Image retrieval method and device and electronic equipment

The embodiment of the invention provides an image retrieval method and device and electronic equipment, and belongs to the technical field of data processing, and the method comprises the steps: carrying out the feature extraction of a to-be-retrieved image through employing a first layer group of a first network model, and obtaining a first feature image; performing feature calculation on the target image through a second network model to obtain a feature matrix related to the target image; and based on the feature matrix and the first feature image, performing a retrieval operation by using a second layer group of the first network model, with the retrieval operation being used for determining whether the to-be-retrieved image contains the target image. Through the scheme of the invention, the retrieval of the target image can be realized without marking the training data, and the image recognition efficiency is improved. 本公开实施例中提供了一种图像检索方法、装置及电子设备，属于数据处理技术领域，该方法包括：利用第一网络模型的第一层组对待检索图像进行特征提取，得到第一特征图像；通过第二网络模