← Search

Zhizhong Zhang

39 accepted papers

2026

DR-MMSearchAgent: Deepening Reasoning in Multimodal Search Agents

ICML 2026poster

Agentic multimodal models have garnered significant attention for their ability to leverage external tools to tackle complex tasks. However, it is observed that such agents often meet premature interaction collapse, caused by two primary reasons: 1) the terminal reward often appending on the last to…

Cited by 0SourceScholar
2026

Diffusion Implicit Policy for Unpaired Scene-aware Motion Synthesis

AAAI 2026technical

Scene-aware motion synthesis has been widely researched recently due to its numerous applications. Prevailing methods rely heavily on paired motion-scene data, while it is difficult to generalize to diverse scenes when trained only on a few specific ones. Thus, we propose a unified framework, termed

Cited by 0SourcePDFScholar
2026

Human Motion Synthesis in 3D Scenes via Unified Scene Semantic Occupancy

AAAI 2026technical

Human motion synthesis in 3D scenes relies heavily on scene comprehension, while current methods focus mainly on scene structure but ignore the semantic understanding. In this paper, we propose a human motion synthesis framework that take an unified Scene Semantic Occupancy (SSO) for scene represent

Cited by 0SourcePDFScholar
2026

Multi-Step Deformable Gaussian Splatting for Dynamic Scene Rendering

AAAI 2026technical

Reconstructing dynamic scenes has long been a challenging task in 3D vision. Previous mainstream methods based on 3D Gaussian Splatting typically employ a single deformation field to directly model spatiotemporal changes. However, such one-step deformation struggles to capture diverse and complex mo

Cited by 0SourcePDFScholar
2026

PCLR: Progressively Compressed LoRA for Multimodal Continual Instruction Tuning

ICLR 2026poster

Continual Instruction Tuning (CIT) enables Large Multimodal Models (LMMs) to rapidly adapt to new tasks without retraining, but it suffers from the catastrophic forgetting problem. By adding new branches, model extension provides a great idea to accommodate novel knowledge while causing huge memory…

Cited by 0SourcecodeScholar
2026

S2GS: Streaming Semantic Gaussian Splatting for Online Scene Understanding and Reconstruction

ICML 2026poster

Existing offline feed-forward methods for joint scene understanding and reconstruction on long image streams often repeatedly perform global computation over an ever-growing set of past observations, causing runtime and GPU memory to increase rapidly with sequence length and limiting scalability. We…

Cited by 0SourceScholar
2026

Zero-Shot Robotic Manipulation via 3D Gaussian Splatting-Enhanced Multimodal Retrieval-Augmented Generation

AAAI 2026technical

Existing end-to-end approaches of robotic manipulation often lack generalization to unseen objects or tasks due to limited data and poor interpretability. While recent Multimodal Large Language Models (MLLMs) demonstrate strong commonsense reasoning, they struggle with geometric and spatial understa

Cited by 0SourcePDFScholar
2025

Efficient Prototypical Classifier for Class-Incremental Learning

ICASSP 2025accepted

The nearest prototypical classifier faces challenges of semantic drift and prototype interference. Previous methods address these issues using data rehearsal and contrastive learning, but these approaches incur high memory costs and slow convergence. In this paper, we propose a novel prototypical mi…

Cited by 0SourceScholar
2025

FastLGS: Speeding Up Language Embedded Gaussians with Feature Grid Mapping

AAAI 2025technical

The semantically interactive radiance field has always been an appealing task for its potential to facilitate user-friendly and automated real-world 3D scene understanding applications. However, it is a challenging task to achieve high quality, efficiency and zero-shot ability at the same time with…

Cited by 7SourcePDFScholar
2025

From Enhancement to Understanding: Build a Generalized Bridge for Low-light Vision via Semantically Consistent Unsupervised Fine-tuning

ICCV 2025poster

Low-level enhancement and high-level visual understanding in low-light vision have traditionally been treated separately. Low-light enhancement improves image quality for downstream tasks, but existing methods rely on physical or geometric priors, limiting generalization. Evaluation mainly focuses o…

Cited by 0SourcePDFScholar
2025

Large Continual Instruction Assistant

ICML 2025poster

Continual Instruction Tuning (CIT) is adopted to continually instruct Large Models to follow human intent data by data. It is observed that existing gradient update would heavily destroy the performance on previous datasets during CIT process. Instead, Exponential Moving Average (EMA), owns the abil…

2025

Multi-Schema Proximity Network for Composed Image Retrieval

ICCV 2025poster

Composed Image Retrieval (CIR) aims to retrieve a target image using a query that combines a reference image and a textual description, benefiting users to express their intent more effectively. Despite significant advances in CIR methods, two unresolved problems remain: 1) existing methods overlook…

