2016 - 2019

EarTouch: Facilitating Smartphone Use for Visually Impaired People in Public and Mobile Scenarios

CHI 2019 [DOI]

 

Interacting with a smartphone using touch and speech output is challenging for visually impaired people in public and mobile scenarios, where only one hand may be available for input (e.g. with the other one holding a cane) and privacy may not be guaranteed when playing speech output using the speakers. We propose EarTouch, an one-handed interaction technique that allows the users to interact with a smartphone touching the ear on the screen. Users hold the smartphone in a talking position and listen to speech output from ear speaker privately. EarTouch also brings us an step closer to the inclusive design for all users who may suffer from situational disabilities. 


Facilitating Temporal Synchronous Target Selection through User Behavior Modeling

IMWUT 2019 [DOI]

 

Temporal synchronous target selection is an association-free selection technique: users select a target by generating signals (e.g., finger taps and hand claps) in sync with its unique temporal pattern. However, classical pattern set design and input recognition algorithm of such techniques did not leverage users' behavioral information, which limits their robustness to imprecise inputs. In this paper, we improve these two key components by modeling users' interaction behavior. We also tested a novel Bayesian, which achieved higher selection accuracy than the Correlation recognizer when the input sequence is short. The informal evaluation results show that the selection technique can be effectively scaled to different modalities and sensing techniques.


Auxiliary diagnosis System for Epilepsy

 

An sEEG intelligent cloud processing system designed to provide a more effective means for epilepsy surgery planning and research on the pathogenesis of epilepsy. Proper visualization of the signal data could help neurosurgeons to better position the lesion and algorithm have the potential to dig out patterns of seizure from original data, which may be difficult for human to find.

SENTHESIA: Adding Synesthesia Experience to Photos

2018 GIX Innovation Competition Semi-Finalist

 

An integrated multi-modal solution for adding synesthesia experience to ordinary food photos. Using natural language processing and visual recognition, SENTHESIA learn from the comments and photos from these websites and more materials online, to extract proper and delicate description from the semantic space, and analysis the key elements of taste and sense experience. Visually impaired users can also benefit from vivid descriptions beyond photos. Proposed and designed the concept, now cooperating with an interdisciplinary team to implement prototype. 


Tap-to-Pair: Associating Wireless Devices using Synchronous Tapping

IMWUT 2018 [DOI]

 

Currently, most wireless devices are associated by selecting the advertiser’s name from a list, which becomes less efficient and often misplaced. We propose a spontaneous device association mechanism that initiates pairing from advertising devices without hardware or firmware modifications. Users can then associate two devices by synchronizing taps on the advertising device with the blinking pattern displayed by the scanning device.  We believe that Tap-to-Pair can unlock more possibilities for impromptu interactions in smart spaces.


SmartTouch: Providing Intelligent Multi-modal Interface for Visually Impaired Smartphone Users

Tsinghua University 35th Challenge Cup, Second Prize

 

The closest way to natural user interface may be building intelligent proxy which can support multi-modal interactions according to end-users' intentions. We take our first step towards improving the user experience of visually impaired smartphone users. Based on interviews and participatory design activities, we try to explore the proper roles of graphic/haptic/voice UI in this case and establish guidelines for designing multi-model user interface. The intelligent proxy serves as the control center for building the bridge crossing "The Gulf of Execution and Evaluation" and it automatically performed the tasks when it understands the users' intentions.

Prevent Unintentional Touches on Smartphone

 

When interacting with smartphones, the holding hand may cause unintentional touches on the screen and disturb the interactions, which is annoying for users. We develop capacitive image processing algorithm to identify the patterns of unintentional touches, such as the process of touches "growing up" and the corresponding relationships among touches on the screen etc. Through mechanical and artificial test, our algorithm rejected 96.33% of unintentional touches while rejecting 1.32% of intentional touches. 


AirEx: Portable Air Purification Machine

2016 GIX Innovation Competition First Prize 🏆

 

A self-contained breathing apparatus which is an effective solution for breathing pure air without wearing a mask. As Design Lead, cooperated with teammates from University of Washington and Tsinghua Universtiy, created a mobile air filtration system for air pollution which provides adjustable assisted inhalation.

   

Before 2016

Intelligent Infusion System

Undergraduate thesis

 

Intravenous infusion is an important part of nursing work and one of the most commonly used medical treatments in clinical treatment. For a long time, most hospitals and medical institutions have relied on manual operations. Our solution includes infusion controllers and management system. Based on infrared sensor and stepper motor, infusion controllers can detect and control the infusion speed. The management system communicate the infusion information (patient, drug, infusion speed, time etc.) with the controllers through wireless.

📧Contact: violynne@ucla.edu

Latest News

April 16-18 2020: I will attend CRA-WP Grad Cohort Workshop for Women.

Feb 7 2020: One work accepted by CHI LBW.

Oct 25 2019: One work accepted by IMWUT.

Oct 22 2019: One work presented at UIST SIC.

Sep 20 2019: One paper submitted to CHI.

Aug 15 2019: One paper submitted to IMWUT.

July 30 2019: My first time attending SIGGRAPH.

 

Collaboration

UCLA Disabilities and Computing Program

Interconnected & Integrated Bioelectronics Lab @ Electrical and Computer Engineering, UCLA

NLP Group @ Computer Science, UCLA

Wearable Bioelectronics Research Group @ Bioengineering, UCLA

Laboratory for Clinical and Affective Psychophysiology @ Psychology, UCLA

 

Service

Accessibility Co-chair (UIST 2020)

Associate Chair (CHI LBWs 2020)

Peer Reviewer (CHI 2020, MobileHCI 2020)

Student Volunteer (UIST 2019)

Volunteer at Beijing Volunteer Service Foundation and the China Braille Library (2018)

 

Teaching

ECE 209AS Human-Computer Interaction, UCLA (2019 Fall)

 

Honors & Awards

Graduates with distinction & Outstanding Thesis Award , Tsinghua University 2019

Best Paper Honorable Mention Award (Top 5%), CHI 2019

National Scholarship (Top 1%), Ministry of Education of the People’s Republic of China, 2018

Second Prize, Tsinghua University 35th Challenge Cup, 2018

Comprehensive Scholarship (Top 4%), Tsinghua University, 2017

First Prize, GIX Innovation Competition, 2016

Outstanding Thesis Award, Tianjin University, 2015