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Ruimao Zhang

46 accepted papers

2026

Seeing Motion, Generating Action: Explicit Motion-Aware Policy for Robotic Action Generation

ICRA 2026poster

Imitation learning (IL) offers a scalable framework for teaching robots complex manipulation skills from human demonstrations. However, conventional end-to-end visuomotor IL models often suffer from poor performance and robustness due to the significant modality mismatch between high-dimensional vis…

Cited by 0Scholar
2026

TouchGuide: Inference-Time Steering of Visuomotor Policies via Touch Guidance

RSS 2026poster

Fine-grained and contact-rich manipulation remain challenging for robots, largely due to the underutilization of tactile feedback. To address this, we introduce TouchGuide, a novel cross-policy visuo-tactile fusion paradigm that fuses modalities within a low-dimensional action space. Specifically, T…

Cited by 0SourceScholar
2025

CDP: Towards Robust Autoregressive Visuomotor Policy Learning via Causal Diffusion

CoRL 2025poster

Diffusion Policy (DP) enables robots to learn complex behaviors by imitating expert demonstrations through action diffusion. However, in practical applications, hardware limitations often degrade data quality, while real-time constraints restrict model inference to instantaneous state and scene obse…

Cited by 0SourceScholar
2025

Chain-of-Imagination for Reliable Instruction Following in Decision Making

IROS 2025

Enabling the embodied agent to imagine step-by-step the future states and sequentially approach these situation-aware states can enhance its capability to make reliable action decisions from textual instructions. In this work, we introduce a simple but effective mechanism called Chain-of-Imagination

Cited by 0SourceScholar
2025

DriveGEN: Generalized and Robust 3D Detection in Driving via Controllable Text-to-Image Diffusion Generation

CVPR 2025poster

In autonomous driving, vision-centric 3D detection aims to identify 3D objects from images. However, high data collection costs and diverse real-world scenarios limit the scale of training data. Once distribution shifts occur between training and test data, existing methods often suffer from perform…

2025

Ensuring Force Safety in Vision-Guided Robotic Manipulation via Implicit Tactile Calibration

CoRL 2025poster

In unstructured environments, robotic manipulation tasks involving objects with constrained motion trajectories—such as door opening—often experience discrepancies between the robot's vision-guided end-effector trajectory and the object's constrained motion path. Such discrepancies generate uninten…

Cited by 0SourceScholar
2025

High-Dynamic Radar Sequence Prediction for Weather Nowcasting Using Spatiotemporal Coherent Gaussian Representation

ICLR 2025oral

Weather nowcasting is an essential task that involves predicting future radar echo sequences based on current observations, offering significant benefits for disaster management, transportation, and urban planning. Current prediction methods are limited by training and storage efficiency, mainly foc…

Cited by 0SourcePDFScholar
2025

NavigateDiff: Visual Predictors are Zero-Shot Navigation Assistants

ICRA 2025

Navigating unfamiliar environments presents significant challenges for household robots, requiring the ability to recognize and reason about novel decoration and layout. Existing reinforcement learning methods cannot be directly transferred to new environments, as they typically rely on extensive ma

Cited by 11SourcecodeScholar
2025

Reinventing Multi-Agent Collaboration through Gaussian-Image Synergy in Diffusion Policies

NeurIPS 2025poster

Despite significant advances in robotic policy generation, effective coordination in embodied multi-agent systems remains a fundamental challenge—particularly in scenarios where agents must balance individual perspectives with global environmental awareness. Existing approaches often struggle to bal…

Cited by 0SourceScholar
2025

ScaMo: Exploring the Scaling Law in Autoregressive Motion Generation Model

CVPR 2025poster

The scaling law has been validated in various domains, such as natural language processing (NLP) and massive computer vision tasks; however, its application to motion generation remains largely unexplored. In this paper, we introduce a scalable motion generation framework that includes the motion to…

Cited by 6SourcePDFScholar
2025

Semantic-Supervised Spatial-Temporal Fusion for LiDAR-Based 3D Object Detection

ICRA 2025

LiDAR-based 3D object detection presents significant challenges due to the inherent sparsity of LiDAR points. A common solution involves long-term temporal LiDAR data to densify the inputs. However, efficiently leveraging spatial-temporal information remains an open problem. In this paper, we propos