Cited by 0SourcePDFScholar
2025

One-for-More: Continual Diffusion Model for Anomaly Detection

CVPR 2025poster

With the rise of generative models, there is a growing interest in unifying all tasks within a generative framework. Anomaly detection methods also fall into this scope and utilize diffusion models to generate or reconstruct normal samples when given arbitrary anomaly images. However, our study foun…

2025

Stylized-Face: A Million-level Stylized Face Dataset for Face Recognition

ICCV 2025poster

Stylized face recognition is the task of recognizing generated faces with the same ID across diverse stylistic domains (e.g., anime, painting, cyberpunk styles). This emerging field plays a vital role in the governance of generative image, serving the primary objective: Recognize the ID information…

2025

Switchable Token-Specific Codebook Quantization For Face Image Compression

NeurIPS 2025poster

With the ever-increasing volume of visual data, the efficient and lossless transmission, along with its subsequent interpretation and understanding, has become a critical bottleneck in modern information systems. The emerged codebook-based solution utilize a globally shared codebook to quantize and…

Cited by 0SourceScholar
2024

Beyond the Label Itself: Latent Labels Enhance Semi-supervised Point Cloud Panoptic Segmentation

AAAI 2024technical

As the exorbitant expense of labeling autopilot datasets and the growing trend of utilizing unlabeled data, semi-supervised segmentation on point clouds becomes increasingly imperative. Intuitively, finding out more ``unspoken words'' (i.e., latent instance information) beyond the label itself shoul…

Cited by 5SourcePDFScholar
2024

Building a Strong Pre-Training Baseline for Universal 3D Large-Scale Perception

CVPR 2024poster

An effective pre-training framework with universal 3D representations is extremely desired in perceiving large-scale dynamic scenes. However establishing such an ideal framework that is both task-generic and label-efficient poses a challenge in unifying the representation of the same primitive acros…

2024

COTR: Compact Occupancy TRansformer for Vision-based 3D Occupancy Prediction

CVPR 2024poster

The autonomous driving community has shown significant interest in 3D occupancy prediction driven by its exceptional geometric perception and general object recognition capabilities. To achieve this current works try to construct a Tri-Perspective View (TPV) or Occupancy (OCC) representation extendi…

2024

Harmonizing Visual Text Comprehension and Generation

NeurIPS 2024poster

In this work, we present TextHarmony, a unified and versatile multimodal generative model proficient in comprehending and generating visual text. Simultaneously generating images and texts typically results in performance degradation due to the inherent inconsistency between vision and language moda…

2024

Learning Commonality, Divergence and Variety for Unsupervised Visible-Infrared Person Re-identification

NeurIPS 2024poster

Unsupervised visible-infrared person re-identification (USVI-ReID) aims to match specified persons in infrared images to visible images without annotations, and vice versa. USVI-ReID is a challenging yet underexplored task. Most existing methods address the USVI-ReID through cluster-based contrastiv…

2024

Learning Task-Aware Language-Image Representation for Class-Incremental Object Detection

AAAI 2024technical

Class-incremental object detection (CIOD) is a real-world desired capability, requiring an object detector to continuously adapt to new tasks without forgetting learned ones, with the main challenge being catastrophic forgetting. Many methods based on distillation and replay have been proposed to al…

Cited by 5SourcePDFScholar
2024

Multi-Memory Matching for Unsupervised Visible-Infrared Person Re-Identification

ECCV 2024poster

"Unsupervised visible-infrared person re-identification (USL-VI-ReID) is a promising yet highly challenging retrieval task. The key challenges in USL-VI-ReID are to accurately generate pseudo-labels and establish pseudo-label correspondences across modalities without relying on any prior annotations…

2024

Prompt Gradient Projection for Continual Learning

ICLR 2024spotlight

Prompt-tuning has demonstrated impressive performance in continual learning by querying relevant prompts for each input instance, which can avoid the introduction of task identifier. Its forgetting is therefore reduced as this instance-wise query mechanism enables us to select and update only releva…

2024

PromptAD: Learning Prompts with only Normal Samples for Few-Shot Anomaly Detection

CVPR 2024poster

The vision-language model has brought great improvement to few-shot industrial anomaly detection which usually needs to design of hundreds of prompts through prompt engineering. For automated scenarios we first use conventional prompt learning with many-class paradigm as the baseline to automaticall…

2023

Dual Pseudo-Labels Interactive Self-Training for Semi-Supervised Visible-Infrared Person Re-Identification

ICCV 2023poster

Visible-infrared person re-identification (VI-ReID) aims to match a specific person from a gallery of images captured from non-overlapping visible and infrared cameras. Most works focus on fully supervised VI-ReID, which requires substantial cross-modality annotation that is more expensive than the…

