Feature extraction method and apparatus for three-dimensional scene, device, and storage medium

A computer device, comprising a memory, and a processor, the memory having a computer program stored therein, the computer program, when executed by the processor, causing the computer device to implement a feature extraction method for a three-dimensional scene including:

• shooting a cone-shaped group of viewing-frustum rays from a target character object for a hit object in a three-dimensional scene picture;
• determining object attribute information of the hit object based on an interaction between the viewing-frustum rays and the hit object;
• performing vector conversion on the object attribute information of the hit object, to obtain a ray-feature vector;
• collecting, based on different granularities by using a location of the target character object as a collection center, a height-value matrix corresponding to each granularity;
• performing feature dimension reduction on the height-value matrices respectively corresponding to the granularities, to obtain a height-map feature vector;
• and
• integrating the ray-feature vector and the height-map feature vector into a three-dimensional scene feature corresponding to the three-dimensional scene picture.

A non-transitory computer-readable storage medium, having a computer program stored therein, the computer program, when executed by a processor of a computer device, causing the computer device to implement a feature extraction method for a three-dimensional scene including:

• shooting a cone-shaped group of viewing-frustum rays from a target character object for a hit object in a three-dimensional scene picture;
• determining object attribute information of the hit object based on an interaction between the viewing-frustum rays and the hit object;
• performing vector conversion on the object attribute information of the hit object, to obtain a ray-feature vector;
• collecting, based on different granularities by using a location of the target character object as a collection center, a height-value matrix corresponding to each granularity;
• performing feature dimension reduction on the height-value matrices respectively corresponding to the granularities, to obtain a height-map feature vector;
• and
• integrating the ray-feature vector and the height-map feature vector into a three-dimensional scene feature corresponding to the three-dimensional scene picture.