← Search

Weikai Chen

37 accepted papers

2026

CaliTex: Geometry-Calibrated Attention for View-Coherent 3D Texture Generation

CVPR 2026

Despite major advances brought by diffusion-based models, current 3D texture generation systems remain hindered by cross-view inconsistency -- textures that appear convincing from one viewpoint often fail to align across others. We find that this issue arises from attention ambiguity, where unstruct

Cited by 0SourceScholar
2026

CoSMo3D: Open-World Promptable 3D Semantic Segmentation through LLM-Guided Canonical Spatial Modeling

CVPR 2026

Open-world promptable 3D semantic segmentation remains brittle as semantics are inferred in the input sensor coordinates. Yet, humans, in contrast, interpret parts via functional roles in a canonical space -- wings extend laterally, handles protrude to the side, and legs support from below. Psychoph

Cited by 0SourcecodeScholar
2026

DualPrim: Compact 3D Reconstruction with Positive and Negative Primitives

CVPR 2026

We present Compact 3D Reconstruction with Positive and Negative Primitives (DualPrim), a novel approach for reconstructing compact and topologically regular 3D meshes from multi-view images. Unlike traditional methods that rely on implicit representations such as signed distance functions, or explic

Cited by 0SourceScholar
2026

LumiTex: Towards High-Fidelity PBR Texture Generation with Illumination Context

ICLR 2026poster

Physically-based rendering (PBR) provides a principled standard for realistic material–lighting interactions in computer graphics. Despite recent advances in generating PBR textures, existing methods fail to address two fundamental challenges: 1) materials decomposition from image prompts under limi…

Cited by 0SourcecodeScholar
2026

OASIS: On-Demand Hierarchical Event Memory for Streaming Video Reasoning

CVPR 2026

Streaming video reasoning requires models to operate in a setting where history grows without bound while meaningful evidence remains scarce. In such a landscape, relevant signal is like an oasis -- small, critical, and easily lost in a desert of redundancy. Enlarging memory only widens the desert;

Cited by 0SourcecodeScholar
2025

AdaDrive: Self-Adaptive Slow-Fast System for Language-Grounded Autonomous Driving

ICCV 2025poster

Effectively integrating Large Language Models (LLMs) into autonomous driving requires a balance between leveraging high-level reasoning and maintaining real-time efficiency. Existing approaches either activate LLMs too frequently, causing excessive computational overhead, or use fixed schedules, fai…

2025

DeepShield: Fortifying Deepfake Video Detection with Local and Global Forgery Analysis

ICCV 2025poster

Recent advances in deep generative models have made it easier to manipulate face videos, raising significant concerns about their potential misuse for fraud and misinformation. Existing detectors often perform well in in-domain scenarios but fail to generalize across diverse manipulation techniques…

Cited by 0SourcePDFScholar
2025

GUIDED: Granular Understanding via Identification, Detection, and Discrimination for Fine-Grained Open-Vocabulary Object Detection

NeurIPS 2025poster

Fine-grained open-vocabulary object detection (FG-OVD) aims to detect novel object categories described by attribute-rich texts. While existing open-vocabulary detectors show promise at the base-category level, they underperform in fine-grained settings due to the semantic entanglement of subjects a…

Cited by 0SourceScholar
2025

Towards Long-Horizon Vision-Language Navigation: Platform, Benchmark and Method

CVPR 2025poster

Existing Vision-Language Navigation (VLN) methods primarily focus on single-stage navigation, limiting their effectiveness in multi-stage and long-horizon tasks within complex and dynamic environments. To address these limitations, we propose a novel VLN task, named Long-Horizon Vision-Language Navi…

Cited by 5SourcePDFScholar
2024

MarvelOVD: Marrying Object Recognition and Vision-Language Models for Robust Open-Vocabulary Object Detection

ECCV 2024poster

"Learning from pseudo-labels that generated with VLMs (Vision Language Models) has been shown as a promising solution to assist open vocabulary detection (OVD) in recent studies. However, due to the domain gap between VLM and vision-detection tasks, pseudo-labels produced by the VLMs are prone to be…

2024

OVER-NAV: Elevating Iterative Vision-and-Language Navigation with Open-Vocabulary Detection and StructurEd Representation

CVPR 2024poster

Recent advances in Iterative Vision-and-Language Navigation(IVLN) introduce a more meaningful and practical paradigm of VLN by maintaining the agent's memory across tours of scenes. Although the long-term memory aligns better with the persistent nature of the VLN task it poses more challenges on how…

