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Jiaming Sun

14 accepted papers

2025

FreeTimeGS: Free Gaussian Primitives at Anytime Anywhere for Dynamic Scene Reconstruction

CVPR 2025poster

This paper addresses the challenge of reconstructing dynamic 3D scenes with complex motions. Some recent works define 3D Gaussian primitives in the canonical space and use deformation fields to map canonical primitives to observation spaces, achieving real-time dynamic view synthesis. However, these…

Cited by 0SourcePDFScholar
2025

Prompting Depth Anything for 4K Resolution Accurate Metric Depth Estimation

CVPR 2025poster

Prompts play a critical role in unleashing the power of language and vision foundation models for specific tasks. For the first time, we introduce prompting into depth foundation models, creating a new paradigm for metric depth estimation termed Prompt Depth Anything. Specifically, we use a low-cost…

2025

ReTracker: Exploring Image Matching for Robust Online Any Point Tracking

ICCV 2025poster

This paper aims to establish correspondences for a set of 2D query points across a video sequence in an online manner. Recent methods leverage future frames to achieve smooth point tracking at the current frame, but they still struggle to find points with significant viewpoint changes after long-ter…

Cited by 0SourcePDFScholar
2024

4K4D: Real-Time 4D View Synthesis at 4K Resolution

CVPR 2024poster

This paper targets high-fidelity and real-time view synthesis of dynamic 3D scenes at 4K resolution. Recent methods on dynamic view synthesis have shown impressive rendering quality. However their speed is still limited when rendering high-resolution images. To overcome this problem we propose 4K4D…

2024

Detector-Free Structure from Motion

CVPR 2024poster

We propose a structure-from-motion framework to recover accurate camera poses and point clouds from unordered images. Traditional SfM systems typically rely on the successful detection of repeatable keypoints across multiple views as the first step which is difficult for texture-poor scenes and poor…

2024

Relightable and Animatable Neural Avatar from Sparse-View Video

CVPR 2024highlight

This paper tackles the problem of creating relightable and animatable neural avatars from sparse-view (or monocular) videos of dynamic humans under unknown illumination. Previous neural human reconstruction methods produce animatable avatars from sparse views using deformed Signed Distance Fields (S…

2022

Modeling Indirect Illumination for Inverse Rendering

CVPR 2022poster

Recent advances in implicit neural representations and differentiable rendering make it possible to simultaneously recover the geometry and materials of an object from multi-view RGB images captured under unknown static illumination. Despite the promising results achieved, indirect illumination is r…

Cited by 168PDFcodeScholar
2022

OnePose++: Keypoint-Free One-Shot Object Pose Estimation without CAD Models

NeurIPS 2022accept

We propose a new method for object pose estimation without CAD models. The previous feature-matching-based method OnePose has shown promising results under a one-shot setting which eliminates the need for CAD models or object-specific training. However, OnePose relies on detecting repeatable image k…

2022

OnePose: One-Shot Object Pose Estimation Without CAD Models

CVPR 2022poster

We propose a new method named OnePose for object pose estimation. Unlike existing instance-level or category-level methods, OnePose does not rely on CAD models and can handle objects in arbitrary categories without instance- or category-specific network training. OnePose draws the idea from visual l…

Cited by 174PDFcodeScholar
2021

LoFTR: Detector-Free Local Feature Matching With Transformers

CVPR 2021poster

We present a novel method for local image feature matching. Instead of performing image feature detection, description, and matching sequentially, we propose to first establish pixel-wise dense matches at a coarse level and later refine the good matches at a fine level. In contrast to dense methods…

Cited by 1526PDFcodeScholar
2021

NeuralRecon: Real-Time Coherent 3D Reconstruction From Monocular Video

CVPR 2021poster

We present a novel framework named NeuralRecon for real-time 3D scene reconstruction from a monocular video. Unlike previous methods that estimate single-view depth maps separately on each key-frame and fuse them later, we propose to directly reconstruct local surfaces represented as sparse TSDF vol…

Cited by 358PDFcodeScholar
2021

You Don't Only Look Once: Constructing Spatial-Temporal Memory for Integrated 3D Object Detection and Tracking

ICCV 2021poster

Humans are able to continuously detect and track surrounding objects by constructing a spatial-temporal memory of the objects when looking around. In contrast, 3D object detectors in existing tracking-by-detection systems often search for objects in every new video frame from scratch, without fully…

Cited by 13PDFcodeScholar
2020

Disp R-CNN: Stereo 3D Object Detection via Shape Prior Guided Instance Disparity Estimation

CVPR 2020poster

In this paper, we propose a novel system named Disp R-CNN for 3D object detection from stereo images. Many recent works solve this problem by first recovering a point cloud with disparity estimation and then apply a 3D detector. The disparity map is computed for the entire image, which is costly and…

Cited by 145PDFcodeScholar
2020

SMAP: Single-Shot Multi-Person Absolute 3D Pose Estimation

ECCV 2020poster

Recovering multi-person 3D poses with absolute scales from a single RGB image is a challenging problem due to the inherent depth and scale ambiguity from a single view. Addressing this ambiguity requires to aggregate various cues over the entire image, such as body sizes, scene layouts, and inter-pe…

Cited by 132SourcePDFScholar