Challenges of 3D Surface Reconstruction in Capsule Endoscopy

Abstract

Essential for improving the accuracy and reliability of bowel cancer screening, three-dimensional (3D) surface reconstruction using capsule endoscopy (CE) images remains challenging due to CE hardware and software limitations. This report generally focuses on challenges associated with 3D visualization and specifically investigates the impact of the indeterminate selection of the angle of the line–of–sight on 3D surfaces. Furthermore, it demonstrates that impact through 3D surfaces viewed at the same azimuth angles and different elevation angles of the line–of–sight. The report concludes that 3D printing of reconstructed 3D surfaces can potentially overcome line–of–sight indeterminate selection and 2D screen visual restriction-related errors.

A 3D Reconstruction Method Based on Homogeneous De Bruijn-Encoded Structured Light

“…Since the spectral responses of the R, G, and B channels of color cameras are typically different, to make the captured color images have as similar contrast in the R, G, and B channels as possible, we can adjust the gain of each channel of the color camera and the intensity of the RGB image channels of the projection, as shown in Equation (1).…”

“…Three-dimensional reconstruction technology is an important branch of computer vision technology and a popular research field that combines computer vision and industrial measurement. However, there are still many challenges and limitations in the current field of 3D reconstruction [1].…”