Image natural language description generation method and device with cross-linguistic learning ability

The invention provides an image natural language description generation method and device with cross-linguistic learning ability. The method comprises the steps that English description sentences are translated into target language description sentences through a machine; part of the target language description sentences are selected randomly to form a training sample set; a smooth sample set and a non-smooth sample set are used for training a sentence smooth degree model; the target language description sentences in a candidate data set are subjected to smooth degree evaluation through the sentence smooth degree model, and according to the smooth degree probability of each target language description sentence, a strategy for training an image description sentence generation model is set; according to the strategy, the image description sentence generation model is trained, and the trained image description sentence generation model is obtained. According to the image natural language description generation m