Three-dimensional figure model construction method and device and storage medium

Abstract

The invention provides a three-dimensional figure model construction method and construction device, and the method comprises the steps: separating a figure image from a target image, and generating afigure contour map corresponding to the figure image; performing two-dimensional attitude estimation on the figure image to obtain attitude features of the figure image; generating a preset two-dimensional grid vertex projection drawing based on the preset three-dimensional figure model and the attitude features; obtaining a reference contour map of a preset two-dimensional grid vertex projectionmap, and calculating a mapping relationship between pixel points of the figure contour map and pixel points of the reference contour map; based on a preset three-dimensional figure model, carrying out back projection calculation on the pixel points of the figure contour map to obtain three-dimensional position coordinates of the pixel points of the figure contour map; calculating three-dimensional position coordinates of other pixel points of the figure image by taking the pixel points of the figure contour map as control points based on a topological relation of grid vertexes in a preset two-dimensional grid vertex projection map; and constructing a three-dimensional figure model based on the three-dimensional position coordinates of all the pixel points of the figure image.

Description

technical field [0001] The invention relates to the field of image data processing, in particular to a method, device and storage medium for constructing a three-dimensional character model. Background technique [0002] With the development of science and technology, people have higher and higher requirements for various image resources. In order to create an immersive feeling for users, more and more image resources use 3D display technology, so 3D display technology has gained Unprecedented development and application. [0003] Existing 3D display technologies generally create 3D character models based on 2D character pictures, usually need to take multiple static photos of 2D characters from different angles, and then synthesize multiple still photos of 2D characters to generate accurate and perfect 3D character models. [0004] However, the construction method of the above-mentioned three-dimensional character model has higher requirements on the shooting of two-dimen...

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