Patent ID: 11941529
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. The apparatus according to claim 6, wherein the mouth detection model is obtained by a training process comprising:
obtaining an initial class detection model, wherein the initial class detection model comprises an initial mouth detection model and an initial classification model connected with the initial mouth detection model, wherein the initial classification model takes an output of the initial mouth detection model as an input, and class information representing a class to which a content displayed by the pixel point in the mouth image belongs as an output;
obtaining a training sample set, wherein a training sample comprises a mouth image and class information used for representing a class to which a content displayed by the pixel point in the mouth image belongs;
carrying out training using a machine learning method with the mouth image in the training sample in the training sample set as an input of the initial class detection model and the class information corresponding to the input mouth image as an expected output of the initial class detection model to obtain a trained initial class detection model; and
determining a trained initial mouth detection model comprised in the trained initial class detection model as the mouth detection model.