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Dogyun Park

11 accepted papers

2026

One Model, Many Budgets: Elastic Latent Interfaces for Diffusion Transformers

CVPR 2026

Diffusion transformers (DiTs) achieve high generative quality but lock FLOPs to image resolution, limiting principled latency-quality trade-offs, and allocate computation uniformly across input spatial tokens, wasting resource allocation to unimportant regions. We introduce Elastic Latent Interface

Cited by 0SourcecodeScholar
2026

Reinforcement Learning for Stair Locomotion of a Wheeled Bipedal Robot with Contact-Guided Behavior Cloning

ICRA 2026poster

This paper proposes a contact event-guided PPO with Behavior Cloning (PPO-BC) framework for stair locomotion of a 2-wheel 2-leg (2W2L) wheeled bipedal robot. Stair traversal is difficult because successful climbing depends on brief and sparse wheel-stair contact events that require precise leg lifti…

Cited by 0Scholar
2026

SPRINT: Sparse-Dense Residual Fusion for Efficient Diffusion Transformers

ICLR 2026poster

Diffusion Transformers (DiTs) deliver state-of-the-art generative performance but their quadratic training cost with sequence length makes large-scale pretraining prohibitively expensive. Token dropping can reduce training cost, yet naïve strategies degrade representations, and existing methods are…

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2026

Suppressing Initial Force Overshoot Using Admittance Filter and ASMC under Contact Location Uncertainty

ICRA 2026poster

This paper proposes a control method to mitigate initial force overshoot caused by contact surface position estimation errors. The proposed method adds a compensation term based on Adaptive Sliding Mode Control (ASMC) to a conventional admittance control structure. Also, to maintain position trackin…

Cited by 0Scholar
2025

Blockwise Flow Matching: Improving Flow Matching Models For Efficient High-Quality Generation

NeurIPS 2025poster

Recently, Flow Matching models have pushed the boundaries of high-fidelity data generation across a wide range of domains. It typically employs a single large network to learn the entire generative trajectory from noise to data. Despite their effectiveness, this design struggles to capture distinct…

Cited by 0SourceScholar
2024

Constant Acceleration Flow

NeurIPS 2024poster

Rectified flow and reflow procedures have significantly advanced fast generation by progressively straightening ordinary differential equation (ODE) flows under the assumption that image and noise pairs, known as coupling, can be approximated by straight trajectories with constant velocity. However,…

2024

DDMI: Domain-agnostic Latent Diffusion Models for Synthesizing High-Quality Implicit Neural Representations

ICLR 2024poster

Recent studies have introduced a new class of generative models for synthesizing implicit neural representations (INRs) that capture arbitrary continuous signals in various domains. These models opened the door for domain-agnostic generative models, but they often fail to achieve high-quality genera…

2024

Diffusion Prior-Based Amortized Variational Inference for Noisy Inverse Problems

ECCV 2024oral

"Recent studies on inverse problems have proposed posterior samplers that leverage the pre-trained diffusion models as powerful priors. These attempts have paved the way for using diffusion models in a wide range of inverse problems. However, the existing methods entail computationally demanding ite…

2024

Stochastic Conditional Diffusion Models for Robust Semantic Image Synthesis

ICML 2024poster

Semantic image synthesis (SIS) is a task to generate realistic images corresponding to semantic maps (labels). However, in real-world applications, SIS often encounters noisy user inputs. To address this, we propose Stochastic Conditional Diffusion Model (SCDM), which is a robust conditional diffusi…

2022

NaturalInversion: Data-Free Image Synthesis Improving Real-World Consistency

AAAI 2022technical

We introduce NaturalInversion, a novel model inversion-based method to synthesize images that agrees well with the original data distribution without using real data. In NaturalInversion, we propose: (1) a Feature Transfer Pyramid which uses enhanced image prior of the original data by combining the…