Search Results for author: Ruibo Li

Found 14 papers, 7 papers with code

Self-Supervised 3D Scene Flow Estimation and Motion Prediction using Local Rigidity Prior

no code implementations17 Oct 2023 Ruibo Li, Chi Zhang, Zhe Wang, Chunhua Shen, Guosheng Lin

By rigidly aligning each region with its potential counterpart in the target point cloud, we obtain a region-specific rigid transformation to generate its pseudo flow labels.

Motion Estimation motion prediction +2

Label-Guided Knowledge Distillation for Continual Semantic Segmentation on 2D Images and 3D Point Clouds

1 code implementation ICCV 2023 Ze Yang, Ruibo Li, Evan Ling, Chi Zhang, Yiming Wang, Dezhao Huang, Keng Teck Ma, Minhoe Hur, Guosheng Lin

To address this issue, we propose a new label-guided knowledge distillation (LGKD) loss, where the old model output is expanded and transplanted (with the guidance of the ground truth label) to form a semantically appropriate class correspondence with the new model output.

Continual Semantic Segmentation Knowledge Distillation +1

Weakly Supervised Class-Agnostic Motion Prediction for Autonomous Driving

no code implementations CVPR 2023 Ruibo Li, Hanyu Shi, Ziang Fu, Zhe Wang, Guosheng Lin

To this end, we propose a two-stage weakly supervised approach, where the segmentation model trained with the incomplete binary masks in Stage1 will facilitate the self-supervised learning of the motion prediction network in Stage2 by estimating possible moving foregrounds in advance.

Autonomous Driving motion prediction +2

Unsupervised 3D Pose Transfer with Cross Consistency and Dual Reconstruction

1 code implementation18 Nov 2022 Chaoyue Song, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

With $G$ as the basic component, we propose a cross consistency learning scheme and a dual reconstruction objective to learn the pose transfer without supervision.

Pose Transfer

Efficient Few-Shot Object Detection via Knowledge Inheritance

1 code implementation23 Mar 2022 Ze Yang, Chi Zhang, Ruibo Li, Yi Xu, Guosheng Lin

Upon this baseline, we devise an initializer named knowledge inheritance (KI) to reliably initialize the novel weights for the box classifier, which effectively facilitates the knowledge transfer process and boosts the adaptation speed.

Few-Shot Object Detection Object +2

Weakly Supervised Segmentation on Outdoor 4D Point Clouds With Temporal Matching and Spatial Graph Propagation

1 code implementation CVPR 2022 Hanyu Shi, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

We propose a novel temporal-spatial framework for effective weakly supervised learning to generate high-quality pseudo labels from these limited annotated data.

Point Cloud Segmentation Scene Understanding +2

3D Pose Transfer with Correspondence Learning and Mesh Refinement

1 code implementation NeurIPS 2021 Chaoyue Song, Jiacheng Wei, Ruibo Li, Fayao Liu, Guosheng Lin

It aims to transfer the pose of a source mesh to a target mesh and keep the identity (e. g., body shape) of the target mesh.

3D Generation Pose Transfer

Meta Navigator: Search for a Good Adaptation Policy for Few-shot Learning

no code implementations ICCV 2021 Chi Zhang, Henghui Ding, Guosheng Lin, Ruibo Li, Changhu Wang, Chunhua Shen

Inspired by the recent success in Automated Machine Learning literature (AutoML), in this paper, we present Meta Navigator, a framework that attempts to solve the aforementioned limitation in few-shot learning by seeking a higher-level strategy and proffer to automate the selection from various few-shot learning designs.

AutoML Few-Shot Learning

Deep attention-based classification network for robust depth prediction

1 code implementation11 Jul 2018 Ruibo Li, Ke Xian, Chunhua Shen, Zhiguo Cao, Hao Lu, Lingxiao Hang

However, robust depth prediction suffers from two challenging problems: a) How to extract more discriminative features for different scenes (compared to a single scene)?

Classification Deep Attention +5

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