Comparison of six display modes for a multi-resolution foveated laparoscope

Sangyoon Lee, Hong Hua, Mike Nguyen, Allan J Hamilton

Research output: Contribution to journalArticle

Abstract

Background: To overcome the field of view and ergonomic limitations of standard laparoscopes, we are developing a multi-resolution foveated laparoscope that can simultaneously obtain both wide- and zoomed-in-view images through a single scope. To facilitate the effective access to the dual views of images with different resolution and field coverage acquired by our laparoscope, six different display modes have been developed. Each of the six display modes has inherent advantages and disadvantages. This study compares the six display modes through a human-subject experiment, which was conducted with an emulated laparoscope using a 4K camera. Methods: Twenty-four subjects without medicine background performed three evaluation trials of a touching task with each of the display modes. Various objective measurements including task completion time, the number of collisions, gaze position, and tooltip position, and subjective preference for the display modes were recorded. Results: For all the measurements except for task completion time and moving speed of tooltip, there were statistically significant differences among the display modes. Although the focus plus warped context view mode was selected as one of the least preferred modes, it showed the best task performance. Conclusions: The unblocked wide context view was useful to provide a situational awareness even when it was severely distorted in some of the display modes, and information continuity played an important role in improving task performance. Moreover, the position change of viewing window coupled to the location of region of interest helped improve task performance, by providing an additional cue for spatial awareness.

Original languageEnglish (US)
JournalSurgical Endoscopy and Other Interventional Techniques
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Laparoscopes
Task Performance and Analysis
Data Display
Human Engineering
Cues
Medicine

Keywords

  • Display interface
  • Dual views
  • Focus + context
  • Laparoscope
  • Multi-resolution visualization
  • Overview + detail

ASJC Scopus subject areas

  • Surgery

Cite this

@article{496dd7b7024d42c8bcc482645c38e411,
title = "Comparison of six display modes for a multi-resolution foveated laparoscope",
abstract = "Background: To overcome the field of view and ergonomic limitations of standard laparoscopes, we are developing a multi-resolution foveated laparoscope that can simultaneously obtain both wide- and zoomed-in-view images through a single scope. To facilitate the effective access to the dual views of images with different resolution and field coverage acquired by our laparoscope, six different display modes have been developed. Each of the six display modes has inherent advantages and disadvantages. This study compares the six display modes through a human-subject experiment, which was conducted with an emulated laparoscope using a 4K camera. Methods: Twenty-four subjects without medicine background performed three evaluation trials of a touching task with each of the display modes. Various objective measurements including task completion time, the number of collisions, gaze position, and tooltip position, and subjective preference for the display modes were recorded. Results: For all the measurements except for task completion time and moving speed of tooltip, there were statistically significant differences among the display modes. Although the focus plus warped context view mode was selected as one of the least preferred modes, it showed the best task performance. Conclusions: The unblocked wide context view was useful to provide a situational awareness even when it was severely distorted in some of the display modes, and information continuity played an important role in improving task performance. Moreover, the position change of viewing window coupled to the location of region of interest helped improve task performance, by providing an additional cue for spatial awareness.",
keywords = "Display interface, Dual views, Focus + context, Laparoscope, Multi-resolution visualization, Overview + detail",
author = "Sangyoon Lee and Hong Hua and Mike Nguyen and Hamilton, {Allan J}",
year = "2018",
month = "1",
day = "1",
doi = "10.1007/s00464-018-6445-0",
language = "English (US)",
journal = "Surgical Endoscopy",
issn = "0930-2794",
publisher = "Springer New York",

}

TY - JOUR

T1 - Comparison of six display modes for a multi-resolution foveated laparoscope

AU - Lee, Sangyoon

AU - Hua, Hong

AU - Nguyen, Mike

AU - Hamilton, Allan J

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Background: To overcome the field of view and ergonomic limitations of standard laparoscopes, we are developing a multi-resolution foveated laparoscope that can simultaneously obtain both wide- and zoomed-in-view images through a single scope. To facilitate the effective access to the dual views of images with different resolution and field coverage acquired by our laparoscope, six different display modes have been developed. Each of the six display modes has inherent advantages and disadvantages. This study compares the six display modes through a human-subject experiment, which was conducted with an emulated laparoscope using a 4K camera. Methods: Twenty-four subjects without medicine background performed three evaluation trials of a touching task with each of the display modes. Various objective measurements including task completion time, the number of collisions, gaze position, and tooltip position, and subjective preference for the display modes were recorded. Results: For all the measurements except for task completion time and moving speed of tooltip, there were statistically significant differences among the display modes. Although the focus plus warped context view mode was selected as one of the least preferred modes, it showed the best task performance. Conclusions: The unblocked wide context view was useful to provide a situational awareness even when it was severely distorted in some of the display modes, and information continuity played an important role in improving task performance. Moreover, the position change of viewing window coupled to the location of region of interest helped improve task performance, by providing an additional cue for spatial awareness.

AB - Background: To overcome the field of view and ergonomic limitations of standard laparoscopes, we are developing a multi-resolution foveated laparoscope that can simultaneously obtain both wide- and zoomed-in-view images through a single scope. To facilitate the effective access to the dual views of images with different resolution and field coverage acquired by our laparoscope, six different display modes have been developed. Each of the six display modes has inherent advantages and disadvantages. This study compares the six display modes through a human-subject experiment, which was conducted with an emulated laparoscope using a 4K camera. Methods: Twenty-four subjects without medicine background performed three evaluation trials of a touching task with each of the display modes. Various objective measurements including task completion time, the number of collisions, gaze position, and tooltip position, and subjective preference for the display modes were recorded. Results: For all the measurements except for task completion time and moving speed of tooltip, there were statistically significant differences among the display modes. Although the focus plus warped context view mode was selected as one of the least preferred modes, it showed the best task performance. Conclusions: The unblocked wide context view was useful to provide a situational awareness even when it was severely distorted in some of the display modes, and information continuity played an important role in improving task performance. Moreover, the position change of viewing window coupled to the location of region of interest helped improve task performance, by providing an additional cue for spatial awareness.

KW - Display interface

KW - Dual views

KW - Focus + context

KW - Laparoscope

KW - Multi-resolution visualization

KW - Overview + detail

UR - http://www.scopus.com/inward/record.url?scp=85053529874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053529874&partnerID=8YFLogxK

U2 - 10.1007/s00464-018-6445-0

DO - 10.1007/s00464-018-6445-0

M3 - Article

C2 - 30206684

AN - SCOPUS:85053529874

JO - Surgical Endoscopy

JF - Surgical Endoscopy

SN - 0930-2794

ER -