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Related Experiment Video

Updated: May 31, 2026

Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality
06:18

Pioneering Patient-Specific Approaches for Precision Surgery Using Imaging and Virtual Reality

Published on: April 5, 2024

Enhanced visualisation for minimally invasive surgery.

Johannes Totz1, Kenko Fujii, Peter Mountney

  • 1The Hamlyn Centre for Robotic Surgery, Imperial College London, SW7 2AZ, London, UK. jtotz@imperial.ac.uk

International Journal of Computer Assisted Radiology and Surgery
|June 21, 2011
PubMed
Summary
This summary is machine-generated.

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This study introduces dynamic view expansion for minimally invasive surgery endoscopes, enhancing spatial awareness by integrating past footage. This method improves navigation and orientation by providing a broader visual context beyond the limited camera view.

Area of Science:

  • Medical Imaging
  • Computer Vision
  • Surgical Technology

Background:

  • Minimally invasive surgery relies on endoscopes with limited fields of view, demanding high spatial awareness.
  • Existing image mosaicing and dynamic view expansion techniques have not fully addressed visualization challenges in endoscopy.
  • Simultaneous Localization and Mapping (SLAM)-based methods show promise but lack effective visualization strategies.

Purpose of the Study:

  • To develop and evaluate a dynamic view expansion technique for endoscopic video feeds.
  • To enhance spatial awareness and orientation for surgeons during minimally invasive procedures.
  • To integrate previously observed imagery with live endoscopic video for a broader visual context.

Main Methods:

  • Live endoscopic video feed is augmented with historical footage.

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Published on: September 2, 2025

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Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
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  • A novel method highlights differences between live camera images and historical data.
  • Historical video data is faded to grayscale to simulate peripheral vision.
  • Specular highlights are removed using texture synthesis to reduce visual distractions.
  • The method was evaluated using in vivo and phantom sequences via user studies.

    • Main Results:

    • Effective integration of historical data with live video feed.
    • Demonstration of view expansion using a single texture domain via planar parameterization.
    • Successful removal of specular highlights without noticeable artifacts through texture synthesis.
    • Implicit encoding of endoscopic camera motion trajectories enhances scene awareness and temporal understanding.

    Conclusions:

    • Dynamic view expansion offers improved navigation and orientation by providing reference points outside the camera's field of view.
    • Effective integration of visual cues is crucial for clear and concise visualization in surgical endoscopy.