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Kihyuk Sohn

42 accepted papers

2026

Realiz3D: 3D Generation Made Photorealistic via Domain-Aware Learning

CVPR 2026

We often aim to generate images that are both photorealistic and 3D-consistent, adhering to precise geometry, material, and viewpoint controls. Typically, this is achieved by fine-tuning an image generator, pre-trained on billions of real images, using renders of synthetic 3D assets, where annotatio

Cited by 0SourceScholar
2026

WorldGen: From Text to Traversable and Interactive 3D Worlds

CVPR 2026

We introduce WorldGen, a method for generating large, fully formed, navigable 3D worlds from a single text prompt. Existing approaches to 3D scene generation often trade off scene diversity, completeness, and correctness in different ways. We push this envelope by producing large scenes explicitly d

Cited by 0SourceScholar
2025

Where is the answer? An empirical study of positional bias for parametric knowledge extraction in language model

NAACL 2025long

Language model (LM) stores diverse factual knowledge in their parameters, which is learned during self-supervised training on unlabeled documents and is made extractable by instruction-tuning. For knowledge-intensive tasks, it is essential to memorize information in a way that makes it extractable f…

Cited by 0SourcePDFScholar
2024

Direct Consistency Optimization for Robust Customization of Text-to-Image Diffusion models

NeurIPS 2024poster

Text-to-image (T2I) diffusion models, when fine-tuned on a few personal images, can generate visuals with a high degree of consistency. However, such fine-tuned models are not robust; they often fail to compose with concepts of pretrained model or other fine-tuned models. To address this, we propose…

Cited by 1SourcePDFScholar
2024

DreamFlow: High-quality text-to-3D generation by Approximating Probability Flow

ICLR 2024spotlight

Recent progress in text-to-3D generation has been achieved through the utilization of score distillation methods: they make use of the pre-trained text-to-image (T2I) diffusion models by distilling via the diffusion model training objective. However, such an approach inevitably results in the use of…

Cited by 16SourcePDFScholar
2024

FineStyle: Fine-grained Controllable Style Personalization for Text-to-image Models

NeurIPS 2024poster

Few-shot fine-tuning of text-to-image (T2I) generation models enables people to create unique images in their own style using natural languages without requiring extensive prompt engineering. However, fine-tuning with only a handful, as little as one, of image-text paired data prevents fine-grained…

Cited by 4SourcePDFScholar
2024

Instruct-Imagen: Image Generation with Multi-modal Instruction

CVPR 2024poster

This paper presents Instruct-Imagen a model that tackles heterogeneous image generation tasks and generalizes across unseen tasks. We introduce multi-modal instruction for image generation a task representation articulating a range of generation intents with precision. It uses natural language to am…

Cited by 42SourcePDFScholar
2024

Language Model Beats Diffusion - Tokenizer is key to visual generation

ICLR 2024poster

While Large Language Models (LLMs) are the dominant models for generative tasks in language, they do not perform as well as diffusion models on image and video generation. To effectively use LLMs for visual generation, one crucial component is the visual tokenizer that maps pixel-space inputs to dis…

Cited by 296SourcePDFScholar
2024

Photorealistic Video Generation with Diffusion Models

ECCV 2024poster

"We present , a diffusion transformer for photorealistic video generation from text prompts. Our approach has two key design decisions. First, we use a causal encoder to jointly compress images and videos within a unified latent space, enabling training and generation across modalities. Second, for…

Cited by 188SourcePDFScholar
2024

VideoPoet: A Large Language Model for Zero-Shot Video Generation

ICML 2024oral

We present VideoPoet, a language model capable of synthesizing high-quality video from a large variety of conditioning signals. VideoPoet employs a decoder-only transformer architecture that processes multimodal inputs -- including images, videos, text, and audio. The training protocol follows that…

Cited by 257SourcePDFScholar
2023

Collaborative Score Distillation for Consistent Visual Editing

NeurIPS 2023poster

Generative priors of large-scale text-to-image diffusion models enable a wide range of new generation and editing applications on diverse visual modalities. However, when adapting these priors to complex visual modalities, often represented as multiple images (e.g., video or 3D scene), achieving con…

Cited by 22SourcePDFScholar
2023

FormNetV2: Multimodal Graph Contrastive Learning for Form Document Information Extraction

ACL 2023long

The recent advent of self-supervised pre-training techniques has led to a surge in the use of multimodal learning in form document understanding. However, existing approaches that extend the mask language modeling to other modalities require careful multi-task tuning, complex reconstruction target d…

