31 results about "Shape transformation" patented technology

The invention relates to a method for accurate segmentation and registration of a multispectral tongue image, and belongs to the technical field of image processing. Firstly, a multispectral camera is used for shooting tongue body image data sets of a subject, a trained U-Net model is used for accurately segmenting each tongue body image in each group of data sets, and tongue body areas are extracted. Secondly, performing registration operation on the same group of tongue body images according to the segmented contour feature points, and then processing non-rigid deformation of fine textures in the tongue body by combining a dense optical flow method and a multi-stage registration strategy; and finally, enhancing the number and distribution of the control points by introducing free shape transformation (FFD) and an improved thin plate spline (TPS) algorithm. Experimental results show that color information of each image is reserved, the registration effect of tongue texture details is remarkably improved, and a reliable data basis is provided for subsequent tongue diagnosis analysis and multi-spectral information fusion.

The invention relates to the technical field of floor pattern simulation, in particular to a millstone floor pattern simulation generation method, which comprises the following steps: mixing a cementing material, a pigment and water to prepare slurry, and making a background image by using the color of the slurry; acquiring stone images with different attributes, preprocessing the stone images, and making mask images; performing shape transformation, random rotation and feathering on the stone image; selecting different stone images from a stone image library according to the design requirements of a preset millstone floor pattern formula; performing overlap detection and adjustment on the stones to obtain a stone overlap-removed image; and embedding the stone overlap-removed image into the background image, and carrying out Poisson fusion on the two images. The problems that in the design and customization process of commercial terraces and urban underground parking areas, ideal terrace flower colors are achieved through repeated experiments, efficiency is low, and cost is high are solved.