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Khoi Nguyen

21 accepted papers

2026

InverFill: One-Step Inversion for Enhanced Few-Step Diffusion Inpainting

CVPR 2026

Recent diffusion-based models achieve photorealism in image inpainting but require many sampling steps, limiting practical use. Few-step text-to-image models offer faster generation, but naively applying them to inpainting yields poor harmonization and artifacts between the background and inpainted

Cited by 0SourceScholar
2025

Any3DIS: Class-Agnostic 3D Instance Segmentation by 2D Mask Tracking

CVPR 2025poster

Existing 3D instance segmentation methods frequently encounter issues with over-segmentation, leading to redundant and inaccurate 3D proposals that complicate downstream tasks. This challenge arises from their unsupervised merging approach, where dense 2D instance masks are lifted across frames into…

Cited by 0SourcePDFScholar
2025

CSD-VAR: Content-Style Decomposition in Visual Autoregressive Models

ICCV 2025poster

Disentangling content and style from a single image, known as content-style decomposition (CSD), enables recontextualization of extracted content and stylization of extracted styles, offering greater creative flexibility in visual synthesis. While recent personalization methods have explored the dec…

Cited by 0SourcePDFScholar
2025

Semi-supervised 3D Semantic Scene Completion with 2D Vision Foundation Model Guidance

AAAI 2025technical

Accurate prediction of 3D semantic occupancy from 2D visual images is vital in enabling autonomous agents to comprehend their surroundings for planning and navigation. State-of-the-art methods typically employ fully supervised approaches, necessitating a huge labeled dataset acquired through expensi…

Cited by 0SourcePDFScholar
2025

SharpDepth: Sharpening Metric Depth Predictions Using Diffusion Distillation

CVPR 2025poster

We propose SharpDepth, a novel approach to monocular metric depth estimation that combines the metric accuracy of discriminative depth estimation methods (e.g., Metric3D, UniDepth) with the fine-grained boundary sharpness typically achieved by generative methods (e.g., Marigold, Lotus). Traditional…

Cited by 2SourcePDFScholar
2025

Supercharged One-step Text-to-Image Diffusion Models with Negative Prompts

ICCV 2025poster

The escalating demand for real-time image synthesis has driven significant advancements in one-step diffusion models, which inherently offer expedited generation speeds compared to traditional multi-step methods. However, this enhanced efficiency is frequently accompanied by a compromise in the cont…

Cited by 0SourcePDFScholar
2025

SwiftEdit: Lightning Fast Text-Guided Image Editing via One-Step Diffusion

CVPR 2025poster

Recent advances in text-guided image editing enable users to perform image edits through simple text inputs, leveraging the extensive priors of multi-step diffusion-based text-to-image models. However, these methods often fall short of the speed demands required for real-world and on-device applicat…

2025

SwiftTry: Fast and Consistent Video Virtual Try-On with Diffusion Models

AAAI 2025technical

Given an input video of a person and a new garment, the objective of this paper is to synthesize a new video where the person is wearing the specified garment while maintaining spatiotemporal consistency. Although significant advances have been made in image-based virtual try-on, extending these suc…

Cited by 15SourcePDFScholar
2024

Open3DIS: Open-Vocabulary 3D Instance Segmentation with 2D Mask Guidance

CVPR 2024poster

We introduce Open3DIS a novel solution designed to tackle the problem of Open-Vocabulary Instance Segmentation within 3D scenes. Objects within 3D environments exhibit diverse shapes scales and colors making precise instance-level identification a challenging task. Recent advancements in Open-Vocabu…

2024

SwiftBrush v2: Make Your One-step Diffusion Model Better Than Its Teacher

ECCV 2024poster

"In this paper, we aim to enhance the performance of SwiftBrush, a prominent one-step text-to-image diffusion model, to be competitive with its multi-step Stable Diffusion counterpart. Initially, we explore the quality-diversity trade-off between SwiftBrush and SD Turbo: the former excels in image d…

2023

Dataset Diffusion: Diffusion-based Synthetic Data Generation for Pixel-Level Semantic Segmentation

NeurIPS 2023poster

Preparing training data for deep vision models is a labor-intensive task. To address this, generative models have emerged as an effective solution for generating synthetic data. While current generative models produce image-level category labels, we propose a novel method for generating pixel-level…

2023

GaPro: Box-Supervised 3D Point Cloud Instance Segmentation Using Gaussian Processes as Pseudo Labelers

ICCV 2023poster

Instance segmentation on 3D point clouds (3DIS) is a longstanding challenge in computer vision, where state-of-the-art methods are mainly based on full supervision. As annotating ground truth dense instance masks is tedious and expensive, solving 3DIS with weak supervision has become more practical.…

Cited by 4PDFcodeScholar
2023

ISBNet: A 3D Point Cloud Instance Segmentation Network With Instance-Aware Sampling and Box-Aware Dynamic Convolution

CVPR 2023poster

Existing 3D instance segmentation methods are predominated by the bottom-up design -- manually fine-tuned algorithm to group points into clusters followed by a refinement network. However, by relying on the quality of the clusters, these methods generate susceptible results when (1) nearby objects w…

2022

Inductive and Transductive Few-Shot Video Classification via Appearance and Temporal Alignments

ECCV 2022poster

"We present a novel method for few-shot video classification, which performs appearance and temporal alignments. In particular, given a pair of query and support videos, we conduct appearance alignment via frame-level feature matching to achieve the appearance similarity score between the videos, wh…

2021

POODLE: Improving Few-shot Learning via Penalizing Out-of-Distribution Samples

NeurIPS 2021poster

In this work, we propose to use out-of-distribution samples, i.e., unlabeled samples coming from outside the target classes, to improve few-shot learning. Specifically, we exploit the easily available out-of-distribution samples to drive the classifier to avoid irrelevant features by maximizing the…