Cited by 1SourceScholar
2025

WorldSimBench: Towards Video Generation Models as World Simulators

ICML 2025poster

Recent advancements in predictive models have demonstrated exceptional capabilities in predicting the future state of objects and scenes. However, the lack of categorization based on inherent characteristics continues to hinder the progress of predictive model development. Additionally, existing ben…

Cited by 18SourcePDFScholar
2024

Enhancing Human-AI Collaboration Through Logic-Guided Reasoning

ICLR 2024poster

We present a systematic framework designed to enhance human-robot perception and collaboration through the integration of logical rules and Theory of Mind (ToM). Logical rules provide interpretable predictions and generalize well across diverse tasks, making them valuable for learning and decision-m…

Cited by 5SourcePDFScholar
2024

FreeMan: Towards Benchmarking 3D Human Pose Estimation under Real-World Conditions

CVPR 2024poster

Estimating the 3D structure of the human body from nat- ural scenes is a fundamental aspect of visual perception. 3D human pose estimation is a vital step in advancing fields like AIGC and human-robot interaction serving as a crucial tech- nique for understanding and interacting with human actions i…

2024

HumanTOMATO: Text-aligned Whole-body Motion Generation

ICML 2024poster

This work targets a novel text-driven **whole-body** motion generation task, which takes a given textual description as input and aims at generating high-quality, diverse, and coherent facial expressions, hand gestures, and body motions simultaneously. Previous works on text-driven motion generation…

2024

KptLLM: Unveiling the Power of Large Language Model for Keypoint Comprehension

NeurIPS 2024poster

Recent advancements in Multimodal Large Language Models (MLLMs) have greatly improved their abilities in image understanding. However, these models often struggle with grasping pixel-level semantic details, e.g., the keypoints of an object. To bridge this gap, we introduce the novel challenge of Sem…

Cited by 1SourcePDFScholar
2024

MP5: A Multi-modal Open-ended Embodied System in Minecraft via Active Perception

CVPR 2024poster

It is a long-lasting goal to design an embodied system that can solve long-horizon open-world tasks in human-like ways. However existing approaches usually struggle with compound difficulties caused by the logic-aware decomposition and context-aware execution of these tasks. To this end we introduce…

Cited by 32SourcePDFScholar
2024

Open-World Human-Object Interaction Detection via Multi-modal Prompts

CVPR 2024poster

In this paper we develop MP-HOI a powerful Multi-modal Prompt-based HOI detector designed to leverage both textual descriptions for open-set generalization and visual exemplars for handling high ambiguity in descriptions realizing HOI detection in the open world. Specifically it integrates visual pr…

2024

SEED-Bench: Benchmarking Multimodal Large Language Models

CVPR 2024poster

Multimodal large language models (MLLMs) building upon the foundation of powerful large language models (LLMs) have recently demonstrated exceptional capabilities in generating not only texts but also images given interleaved multimodal inputs (acting like a combination of GPT-4V and DALL-E 3). Howe…

2024

SmartEdit: Exploring Complex Instruction-based Image Editing with Multimodal Large Language Models

CVPR 2024highlight

Current instruction-based image editing methods such as InstructPix2Pix often fail to produce satisfactory results in complex scenarios due to their dependence on the simple CLIP text encoder in diffusion models. To rectify this this paper introduces SmartEdit a novel approach of instruction-based i…

2024

Toward Accurate Camera-based 3D Object Detection via Cascade Depth Estimation and Calibration

ICRA 2024poster

Recent camera-based 3D object detection is limited by the precision of transforming from image to 3D feature spaces, as well as the accuracy of object localization within the 3D space. This paper aims to address such a fundamental problem of camera-based 3D object detection: How to effectively learn…

Cited by 2SourceScholar
2024

X4D-SceneFormer: Enhanced Scene Understanding on 4D Point Cloud Videos through Cross-Modal Knowledge Transfer

