no code implementations • 20 Mar 2024 • Jeffrey Zhang, Kedan Li, Shao-Yu Chang, David Forsyth
Virtual Try-on (VTON) involves generating images of a person wearing selected garments.
1 code implementation • 20 Feb 2024 • Qianqian Xie, Qingyu Chen, Aokun Chen, Cheng Peng, Yan Hu, Fongci Lin, Xueqing Peng, Jimin Huang, Jeffrey Zhang, Vipina Keloth, Xinyu Zhou, Huan He, Lucila Ohno-Machado, Yonghui Wu, Hua Xu, Jiang Bian
In response to this challenge, this study introduces Me-LLaMA, a novel medical LLM family that includes foundation models - Me-LLaMA 13/70B, along with their chat-enhanced versions - Me-LLaMA 13/70B-chat, developed through continual pre-training and instruction tuning of LLaMA2 using large medical datasets.
no code implementations • 4 Jan 2024 • Jeffrey Zhang, Shao-Yu Chang, Kedan Li, David Forsyth
The usual practice of training the denoiser with a very noisy image and starting inference with a sample of pure noise leads to inconsistent generated images during inference.
no code implementations • 10 Nov 2023 • Amir Ali Ahmadi, Abraar Chaudhry, Jeffrey Zhang
At each step, our $d^{\text{th}}$-order method uses semidefinite programming to construct and minimize a sum of squares-convex approximation to the $d^{\text{th}}$-order Taylor expansion of the function we wish to minimize.
no code implementations • 29 Nov 2022 • Kedan Li, Jeffrey Zhang, Shao-Yu Chang, David Forsyth
However, no current method can both control how the garment is worn -- including tuck or untuck, opened or closed, high or low on the waist, etc.. -- and generate realistic images that accurately preserve the properties of the original garment.
no code implementations • CVPR 2021 • Kedan Li, Min Jin Chong, Jeffrey Zhang, Jingen Liu
Prior works produce images that are filled with artifacts and fail to capture important visual details necessary for commercial applications.
1 code implementation • 27 Jan 2021 • Claire Chen, Krishnan Srinivasan, Jeffrey Zhang, Junwu Zhang
We use model-based trajectory optimization and control to plan and execute these primitives.
Robotics
no code implementations • 27 Aug 2020 • Jeffrey Zhang
These include the questions of (i) finding a local minimum, (ii) testing local minimality of a point, and (iii) deciding attainment of the optimal value.
no code implementations • 14 Aug 2020 • Amir Ali Ahmadi, Jeffrey Zhang
We consider the notions of (i) critical points, (ii) second-order points, (iii) local minima, and (iv) strict local minima for multivariate polynomials.
no code implementations • 12 Aug 2020 • Amir Ali Ahmadi, Jeffrey Zhang
We show that unless P=NP, there cannot be a polynomial-time algorithm that finds a point within Euclidean distance $c^n$ (for any constant $c \ge 0$) of a local minimizer of an $n$-variate quadratic function over a polytope.
no code implementations • ECCV 2020 • Ahmet Iscen, Jeffrey Zhang, Svetlana Lazebnik, Cordelia Schmid
We assume that the model is updated incrementally for new classes as new data becomes available sequentially. This requires adapting the previously stored feature vectors to the updated feature space without having access to the corresponding original training images.
no code implementations • 9 Oct 2018 • Nicholas Egan, Jeffrey Zhang, Kevin Shen
The Generator of a Generative Adversarial Network (GAN) is trained to transform latent vectors drawn from a prior distribution into realistic looking photos.
1 code implementation • 6 Jul 2018 • Geoffrey H. Tison, Jeffrey Zhang, Francesca N. Delling, Rahul C. Deo
We identified 36, 186 ECGs from the UCSF database that were 1) in normal sinus rhythm and 2) would enable training of specific models for estimation of cardiac structure or function or detection of disease.
no code implementations • 22 Jun 2017 • Jeffrey Zhang, Sravani Gajjala, Pulkit Agrawal, Geoffrey H. Tison, Laura A. Hallock, Lauren Beussink-Nelson, Eugene Fan, Mandar A. Aras, ChaRandle Jordan, Kirsten E. Fleischmann, Michelle Melisko, Atif Qasim, Alexei Efros, Sanjiv. J. Shah, Ruzena Bajcsy, Rahul C. Deo
Automated cardiac image interpretation has the potential to transform clinical practice in multiple ways including enabling low-cost serial assessment of cardiac function in the primary care and rural setting.