MODEL CONSTRUCTION METHOD AND APPARATUS, OBJECT RECOGNITION METHOD AND APPARATUS, DEVICE, MEDIUM, AND PRODUCT

Embodiments of the present disclosure provide a model construction method and apparatus, an object recognition method and apparatus, a device, a medium, and a product. The method may comprise: acquiring a limb recognition model, the limb recognition model comprising a limb feature extraction network having known parameters, and the limb recognition model being used for recognizing a limb; inputting a training image into the limb feature extraction network to obtain an image limb feature; on the basis of the image limb feature, determining an object recognition result of the training image by means of an object recognition network, and updating the object recognition network on the basis of the object recognition result, an object recognized by the object recognition network being a localized portion of the limb; and constructing a target recognition model on the basis of the limb feature extraction network and the updated object recognition network, the target recognition model being used for performing recog