AAAI 2024technical

The field of 4D point cloud understanding is rapidly developing with the goal of analyzing dynamic 3D point cloud sequences. However, it remains a challenging task due to the sparsity and lack of texture in point clouds. Moreover, the irregularity of point cloud poses a difficulty in aligning tempo…

2023

Discovering Intrinsic Spatial-Temporal Logic Rules to Explain Human Actions

NeurIPS 2023poster

We propose an interpretable model to uncover the behavioral patterns of human movements by analyzing their trajectories. Our approach is based on the belief that human actions are driven by intentions and are influenced by environmental factors such as spatial relationships with surrounding objects.…

Cited by 7SourcePDFScholar
2023

Explicit Box Detection Unifies End-to-End Multi-Person Pose Estimation

ICLR 2023poster

This paper presents a novel end-to-end framework with Explicit box Detection for multi-person Pose estimation, called ED-Pose, where it unifies the contextual learning between human-level (global) and keypoint-level (local) information. Different from previous one-stage methods, ED-Pose re-considers…

2023

Semantic Human Parsing via Scalable Semantic Transfer Over Multiple Label Domains

CVPR 2023poster

This paper presents Scalable Semantic Transfer (SST), a novel training paradigm, to explore how to leverage the mutual benefits of the data from different label domains (i.e. various levels of label granularity) to train a powerful human parsing network. In practice, two common application scenarios…

2023

SupFusion: Supervised LiDAR-Camera Fusion for 3D Object Detection

ICCV 2023poster

LiDAR-Camera fusion-based 3D detection is a critical task for automatic driving. In recent years, many LiDAR-Camera fusion approaches sprung up and gained promising performances compared with single-modal detectors, but always lack carefully designed and effective supervision for the fusion process.…

Cited by 19PDFcodeScholar
2022

2DPASS: 2D Priors Assisted Semantic Segmentation on LiDAR Point Clouds

ECCV 2022poster

"As camera and LiDAR sensors capture complementary information used in autonomous driving, great efforts have been made to develop semantic segmentation algorithms through multi-modality data fusion. However, fusion-based approaches require paired data, i.e., LiDAR point clouds and camera images wit…

2022

AMOS: A Large-Scale Abdominal Multi-Organ Benchmark for Versatile Medical Image Segmentation

NeurIPS 2022accept

Despite the considerable progress in automatic abdominal multi-organ segmentation from CT/MRI scans in recent years, a comprehensive evaluation of the models' capabilities is hampered by the lack of a large-scale benchmark from diverse clinical scenarios. Constraint by the high cost of collecting an…

2022

Let Images Give You More: Point Cloud Cross-Modal Training for Shape Analysis

NeurIPS 2022accept

Although recent point cloud analysis achieves impressive progress, the paradigm of representation learning from single modality gradually meets its bottleneck. In this work, we take a step towards more discriminative 3D point cloud representation using 2D images, which inherently contain richer appe…

2022

Weakly Supervised Object Localization via Transformer with Implicit Spatial Calibration

ECCV 2022poster

"Weakly Supervised Object Localization (WSOL), which aims to localize objects by only using image-level labels, has attracted much attention because of its low annotation cost in real applications. Recent studies leverage the advantage of self-attention in visual Transformer for long-range dependenc…

2021

End-to-End Dense Video Captioning With Parallel Decoding

ICCV 2021poster

Dense video captioning aims to generate multiple associated captions with their temporal locations from the video. Previous methods follow a sophisticated "localize-then-describe" scheme, which heavily relies on numerous hand-crafted components. In this paper, we proposed a simple yet effective fram…

Cited by 238PDFcodeScholar
2021

InstanceRefer: Cooperative Holistic Understanding for Visual Grounding on Point Clouds Through Instance Multi-Level Contextual Referring

ICCV 2021poster

Compared with the visual grounding on 2D images, the natural-language-guided 3D object localization on point clouds is more challenging. In this paper, we propose a new model, named InstanceRefer, to achieve a superior 3D visual grounding through the grounding-by-matching strategy. In practice, our…

Cited by 147PDFcodeScholar
2021

Parser-Free Virtual Try-On via Distilling Appearance Flows

CVPR 2021poster

Image virtual try-on aims to fit a garment image (target clothes) to a person image. Prior methods are heavily based on human parsing. However, slightly-wrong segmentation results would lead to unrealistic try-on images with large artifacts. Inaccurate parsing misleads parser-based methods to produc…

