Inference device, inference method, and non-transitory computer-readable medium

Abstract

An image signal indicating a target image is acquired when a domain of the target image is different from that of a training image or a recognition task of the target image is different from a pre-learned task. The image signal is provided to a trained learning model. An inference time feature amount obtained by combining feature amounts of the detection target after the feature amounts are blurred is acquired from the learning model. A three-dimensional position of the detection target is estimated on the basis of a representative feature amount being a registered feature amount of the detection target appearing in an image for conversion whose domain and recognition task of the image are the same as those of the target image, and the inference time feature amount. A temporal positional change of the detection target in the target image is analyzed on the basis of the estimated position.