The unnatural panoramic image transition between two adjacent viewpoints reduces the immersion and interactive experiences of 360° panoramic walkthrough systems. In this paper, a dynamic panoramic image rendering and smooth transition algorithm for adjacent viewpoints is proposed. First, the feature points of adjacent view images are extracted, a robust matching algorithm is used to establish adjacent point pairs, and the matching triangles are formed by using the homonymous points. Then, a dynamic transition model is formed by the simultaneous linear transitions of shape and texture for each control triangle. Finally, the smooth transition between adjacent viewpoints is implemented by overlaying the dynamic transition model with the 360° panoramic walkthrough scene. Experimental results show that this method has obvious advantages in visual representation with distinct visual movement. It can realize the smooth transition between two indoor panoramic stations with arbitrary station spacing, and its execution efficiency is up to 50 frames per second. It effectively enhances the interactivity and immersion of 360° panoramic walkthrough systems.

中文翻译：

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使用匹配的Delaunay三角斑块的邻近全景视点的平滑过渡算法

两个相邻视点之间不自然的全景图像过渡会减少360°全景漫游系统的沉浸感和互动体验。本文提出了一种动态的全景图像渲染和平滑过渡的相邻视点算法。首先，提取相邻视图图像的特征点，采用鲁棒匹配算法建立相邻点对，并通过同构点形成匹配三角形。然后，通过每个控制三角形的形状和纹理的同时线性过渡来形成动态过渡模型。最后，通过将动态过渡模型与360°全景漫游场景相叠加，可以实现相邻视点之间的平滑过渡。实验结果表明，该方法在视觉表现上具有明显的优势，具有明显的视觉运动。它可以以任意的站间距实现两个室内全景站之间的平滑过渡，其执行效率高达每秒50帧。它有效地增强了360°全景漫游系统的交互性和沉浸感。