基于隐式表征的绕视场景三维重建方法

• Format: Patent
• Language: Chinese
• Published: 14.02.2025
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

本发明公开了一种基于隐式表征的绕视场景三维重建方法，包括：使用激光器照射中继墙面，在中继墙面形成二次漫反射光斑，并通过照亮中继墙上的不同位置，在对面墙上生成不同角度的隐藏对象投影；通过光源估计方法估计二次光源所在三维坐标；通过二次光源在半球空间内向所有方向发射光线并终止于观测中继墙的物理关系建立神经阴影场模型，利用光线的累积透射率来表征光线传播到中继墙表面的概率；将构建神经阴影场模型的三维空间参数化表示为连续的MLP函数，并使用二值阴影标签监督光线累积透射率的优化，并最终通过深度积分获得隐藏空间的三维结构。该方法可以准确地重建隐藏物体的形状和轮廓细节。 The invention discloses an implicit representation-based around-view scene three-dimensional reconstruction method, which comprises the following steps of: irradiating a relay wall surface by using a laser, forming a secondary diffuse reflection light spot on the relay wall surface, and generating hidden object projections at different angles on an opposite wall by illuminating different positions on the relay wall; estimating the three-dimensional coordinates of the secondary light source through a light source estimation method; a neural shadow field model is established according to the physical relationship that a secondary light source emits light rays in all directions in a hemispherical space and ends in observation of a relay