中圖分類號：TP79 文獻標(biāo)志碼：A DOI: 10.16157/j.issn.0258-7998.256772
中文引用格式： 鄧百川，程天宇，王軍玉，等. 基于圖像金字塔與雙線性插值的點云融合研究[J]. 電子技術(shù)應(yīng)用，2026，52(3)：79-83.
英文引用格式： Deng Baichuan，Cheng Tianyu，Wang Junyu，et al. Research on point cloud fusion based on image pyramid and bilinear interpolation[J]. Application of Electronic Technique，2026，52(3)：79-83.

Research on point cloud fusion based on image pyramid and bilinear interpolation

Abstract： As one of the key technologies in remote sensing-based 3D reconstruction, point cloud and image fusion faces challenges in traditional approaches, such as high computational cost and difficulty in balancing efficiency and data precision. This paper proposes an efficient point cloud color fusion strategy that integrates image pyramids with bilinear interpolation, while introducing OpenMP for parallel optimization. The method leverages the pyramid structure to enable rapid multi-resolution localization and adaptive regional interpolation, effectively improving fusion efficiency while preserving fine details. Experiments conducted on two datasets demonstrate that the proposed approach maintains high fusion accuracy while achieving a 3.6~3.8 fold improvement in processing speed. The performance gain is especially notable for high-density point cloud data. This method not only provides high-precision data support for 3D modeling of power transmission corridors but also offers important technical support for automated inspection.

Key words : point cloud fusion；image pyramid；bilinear interpolation；OpenMP；remote sensing 3D reconstruction