Cited by 42PDFcodeScholar
2023

High-Resolution GAN Inversion for Degraded Images in Large Diverse Datasets

AAAI 2023technical

The last decades are marked by massive and diverse image data, which shows increasingly high resolution and quality. However, some images we obtained may be corrupted, affecting the perception and the application of downstream tasks. A generic method for generating a high-quality image from the degr…

2023

Instance and Category Supervision are Alternate Learners for Continual Learning

ICCV 2023poster

Continual Learning (CL) is the constant development of complex behaviors by building upon previously acquired skills. Yet, current CL algorithms tend to incur class-level forgetting as the label information is often quickly overwritten by new knowledge. This motivates attempts to mine instance-level…

Cited by 2PDFScholar
2023

LiDAR-Camera Panoptic Segmentation via Geometry-Consistent and Semantic-Aware Alignment

ICCV 2023poster

3D panoptic segmentation is a challenging perception task that requires both semantic segmentation and instance segmentation. In this task, we notice that images could provide rich texture, color, and discriminative information, which can complement LiDAR data for evident performance improvement, bu…

Cited by 21PDFcodeScholar
2023

Multi-Centroid Task Descriptor for Dynamic Class Incremental Inference

CVPR 2023poster

Incremental learning could be roughly divided into two categories, i.e., class- and task-incremental learning. The main difference is whether the task ID is given during evaluation. In this paper, we show this task information is indeed a strong prior knowledge, which will bring significant improvem…

Cited by 5SourcePDFScholar
2023

Rethinking Gradient Projection Continual Learning: Stability / Plasticity Feature Space Decoupling

CVPR 2023poster

Continual learning aims to incrementally learn novel classes over time, while not forgetting the learned knowledge. Recent studies have found that learning would not forget if the updated gradient is orthogonal to the feature space. However, previous approaches require the gradient to be fully ortho…

Cited by 29SourcePDFScholar
2022

Mutually Reinforcing Structure with Proposal Contrastive Consistency for Few-Shot Object Detection

ECCV 2022poster

"Few-shot object detection is based on the base set with abundant labeled samples to detect novel categories with scarce samples. The majority of former solutions are mainly based on meta-learning or transfer-learning, neglecting the fact that images from the base set might contain unlabeled novel-c…

2022

Optimal Transport for Label-Efficient Visible-Infrared Person Re-identification

ECCV 2022poster

"Visible-infrared person re-identification (VI-ReID) has been a key enabler for night intelligent monitoring system. However, the extensive laboring efforts significantly limit its applications. In this paper, we raise a new label-efficient training pipeline for VI-ReID. Our observation is: RGB ReID…

2022

Optimization over Disentangled Encoding: Unsupervised Cross-Domain Point Cloud Completion via Occlusion Factor Manipulation

ECCV 2022poster

"Recently, studies considering domain gaps in shape completion attracted more attention, due to the undesirable performance of supervised methods on real scans. They only noticed the gap in input scans, but ignored the gap in output prediction, which is specific for completion. In this paper, we dis…

2022

Task-Level Self-Supervision for Cross-Domain Few-Shot Learning

AAAI 2022technical

Learning with limited labeled data is a long-standing problem. Among various solutions, episodic training progres-sively classifies a series of few-shot tasks and thereby is as-sumed to be beneficial for improving the model’s generalization ability. However, recent studies show that it is eveninferi…

Cited by 16SourcePDFScholar
2021

Contrastive Learning for Compact Single Image Dehazing

CVPR 2021poster

Single image dehazing is a challenging ill-posed problem due to the severe information degeneration. However, existing deep learning based dehazing methods only adopt clear images as positive samples to guide the training of dehazing network while negative information is unexploited. Moreover, most…

Cited by 876PDFcodeScholar
2021

Farewell to Mutual Information: Variational Distillation for Cross-Modal Person Re-Identification

CVPR 2021poster

The Information Bottleneck (IB) provides an information theoretic principle for representation learning, by retaining all information relevant for predicting label while minimizing the redundancy. Though IB principle has been applied to a wide range of applications, its optimization remains a challe…

Cited by 165PDFcodeScholar
2021

Learn from Concepts: Towards the Purified Memory for Few-shot Learning

IJCAI 2021poster

Human beings have a great generalization ability to recognize a novel category by only seeing a few number of samples. This is because humans possess the ability to learn from the concepts that already exist in our minds. However, many existing few-shot approaches fail in addressing such a fundament…

Cited by 12SourcePDFScholar
2021

Towards Compact Single Image Super-Resolution via Contrastive Self-distillation

IJCAI 2021poster

Convolutional neural networks (CNNs) are highly successful for super-resolution (SR) but often require sophisticated architectures with heavy memory cost and computational overhead significantly restricts their practical deployments on resource-limited devices. In this paper, we proposed a novel con…