Search Results for author: Dong Lao

Found 15 papers, 5 papers with code

Diffeomorphic Template Registration for Atmospheric Turbulence Mitigation

no code implementations6 May 2024 Dong Lao, Congli Wang, Alex Wong, Stefano Soatto

Rather than initializing a latent irradiance ("template") by heuristics to estimate deformation, we select one of the images as a reference, and model the deformation in this image by the aggregation of the optical flow from it to other images, exploiting a prior imposed by Central Limit Theorem.

WorDepth: Variational Language Prior for Monocular Depth Estimation

1 code implementation4 Apr 2024 Ziyao Zeng, Daniel Wang, Fengyu Yang, Hyoungseob Park, Yangchao Wu, Stefano Soatto, Byung-Woo Hong, Dong Lao, Alex Wong

To test this, we focus on monocular depth estimation, the problem of predicting a dense depth map from a single image, but with an additional text caption describing the scene.

3D Reconstruction Monocular Depth Estimation

AugUndo: Scaling Up Augmentations for Unsupervised Depth Completion

no code implementations15 Oct 2023 Yangchao Wu, Tian Yu Liu, Hyoungseob Park, Stefano Soatto, Dong Lao, Alex Wong

The sparse depth modality have seen even less as intensity transformations alter the scale of the 3D scene, and geometric transformations may decimate the sparse points during resampling.

Data Augmentation Depth Completion +1

Sub-token ViT Embedding via Stochastic Resonance Transformers

1 code implementation6 Oct 2023 Dong Lao, Yangchao Wu, Tian Yu Liu, Alex Wong, Stefano Soatto

Vision Transformer (ViT) architectures represent images as collections of high-dimensional vectorized tokens, each corresponding to a rectangular non-overlapping patch.

Depth Estimation Depth Prediction +6

Divided Attention: Unsupervised Multi-Object Discovery with Contextually Separated Slots

no code implementations4 Apr 2023 Dong Lao, Zhengyang Hu, Francesco Locatello, Yanchao Yang, Stefano Soatto

We introduce a method to segment the visual field into independently moving regions, trained with no ground truth or supervision.

Decoder Motion Segmentation +3

Surprising Instabilities in Training Deep Networks and a Theoretical Analysis

no code implementations4 Jun 2022 Yuxin Sun, Dong Lao, Ganesh Sundaramoorthi, Anthony Yezzi

We discover restrained numerical instabilities in current training practices of deep networks with stochastic gradient descent (SGD).

On the Viability of Monocular Depth Pre-training for Semantic Segmentation

no code implementations26 Mar 2022 Dong Lao, Alex Wong, Samuel Lu, Stefano Soatto

We explore how pre-training a model to infer depth from a single image compares to pre-training the model for a semantic task, e. g. ImageNet classification, for the purpose of downstream transfer to semantic segmentation.

Image Classification Monocular Depth Estimation +2

Accelerated PDEs for Construction and Theoretical Analysis of an SGD Extension

no code implementations NeurIPS Workshop DLDE 2021 Yuxin Sun, Dong Lao, Ganesh Sundaramoorthi, Anthony Yezzi

We introduce a recently developed framework PDE Acceleration, which is a variational approach to accelerated optimization with partial differential equations (PDE), in the context of optimization of deep networks.

Image Classification

Channel-Directed Gradients for Optimization of Convolutional Neural Networks

no code implementations25 Aug 2020 Dong Lao, Peihao Zhu, Peter Wonka, Ganesh Sundaramoorthi

We introduce optimization methods for convolutional neural networks that can be used to improve existing gradient-based optimization in terms of generalization error.

Phase Consistent Ecological Domain Adaptation

1 code implementation CVPR 2020 Yanchao Yang, Dong Lao, Ganesh Sundaramoorthi, Stefano Soatto

We introduce two criteria to regularize the optimization involved in learning a classifier in a domain where no annotated data are available, leveraging annotated data in a different domain, a problem known as unsupervised domain adaptation.

Segmentation Semantic Segmentation +1

Minimum Delay Object Detection From Video

1 code implementation ICCV 2019 Dong Lao, Ganesh Sundaramoorthi

We consider the problem of detecting objects, as they come into view, from videos in an online fashion.

Object object-detection +1

Extending Layered Models to 3D Motion

1 code implementation ECCV 2018 Dong Lao, Ganesh Sundaramoorthi

We consider the problem of inferring a layered representa-tion, its depth ordering and motion segmentation from a video in whichobjects may undergo 3D non-planar motion relative to the camera.

Motion Segmentation Object +2

Minimum Delay Moving Object Detection

no code implementations CVPR 2017 Dong Lao, Ganesh Sundaramoorthi

Our method is designed to detect the object(s) with minimum delay, i. e., frames after the object moves, constraining the false alarms.

Moving Object Detection Object +1

Quickest Moving Object Detection

no code implementations24 May 2016 Dong Lao, Ganesh Sundaramoorthi

We present a general framework and method for simultaneous detection and segmentation of an object in a video that moves (or comes into view of the camera) at some unknown time in the video.

Change Detection Motion Segmentation +4

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