Target detection method and device based on three-dimensional image and electronic equipment

The invention relates to a target detection method and device based on a three-dimensional image and electronic equipment, and the method comprises the steps: obtaining a to-be-detected three-dimensional image, and carrying out target detection of the to-be-detected three-dimensional image through a trained network model, acquiring the trained network model by training a preset network model through a positive sample feature point and a negative sample feature point, and determining the positive sample feature point and the negative sample feature point by the offset from each feature point in each feature map corresponding to the three-dimensional sample image to the center point of the sample image tag; wherein the offset comprises a depth offset, a width offset and a height offset. The model for performing target detection on the small target can obtain the positive sample feature points to perform model training, so that the accuracy of performing target detection on the small target by the trained model