Cited by 8SourcePDFScholar
2023

Divide and Adapt: Active Domain Adaptation via Customized Learning

CVPR 2023highlight

Active domain adaptation (ADA) aims to improve the model adaptation performance by incorporating the active learning (AL) techniques to label a maximally-informative subset of target samples. Conventional AL methods do not consider the existence of domain shift, and hence, fail to identify the truly…

2023

Get3DHuman: Lifting StyleGAN-Human into a 3D Generative Model Using Pixel-Aligned Reconstruction Priors

ICCV 2023poster

Fast generation of high-quality 3D digital humans is important to a vast number of applications ranging from entertainment to professional concerns. Recent advances in differentiable rendering have enabled the training of 3D generative models without requiring 3D ground truths. However, the quality…

Cited by 24PDFScholar
2023

NeAT: Learning Neural Implicit Surfaces With Arbitrary Topologies From Multi-View Images

CVPR 2023poster

Recent progress in neural implicit functions has set new state-of-the-art in reconstructing high-fidelity 3D shapes from a collection of images. However, these approaches are limited to closed surfaces as they require the surface to be represented by a signed distance field. In this paper, we propos…

2023

NeUDF: Leaning Neural Unsigned Distance Fields With Volume Rendering

CVPR 2023poster

Multi-view shape reconstruction has achieved impressive progresses thanks to the latest advances in neural implicit surface rendering. However, existing methods based on signed distance function (SDF) are limited to closed surfaces, failing to reconstruct a wide range of real-world objects that cont…

Cited by 58SourcePDFScholar
2023

NerVE: Neural Volumetric Edges for Parametric Curve Extraction From Point Cloud

CVPR 2023poster

Extracting parametric edge curves from point clouds is a fundamental problem in 3D vision and geometry processing. Existing approaches mainly rely on keypoint detection, a challenging procedure that tends to generate noisy output, making the subsequent edge extraction error-prone. To address this is…

2023

RankMatch: Fostering Confidence and Consistency in Learning with Noisy Labels

ICCV 2023poster

Learning with noisy labels (LNL) is one of the most important and challenging problems in weakly-supervised learning. Recent advances adopt the sample selection strategy to mitigate the interference of noisy labels and use small-loss criteria to select clean samples. However, the one-dimensional los…

Cited by 14PDFScholar
2022

3PSDF: Three-Pole Signed Distance Function for Learning Surfaces With Arbitrary Topologies

CVPR 2022poster

Recent advances in learning 3D shapes using neural implicit functions have achieved impressive results by breaking the previous barrier of resolution and diversity for varying topologies. However, most of such approaches are limited to closed surfaces as they require the space to be divided into ins…

Cited by 36PDFScholar
2022

Divide and Contrast: Source-free Domain Adaptation via Adaptive Contrastive Learning

NeurIPS 2022accept

We investigate a practical domain adaptation task, called source-free domain adaptation (SFUDA), where the source pretrained model is adapted to the target domain without access to the source data. Existing techniques mainly leverage self-supervised pseudo-labeling to achieve class-wise global align…

2022

Dual Adversarial Adaptation for Cross-Device Real-World Image Super-Resolution

CVPR 2022oral

Due to the sophisticated imaging process, an identical scene captured by different cameras could exhibit distinct imaging patterns, introducing distinct proficiency among the super-resolution (SR) models trained on images from different devices. In this paper, we investigate a novel and practical ta…

Cited by 21PDFcodeScholar
2022

Exemplar-Based Pattern Synthesis With Implicit Periodic Field Network

CVPR 2022poster

Synthesis of ergodic, stationary visual patterns is widely applicable in texturing, shape modeling, and digital content creation. The wide applicability of this technique thus requires the pattern synthesis approaches to be scalable, diverse, and authentic. In this paper, we propose an exemplar-base…

Cited by 9PDFScholar
2022

HSDF: Hybrid Sign and Distance Field for Modeling Surfaces with Arbitrary Topologies

NeurIPS 2022accept

Neural implicit function based on signed distance field (SDF) has achieved impressive progress in reconstructing 3D models with high fidelity. However, such approaches can only represent closed shapes. Recent works based on unsigned distance function (UDF) are proposed to handle both watertight and…

Cited by 21SourcePDFScholar
2021

3DCaricShop: A Dataset and a Baseline Method for Single-View 3D Caricature Face Reconstruction

