3 results about "WebP" patented technology

The invention discloses a web end picture compression processing and uploading method based on multi-dimensional image features, and the method comprises the steps: recognizing a real format through file header verification, and carrying out the precise preprocessing; extracting multi-dimensional image features including size information, content complexity, brightness distribution and metadata; a lightweight CNN model is integrated for semantic recognition, and images are divided into portraits, documents, sceneries and the like; a regional compression mechanism is activated based on semantic types, and higher weights are distributed to key regions such as human faces and characters; the multi-dimensional features and a user set target are integrated through a weighted regression model, an optimal compression parameter is calculated, and the precision is ensured by adopting two-stage iterative optimization; selecting optimal output formats such as WebP, AVIF and the like according to the equipment capability, the network state and the content characteristics; hash verification is implemented to ensure transmission integrity; and finally, continuously optimizing the compression strategy through front-end incremental learning.

The invention provides an animation extension method and device, an extended animation playing method and device, equipment and a medium, and relates to the technical field of animation processing. The animation extension method comprises the steps that an original animation file is analyzed, an original animation sequence frame and animation configuration in a protobuf format are obtained, the format of the original animation file is any one of APNG, WebP and GIF, and the animation configuration comprises the size and frame rate information of the original animation; a target mask sequence frame of the target mask resource is imported, effective information of the mask sequence frame is extracted, mask configuration in the protobuf format is generated, and the effective information comprises the position, the size and the scaling rate of a non-transparent area in the mask sequence frame; the animation configuration and the mask configuration are combined into the unified protobuf configuration file, the resource header of the original animation file is written, the extended animation file is exported, lightweight extension of the original animation format is achieved, mask resources can be mounted, the animation resource reuse rate is increased, and the development and management cost is reduced.

The application discloses a kind of three-dimensional model adaptive lightweight processing method and system, the three-dimensional model adaptive lightweight processing method uses C++ and C# mixed development mode, combined with.NET Core cross-platform framework, is divided into business layer and data processing layer: business layer is developed using C#, responsible for service management, MQTT communication and three-party system docking;Data processing layer is developed using C++, focuses on file analysis, mesh partitioning and face reduction optimization.System supports NWD, FBX, IFC, RVM, VUE and the analysis and conversion of multiple industrial three-dimensional model formats, reduce vertex redundancy through triangular mesh index technology, combined with WebP lossless compression material map, realize model volume compression rate is more than 50%.Asynchronous message communication is realized using MQTT protocol, supports JSON instruction control conversion process, can receive conversion request including model UUID, file type, scaling ratio and LOD level and other parameters, while guaranteeing the integrity of model engineering semantic information, significantly reduce model storage and transmission cost.