Zhangxing Bian

/dʒʌŋ ʃɪŋ, bian/

zbian4@jhu.edu          [Github] [Scholar]

Address: Johns Hopkins University, Baltimore, MD, USA

About

I am pursuing doctoral degree (Medical Image Analysis) at Johns Hopkins University. I received my M.S. (Computer Vision track) at University of Michigan in 2021. I completed my B.E. degree in ECE (Automation) at Southeast University in 2019. My research interests lie primarily in the area of medical image analysis, and applied machine learning.

News

Archived News

Publications

Published and Accepted [Full List]

Unpublished

Main Projects

Learning Pixel Trajectories with Multiscale Contrastive Random Walks

Goal: Unify optical flow and pixel-wise tracking

>>> See more results: [paper][website]

Aorta: Image Registration and Deformation Analysis

Goal: Measure the deformable change of aorta over time. 

Achievement: Propose a novel method to decompose the Jacobian into directional components; Apply the DL-based segmentation on CT.

Keywords: Deformable Registration, Directional Jacobian Component

>>> See more results: [paper][overview]

Weakly-supervised Segmentation in Skin Images

Goal: Perform weak-supervised segmentation for skin lesion images (vitiligo). 

Achievement: Propose a dataset; Propose a weak-supervised segmentation for vitiligo images, and achieves IoU at 71.4 which is comparable with SOTA ( e.g. PRM, SEC-CRF.)

Keywords: CNN, Saliency Propagation,  Weakly-supervised Segmentation

>>> See more results: [slides] [talk] [paper]

Side Projects

Estimate 6D Pose from Single RGB Image with Backpropagatable PnP

>>> More: [report]

Highlight Removal in Facial Images

>>> More: [paper] [overview]

More about these side projects (click to expand)

Estimate 6D Pose from Single RGB Image with Backpropagatable PnP (Technical Report)

Goal: Estimate 6D pose from single RGB image.

Achievement:  Our method achieves BOP score at 61.4 on YCB-V using only RGB images, which is 10.6 higher than original Pix2Pose’s performance.

Keywords:  6D pose,  PnP,  U-net,  single RGB

>>> More: [report]

Highlight Removal in Facial Images

Goal: Remove specular highlight in facial images

Achievement: Our method generates highlight-free images with high-quality details and fewer artifacts by adopting CGAN and multi-scale discriminators.

Keywords:  Highlight Removal,  Facial Image,  CGAN

>>> More: [paper] [overview]

Achievement: Improved the tracking robustness for planar object in the AR application, compared to AR-Toolkit framework; Developed an AR game based on improved framework.

Keywords: AR,  Planar Object Tracking

>>> See more results here...


Achievement: Implemented Double/Dueling DQN algorithm and Prioritised Experience method from scratch using Pytorch; and outperformed original Double DQN paper.

Keywords: Reinforcement Learning, Atari, Deep Q Learning ...

>>> See more results: [Github repo]


Synopsis: Keyframe Extraction and video condensation 

Achievement: Second Prize of National-level SRTP*; Implement a video condensation system from scratch using C++; Designed a novel motion-volume based keyframe extraction method; 

* Student Research Training Program

Keyword: K-means, Motion-volume, Graph-cut

>>> See more results here...


RMDS COVID-19 Challenge, 2020

Project Goal: Apply LSTM and LR models for spatio-temporal COVID-19 risk prediction.

Keywords:  COVID-19 risk score, LSTM, Linear Regression.

>>> See more results: [report]

Education

University of Michigan, Ann Arbor, USA

M.S. in Electrical & Computer Engineering with track in Computer Vision| 2019-2021

GPA: 4.0/ 4.0

Main Coursework:

Southeast University, Nanjing, China

(Ranked at 21 globally in Automation & Control according to ARWU.)

B.E. in Automation with concentration in Pattern Recognition and Intelligent Information| 2015.07-2019.06

Major GPA: 3.91/4.0 | GPA: 3.88/4.0

Main Coursework:

Academic Service

Reviewer for International Journals and Conferences

Image and Vision Computing (IVC) || ACM Multimedia (ACM-MM) || IEEE International Conference on Machine Learning and Applications (IEEE ICMLA)