Cited by 241PDFcodeScholar
2021

PointLIE: Locally Invertible Embedding for Point Cloud Sampling and Recovery

IJCAI 2021poster

Point Cloud Sampling and Recovery (PCSR) is critical for massive real-time point cloud collection and processing since raw data usually requires large storage and computation. This paper addresses a fundamental problem in PCSR: How to downsample the dense point cloud with arbitrary scales while pres…

2021

Sparse Single Sweep LiDAR Point Cloud Segmentation via Learning Contextual Shape Priors from Scene Completion

AAAI 2021technical

LiDAR point cloud analysis is a core task for 3D computer vision, especially for autonomous driving. However, due to the severe sparsity and noise interference in the single sweep LiDAR point cloud, the accurate semantic segmentation is non-trivial to achieve. In this paper, we propose a novel spars…

2020

Towards Content-Independent Multi-Reference Super-Resolution: Adaptive Pattern Matching and Feature Aggregation

ECCV 2020poster

Recovering realistic textures from a largely down-sampled low resolution (LR) image with complicated patterns is a challenging problem in image super-resolution. This work investigates a novel multi-reference based super-resolution problem by proposing a Content Independent Multi-Reference Super-Res…

Cited by 34SourcePDFScholar
2020

Towards Photo-Realistic Virtual Try-On by Adaptively Generating-Preserving Image Content

CVPR 2020poster

Image visual try-on aims at transferring a target clothes image onto a reference person, and has become a hot topic in recent years. Prior arts usually focus on preserving the character of a clothes image (e.g. texture, logo, embroidery) when warping it to arbitrary human pose. However, it remains a…

Cited by 337PDFScholar
2019

DeepFashion2: A Versatile Benchmark for Detection, Pose Estimation, Segmentation and Re-Identification of Clothing Images

CVPR 2019poster

Understanding fashion images has been advanced by benchmarks with rich annotations such as DeepFashion, whose labels include clothing categories, landmarks, and consumer-commercial image pairs. However, DeepFashion has nonnegligible issues such as single clothing-item per image, sparse landmarks (4…

Cited by 516PDFcodeScholar
2019

Differentiable Learning-to-Group Channels via Groupable Convolutional Neural Networks

ICCV 2019poster

Group convolution, which divides the channels of ConvNets into groups, has achieved impressive improvement over the regular convolution operation. However, existing models, e.g. ResNext, still suffers from the sub-optimal performance due to manually defining the number of groups as a constant over a…

Cited by 49PDFScholar
2019

Differentiable Learning-to-Normalize via Switchable Normalization

ICLR 2019poster

We address a learning-to-normalize problem by proposing Switchable Normalization (SN), which learns to select different normalizers for different normalization layers of a deep neural network. SN employs three distinct scopes to compute statistics (means and variances) including a channel, a layer,…

Cited by 262SourcePDFScholar
2019

Once a MAN: Towards Multi-Target Attack via Learning Multi-Target Adversarial Network Once

ICCV 2019poster

Modern deep neural networks are often vulnerable to adversarial samples. Based on the first optimization-based attacking method, many following methods are proposed to improve the attacking performance and speed. Recently, generation-based methods have received much attention since they directly use…

Cited by 40PDFScholar
2019

SSN: Learning Sparse Switchable Normalization via SparsestMax

CVPR 2019poster

Normalization methods improve both optimization and generalization of ConvNets. To further boost performance, the recently-proposed switchable normalization (SN) provides a new perspective for deep learning: it learns to select different normalizers for different convolution layers of a ConvNet. How…

Cited by 71PDFcodeScholar
2016

Deep Structured Scene Parsing by Learning With Image Descriptions

CVPR 2016oral

This paper addresses the problem of structured scene parsing, i.e., parsing the input scene into a configuration including hierarchical semantic objects with their interaction relations. We propose a deep architecture consisting of two networks: i) a convolutional neural network (CNN) extracting the…

Cited by 40PDFScholar