geometry parameter, the viewing-directions parameter, and the base-colors parameter to obtain a spatial descriptor and transforms the spatial descriptor to a high-dimensional color feature field. The message feature encoder maps messages to higher dimensions so as to obtain a message feature field. The feature fusion module generates a watermarked color representation and embed the watermarked color representation into the 3D model source.

Abstract: One or more embodiments of the present specification provide blockchain-based data processing computer-implemented methods, non-transitory, computer-readable media, and computer-implemented systems. In an implementation, a computer-implemented method includes obtaining, by a first node device of a blockchain and from a distributed database of the blockchain, a target transaction that comprises state information of a target user. A data type of the state information and data content that corresponds to the data type of the state information is identified. A first graphical processing is performed on the data content that corresponds to the data type of the state information to obtain a state graphic that corresponds to the target user, where the first graphical processing is performed based on first predetermined data graphical processing logic that corresponds to the data type of the state information.

Abstract: One or more embodiments of the present specification provide blockchain-based data processing computer-implemented methods, non-transitory, computer-readable media, and computer-implemented systems. In an implementation, a computer-implemented method includes obtaining, by a first node device of a blockchain and from a distributed database of the blockchain, a target transaction that comprises state information of a target user. A data type of the state information and data content that corresponds to the data type of the state information is identified. A first graphical processing is performed on the data content that corresponds to the data type of the state information to obtain a state graphic that corresponds to the target user, where the first graphical processing is performed based on first predetermined data graphical processing logic that corresponds to the data type of the state information.