CVPR 2021poster

Caricature is an artistic representation that deliberately exaggerates the distinctive features of a human face to convey humor or sarcasm. However, reconstructing a 3D caricature from a 2D caricature image remains a challenging task, mostly due to the lack of data. We propose to fill this gap by in…

Cited by 27PDFScholar
2021

Equivariant Point Network for 3D Point Cloud Analysis

CVPR 2021poster

Features that are equivariant to a larger group of symmetries have been shown to be more discriminative and powerful in recent studies. However, higher-order equivariant features often come with an exponentially-growing computational cost. Furthermore, it remains relatively less explored how rotatio…

Cited by 132PDFcodeScholar
2021

OctField: Hierarchical Implicit Functions for 3D Modeling

NeurIPS 2021poster

Recent advances in localized implicit functions have enabled neural implicit representation to be scalable to large scenes. However, the regular subdivision of 3D space employed by these approaches fails to take into account the sparsity of the surface occupancy and the varying granularities of geom…

Cited by 38SourcePDFScholar
2021

Trash To Treasure: Harvesting OOD Data With Cross-Modal Matching for Open-Set Semi-Supervised Learning

ICCV 2021poster

Open-set semi-supervised learning (open-set SSL) investigates a challenging but practical scenario where out-of-distribution (OOD) samples are contained in the unlabeled data. While the mainstream technique seeks to completely filter out the OOD samples for semi-supervised learning (SSL), we propose…

Cited by 76PDFScholar
2020

Deep Fashion3D: A Dataset and Benchmark for 3D Garment Reconstruction from Single Images

ECCV 2020poster

High-fidelity clothing reconstruction is the key to achieving photorealism in a wide range of applications including human digitization, virtual try-on, etc. Recent advances in learning-based approaches have accomplished unprecedented accuracy in recovering unclothed human shape and pose from single…

2020

Intuitive, Interactive Beard and Hair Synthesis With Generative Models

CVPR 2020oral

We present an interactive approach to synthesizing realistic variations in facial hair in images, ranging from subtle edits to existing hair to the addition of complex and challenging hair in images of clean-shaven subjects. To circumvent the tedious and computationally expensive tasks of modeling,…

Cited by 36PDFScholar
2019

Deep Mesh Reconstruction From Single RGB Images via Topology Modification Networks

ICCV 2019poster

Reconstructing the 3D mesh of a general object from a single image is now possible thanks to the latest advances of deep learning technologies. However, due to the nontrivial difficulty of generating a feasible mesh structure, the state-of-the-art approaches often simplify the problem by learning th…

Cited by 246PDFcodeScholar
2019

Learning Perspective Undistortion of Portraits

ICCV 2019oral

Near-range portrait photographs often contain perspective distortion artifacts that bias human perception and challenge both facial recognition and reconstruction techniques. We present the first deep learning based approach to remove such artifacts from unconstrained portraits. In contrast to the p…

Cited by 33PDFScholar
2019

Soft Rasterizer: A Differentiable Renderer for Image-Based 3D Reasoning

ICCV 2019oral

Rendering bridges the gap between 2D vision and 3D scenes by simulating the physical process of image formation. By inverting such renderer, one can think of a learning approach to infer 3D information from 2D images. However, standard graphics renderers involve a fundamental discretization step cal…

Cited by 820PDFcodeScholar
2018

Deep Volumetric Video From Very Sparse Multi-View Performance Capture

ECCV 2018poster

We present a deep learning-based volumetric capture approach for performance capture using a passive and highly sparse multi-view capture system. We focus on a template-free, per-frame 3D surface reconstruction from as few as three RGB sensors, where conventional visual hull or multi-view stereo met…

Cited by 144SourcePDFScholar
2018

HairNet: Single-View Hair Reconstruction using Convolutional Neural Networks

ECCV 2018poster

We introduce a deep learning-based method to generate full 3D hair geometry from an unconstrained image. Our method can recover local strand details and has real-time performance. State-of-the-art hair modeling techniques rely on large hairstyle collections for nearest neighbor retrieval and then pe…

Cited by 86SourcePDFScholar
2018

Mesoscopic Facial Geometry Inference Using Deep Neural Networks

CVPR 2018poster

We present a learning-based approach for synthesizing facial geometry at medium and fine scales from diffusely-lit facial texture maps. When applied to an image sequence, the synthesized detail is temporally coherent. Unlike current state-of-the-art methods, which assume "dark is deep", our model…

Cited by 76SourcePDFScholar