Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

512
This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
512
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

910
The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
910
Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

560
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
560
Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

680
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
680
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

1.0K
Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
1.0K
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

1.9K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
1.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Artificial intelligence detection of endoscopic moderate-to-severe ulcerative colitis: a novel tool to enhance clinical trial recruitment.

iGIE : innovation, investigation and insights·2026
Same author

Advanced computer-aided detection system exhibits no more false positives than experienced endoscopists in an image-based comparative study of colon polyps.

Frontiers in medicine·2026
Same author

Large reasoning models as thinking machines for medicine.

Nature biomedical engineering·2026
Same author

Beyond the Brush: Real-Time AI for Biliary Stricture Diagnosis.

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association·2026
Same author

Pancreatic Cancer AI: The Need for Prospective Outcome Studies.

Radiology·2026
Same author

Multimodal foundation models exploit text to make medical image predictions.

Nature communications·2026
Same journal

Trust, Reproducibility, and Progress: The Roles of Independent Blind Prediction and Assessment and Benchmarking in Computational Biology.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
Same journal

The Evolving Cyberinfrastructure at the National Institutes of Health to Support Data and AI in Biomedical Research.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
Same journal

Applications of AI & ML in Biomanufacturing of Cell and Gene Therapies.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
Same journal

AI for Health: Leveraging Artificial Intelligence to Revolutionize Healthcare.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
Same journal

Workshop Introduction: Advances of AI Methods in Single Cell Spatial Omics.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
Same journal

DRIVE-KG: Enhancing variant-phenotype association discovery in understudied complex diseases using heterogeneous knowledge graphs.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing·2026
See all related articles

Related Experiment Video

Updated: Feb 28, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
03:43

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Published on: July 11, 2025

854

ColonCrafter: A Depth Estimation Model for Colonoscopy Videos Using Diffusion Priors.

Romain Hardy1, Tyler M Berzin2, Pranav Rajpurkar1

  • 1Department of Biomedical Informatics, Harvard Medical School, USA.

Pacific Symposium on Biocomputing. Pacific Symposium on Biocomputing
|February 27, 2026
PubMed
Summary
This summary is machine-generated.

ColonCrafter, a new AI model, generates accurate depth maps from colonoscopy videos for 3D reconstruction. It ensures temporal consistency, improving 3D scene understanding in endoscopy.

More Related Videos

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

32.8K
Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice
07:41

Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice

Published on: February 3, 2016

14.8K

Related Experiment Videos

Last Updated: Feb 28, 2026

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
03:43

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Published on: July 11, 2025

854
Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

32.8K
Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice
07:41

Video Imaging and Spatiotemporal Maps to Analyze Gastrointestinal Motility in Mice

Published on: February 3, 2016

14.8K

Area of Science:

  • Medical Imaging
  • Computer Vision
  • Artificial Intelligence

Background:

  • Accurate 3D scene understanding in colonoscopy is crucial but challenging.
  • Existing depth estimation models lack temporal consistency for 3D reconstruction.

Purpose of the Study:

  • To develop a temporally consistent depth estimation model for monocular colonoscopy videos.
  • To enable robust 3D scene understanding and reconstruction in endoscopic procedures.

Main Methods:

  • Developed ColonCrafter, a diffusion-based depth estimation model.
  • Utilized synthetic colonoscopy sequences to learn geometric priors.
  • Implemented a style transfer technique for domain adaptation of clinical videos.

Main Results:

  • ColonCrafter achieves state-of-the-art zero-shot performance on the C3VD dataset.
  • Demonstrated superior performance compared to general-purpose and endoscopy-specific methods.
  • Showcased clinically relevant applications like 3D point cloud generation and surface coverage assessment.

Conclusions:

  • ColonCrafter provides temporally consistent depth maps for colonoscopy.
  • The model offers a significant advancement for 3D reconstruction in endoscopy.
  • Future work may address full trajectory 3D reconstruction challenges.