Abstract: An image description information generation method includes obtaining a to-be-processed target image, and inputting the target image into a target-image description information generation network. The target-image description information generation network is a generation network that is obtained by performing adversarial training using a plurality of sample images and that is configured to generate image description information, the adversarial training is training an initialized image description information generation network and an initialized discriminative network alternately, and the discriminative network is configured to discriminate an output result of the image description information generation network. The method also includes according to the output result of the target-image description information generation network, generating target-image description information used for describing the target image.

Abstract: An image retrieval method is provided. The image retrieval method includes: performing feature extraction on an image according to a deep learning-based feature extraction manner to obtain a first feature; determining, based on the first feature, at least one candidate image; performing feature extraction on the image and each of the at least one candidate image according to a non-deep learning-based extraction manner to obtain a second feature; sequentially performing key point matching processing on the image with each of the at least one candidate image based on the extracted second feature; determining a first image, from among the at least one candidate image, as an image retrieval result, based on a quantity of matched key points between the first image and the image being greater than a quantity threshold; and transmitting the image retrieval result.

Abstract: An image description information generation method includes obtaining a to-be-processed target image, and inputting the target image into a target-image description information generation network. The target-image description information generation network is a generation network that is obtained by performing adversarial training using a plurality of sample images and that is configured to generate image description information, the adversarial training is training an initialized image description information generation network and an initialized discriminative network alternately, and the discriminative network is configured to discriminate an output result of the image description information generation network. The method also includes according to the output result of the target-image description information generation network, generating target-image description information used for describing the target image.