Mr. Shivaraman Ilango Profile

Shivaraman Ilango

at Leibniz Univ Hannover

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 28 May 2018 Paper

User evaluation study on illumination requirements to design an augmented reality projector for open liver surgery

Shivaraman Ilango, Marvin Knöchelmann, Lüder Alexander Kahrs, Alexander Wolf, Tobias Ortmaier, Roland Lachmayer

Proceedings Volume 10693, 106930R (2018) https://doi.org/10.1117/12.2309667

KEYWORDS: Projection systems, Surgery, Visibility, Liver, Augmented reality, Visualization, Image resolution, Statistical analysis, Tissues

Read Abstract +

Projector based augmented reality serves as an alternate visual guidance tool for surgeons when performing complicated open surgeries. In projector based augmented reality, image overlay projection is a technique that allows the surgeon to view the underlying anatomical information such as tissues, tumors etc. directly on the surface of the organ or the patient. This will provide an intuitive view of the surgical navigation data by combining the surgeon’s real world view with the preoperative three dimensional virtual models or instructions. Thus the strain on the surgeon to mentally align and visualize the preoperative data with intraoperative scene is greatly reduced. There are multiple stationary and handheld projectors available in the market today for this purpose. During surgery, stationary projectors mounted on a rack or under the ceiling suffer from a loss of adjustability and further cause shadowing issues when the surgeon occludes the scene. Although hand-held projectors do not have these disadvantages, they have major problems in terms of illuminance and luminous flux. The amount of light at which the hand-held projectors can project virtual additional information on to the patient is very low especially when the surgical lights are switched on. This paper therefore aims to provide an analysis of the requirements for designing such a special hand-held, augmented reality projector system that could be used during surgery, through a user study. Various optical parameters which are a key to design an augmented reality projector such as illuminance, luminance, luminous flux etc. are measured. Apart from that, other parameters such as refresh rate, image size, resolution which are also some important criteria in designing such a special projector, are discussed in this paper with respect to our application.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years