2023

MAGVIT: Masked Generative Video Transformer

CVPR 2023highlight

We introduce the MAsked Generative VIdeo Transformer, MAGVIT, to tackle various video synthesis tasks with a single model. We introduce a 3D tokenizer to quantize a video into spatial-temporal visual tokens and propose an embedding method for masked video token modeling to facilitate multi-task lear…

2023

MaskSketch: Unpaired Structure-Guided Masked Image Generation

CVPR 2023highlight

Recent conditional image generation methods produce images of remarkable diversity, fidelity and realism. However, the majority of these methods allow conditioning only on labels or text prompts, which limits their level of control over the generation result. In this paper, we introduce MaskSketch,…

2023

Pic2Word: Mapping Pictures to Words for Zero-Shot Composed Image Retrieval

CVPR 2023poster

In Composed Image Retrieval (CIR), a user combines a query image with text to describe their intended target. Existing methods rely on supervised learning of CIR models using labeled triplets consisting of the query image, text specification, and the target image. Labeling such triplets is expensive…

2023

Prefix Conditioning Unifies Language and Label Supervision

CVPR 2023poster

Pretraining visual models on web-scale image-caption datasets has recently emerged as a powerful alternative to traditional pretraining on image classification data. Image-caption datasets are more "open-domain", containing broader scene types and vocabulary words, and result in models that have str…

Cited by 15SourcePDFScholar
2023

StyleDrop: Text-to-Image Synthesis of Any Style

NeurIPS 2023poster

Pre-trained large text-to-image models synthesize impressive images with an appropriate use of text prompts. However, ambiguities inherent in natural language, and out-of-distribution effects make it hard to synthesize arbitrary image styles, leveraging a specific design pattern, texture or material…

2023

Visual Prompt Tuning for Generative Transfer Learning

CVPR 2023poster

Learning generative image models from various domains efficiently needs transferring knowledge from an image synthesis model trained on a large dataset. We present a recipe for learning vision transformers by generative knowledge transfer. We base our framework on generative vision transformers repr…

2022

AdaMatch: A Unified Approach to Semi-Supervised Learning and Domain Adaptation

ICLR 2022poster

We extend semi-supervised learning to the problem of domain adaptation to learn significantly higher-accuracy models that train on one data distribution and test on a different one. With the goal of generality, we introduce AdaMatch, a unified solution for unsupervised domain adaptation (UDA), semi-…

2021

$i$-Mix: A Domain-Agnostic Strategy for Contrastive Representation Learning

ICLR 2021poster

Contrastive representation learning has shown to be effective to learn representations from unlabeled data. However, much progress has been made in vision domains relying on data augmentations carefully designed using domain knowledge. In this work, we propose i-Mix, a simple yet effective domain-ag…

2021

CReST: A Class-Rebalancing Self-Training Framework for Imbalanced Semi-Supervised Learning

CVPR 2021poster

Semi-supervised learning on class-imbalanced data, although a realistic problem, has been under studied. While existing semi-supervised learning (SSL) methods are known to perform poorly on minority classes, we find that they still generate high precision pseudo-labels on minority classes. By exploi…

Cited by 349PDFcodeScholar
2021

Controlling Neural Networks with Rule Representations

NeurIPS 2021poster

We propose a novel training method that integrates rules into deep learning, in a way the strengths of the rules are controllable at inference. Deep Neural Networks with Controllable Rule Representations (DeepCTRL) incorporates a rule encoder into the model coupled with a rule-based objective, enabl…

Cited by 50SourcePDFScholar
2021

CutPaste: Self-Supervised Learning for Anomaly Detection and Localization

CVPR 2021poster

We aim at constructing a high performance model for defect detection that detects unknown anomalous patterns of an image without anomalous data. To this end, we propose a two-stage framework for building anomaly detectors using normal training data only. We first learn self-supervised deep represent…

Cited by 1095PDFScholar
2021

Learning and Evaluating Representations for Deep One-Class Classification

ICLR 2021poster

We present a two-stage framework for deep one-class classification. We first learn self-supervised representations from one-class data, and then build one-class classifiers on learned representations. The framework not only allows to learn better representations, but also permits building one-class…

2021

Object-aware Contrastive Learning for Debiased Scene Representation

NeurIPS 2021poster

Contrastive self-supervised learning has shown impressive results in learning visual representations from unlabeled images by enforcing invariance against different data augmentations. However, the learned representations are often contextually biased to the spurious scene correlations of different…

2020

FixMatch: Simplifying Semi-Supervised Learning with Consistency and Confidence

NeurIPS 2020poster

Semi-supervised learning (SSL) provides an effective means of leveraging unlabeled data to improve a model’s performance. This domain has seen fast progress recently, at the cost of requiring more complex methods. In this paper we propose FixMatch, an algorithm that is a significant simplification o…

