A Reconstruction System for Industrial Pipeline Inner Walls Using Panoramic Image Stitching with Endoscopic Imaging

TL;DR

This paper introduces a specialized endoscopic image stitching system that transforms annular pipeline videos into panoramic images, enhancing defect detection and inspection efficiency.

Contribution

The system uniquely combines polar coordinate transformation with image stitching for efficient, detailed pipeline inner wall reconstruction from endoscope videos.

Findings

Efficient processing of endoscope videos into panoramic images.

Panoramic images preserve detailed features of pipeline walls.

Significantly improves inspection efficiency over traditional methods.

Abstract

Visual analysis and reconstruction of pipeline inner walls remain challenging in industrial inspection scenarios. This paper presents a dedicated reconstruction system for pipeline inner walls via industrial endoscopes, which is built on panoramic image stitching technology. Equipped with a custom graphical user interface (GUI), the system extracts key frames from endoscope video footage, and integrates polar coordinate transformation with image stitching techniques to unwrap annular video frames of pipeline inner walls into planar panoramic images. Experimental results demonstrate that the proposed method enables efficient processing of industrial endoscope videos, and the generated panoramic stitched images preserve all detailed features of pipeline inner walls in their entirety. This provides intuitive and accurate visual support for defect detection and condition assessment of pipeline inner walls. In comparison with the traditional frame-by-frame video review method, the proposed approach significantly elevates the efficiency of pipeline inner wall reconstruction and exhibits considerable engineering application value.