Prof. Allison Okamura Profile

Prof. Allison Okamura

at Stanford Univ.

SPIE Involvement:

Author

Publications (2)

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 | 3 April 2023 Presentation

Seeing and feeling in robot-assisted surgery (Conference Presentation)

Allison Okamura

Proceedings Volume 12466, 1246618 (2023) https://doi.org/10.1117/12.2657574

Read Abstract +

Haptic devices allow touch-based information transfer between humans and their environment. In minimally invasive surgery, a human teleoperator benefits from both visual and haptic feedback regarding the interaction forces between instruments and tissues. In this talk, I will discuss mechanisms for stable and effective haptic feedback, as well as how surgeons and autonomous systems can use visual feedback in lieu of haptic feedback. For haptic feedback, we focus on skin deformation feedback, which provides compelling information about instrument-tissue interactions with smaller actuators and larger stability margins compared to traditional kinesthetic feedback. For visual feedback, we evaluate the effect of training on human teleoperators’ ability to visually estimate forces through a telesurgical robot. In addition, we design and characterize multimodal deep learning-based methods to estimate interaction forces during tissue manipulation for both automated performance evaluation and delivery of haptics-based training stimuli. Finally, we describe the next generation of soft, flexible surgical instruments and the opportunities and challenges they present for seeing and feeling in robot-assisted surgery.

Proceedings Article | 18 April 2022 Presentation

Wearable haptic devices for ubiquitous communication

Allison Okamura

Proceedings Volume PC12042, PC1204201 (2022) https://doi.org/10.1117/12.2617849

Read Abstract +

Haptic devices allow touch-based information transfer between humans and intelligent systems, enabling communication in a salient but private manner that frees other sensory channels. For such devices to become ubiquitous, their physical and computational aspects must be intuitive and unobtrusive. The amount of information that can be transmitted through touch is limited in large part by the location, distribution, and sensitivity of human mechanoreceptors. Not surprisingly, many haptic devices are designed to be held or worn at the highly sensitive fingertips, yet stimulation using a device attached to the fingertips precludes natural use of the hands. Thus, we explore the design of a wide array of haptic feedback mechanisms, ranging from devices that can be actively touched by the fingertips to multi-modal haptic actuation mounted on the arm. We demonstrate how these devices are effective in virtual reality, human-machine communication, and human-human communication.

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