2020

Improving Face Recognition by Clustering Unlabeled Faces in the Wild

ECCV 2020poster

While deep face recognition has benefited significantly from large-scale labeled data, current research is focused on leveraging unlabeled data to further boost performance, reducing the cost of human annotation. Prior work has mostly been in controlled settings, where the labeled and unlabeled data…

Cited by 22SourcePDFScholar
2020

ReMixMatch: Semi-Supervised Learning with Distribution Matching and Augmentation Anchoring

ICLR 2020poster

We improve the recently-proposed ``MixMatch semi-supervised learning algorithm by introducing two new techniques: distribution alignment and augmentation anchoring. - Distribution alignment encourages the marginal distribution of predictions on unlabeled data to be close to the marginal distribution…

Cited by 0SourcecodeScholar
2020

Towards Universal Representation Learning for Deep Face Recognition

CVPR 2020poster

Recognizing wild faces is extremely hard as they appear with all kinds of variations. Traditional methods either train with specifically annotated variation data from target domains, or by introducing unlabeled target variation data to adapt from the training data. Instead, we propose a universal re…

Cited by 197PDFScholar
2019

Domain Adaptation for Structured Output via Discriminative Patch Representations

ICCV 2019oral

Predicting structured outputs such as semantic segmentation relies on expensive per-pixel annotations to learn supervised models like convolutional neural networks. However, models trained on one data domain may not generalize well to other domains without annotations for model finetuning. To avoid…

Cited by 413PDFcodeScholar
2019

Feature Transfer Learning for Face Recognition With Under-Represented Data

CVPR 2019poster

Despite the large volume of face recognition datasets, there is a significant portion of subjects, of which the samples are insufficient and thus under-represented. Ignoring such significant portion results in insufficient training data. Training with under-represented data leads to biased classifie…

Cited by 396PDFScholar
2019

Gotta Adapt 'Em All: Joint Pixel and Feature-Level Domain Adaptation for Recognition in the Wild

CVPR 2019poster

Recent developments in deep domain adaptation have allowed knowledge transfer from a labeled source domain to an unlabeled target domain at the level of intermediate features or input pixels. We propose that advantages may be derived by combining them, in the form of different insights that lead to…

Cited by 54PDFScholar
2019

Unsupervised Domain Adaptation for Distance Metric Learning

ICLR 2019poster

Unsupervised domain adaptation is a promising avenue to enhance the performance of deep neural networks on a target domain, using labels only from a source domain. However, the two predominant methods, domain discrepancy reduction learning and semi-supervised learning, are not readily applicable whe…

Cited by 66SourcePDFScholar
2018

Learning to Adapt Structured Output Space for Semantic Segmentation

CVPR 2018poster

Convolutional neural network-based approaches for semantic segmentation rely on supervision with pixel-level ground truth, but may not generalize well to unseen image domains. As the labeling process is tedious and labor intensive, developing algorithms that can adapt source ground truth labels to t…

2017

Reconstruction-Based Disentanglement for Pose-Invariant Face Recognition

ICCV 2017poster

Deep neural networks (DNNs) trained on large-scale datasets have recently achieved impressive improvements in face recognition. But a persistent challenge remains to develop methods capable of handling large pose variations that are relatively under-represented in training data. This paper presents…

Cited by 189PDFScholar
2017

Unsupervised Domain Adaptation for Face Recognition in Unlabeled Videos

ICCV 2017poster

Despite rapid advances in face recognition, there remains a clear gap between the performance of still image-based face recognition and video-based face recognition, due to the vast difference in visual quality between the domains and the difficulty of curating diverse large-scale video datasets. Th…

Cited by 147PDFScholar
2016

Understanding and Improving Convolutional Neural Networks via Concatenated Rectified Linear Units

ICML 2016poster

Recently, convolutional neural networks (CNNs) have been used as a powerful tool to solve many problems of machine learning and computer vision. In this paper, we aim to provide insight on the property of convolutional neural networks, as well as a generic method to improve the performance of many C…

Cited by 693SourcePDFScholar
2015

Improving Object Detection With Deep Convolutional Networks via Bayesian Optimization and Structured Prediction

CVPR 2015poster

Object detection systems based on the deep convolutional neural network (CNN) have recently made ground- breaking advances on several object detection benchmarks. While the features learned by these high-capacity neural networks are discriminative for categorization, inaccurate localization is still…

2015

Learning Structured Output Representation using Deep Conditional Generative Models

NeurIPS 2015poster

Supervised deep learning has been successfully applied for many recognition problems in machine learning and computer vision. Although it can approximate a complex many-to-one function very well when large number of training data is provided, the lack of probabilistic inference of the current superv…

Cited by 4227SourcePDFScholar