← Search

Peizhao Zhang

19 accepted papers

2025

LinGen: Towards High-Resolution Minute-Length Text-to-Video Generation with Linear Computational Complexity

CVPR 2025poster

Text-to-video generation enhances content creation but is highly computationally intensive: The computational cost of Diffusion Transformers (DiTs) scales quadratically in the number of pixels. This makes minute-length video generation extremely expensive, limiting most existing models to generatin…

2025

Movie Weaver: Tuning-Free Multi-Concept Video Personalization with Anchored Prompts

CVPR 2025poster

Video personalization, which generates customized videos using reference images, has gained significant attention.However, prior methods typically focus on single-concept personalization, limiting broader applications that require multi-concept integration.Attempts to extend these models to multiple…

Cited by 3SourcePDFScholar
2024

Cache Me if You Can: Accelerating Diffusion Models through Block Caching

CVPR 2024poster

Diffusion models have recently revolutionized the field of image synthesis due to their ability to generate photorealistic images. However one of the major drawbacks of diffusion models is that the image generation process is costly. A large image-to-image network has to be applied many times to ite…

Cited by 51SourcePDFScholar
2024

ControlRoom3D: Room Generation using Semantic Proxy Rooms

CVPR 2024poster

Manually creating 3D environments for AR/VR applications is a complex process requiring expert knowledge in 3D modeling software. Pioneering works facilitate this process by generating room meshes conditioned on textual style descriptions. Yet many of these automatically generated 3D meshes do not a…

Cited by 31SourcePDFScholar
2024

FlowVid: Taming Imperfect Optical Flows for Consistent Video-to-Video Synthesis

CVPR 2024highlight

Diffusion models have transformed the image-to-image (I2I) synthesis and are now permeating into videos. However the advancement of video-to-video (V2V) synthesis has been hampered by the challenge of maintaining temporal consistency across video frames. This paper proposes a consistent V2V synthesi…

Cited by 41SourcePDFScholar
2023

Auto-CARD: Efficient and Robust Codec Avatar Driving for Real-Time Mobile Telepresence

CVPR 2023poster

Real-time and robust photorealistic avatars for telepresence in AR/VR have been highly desired for enabling immersive photorealistic telepresence. However, there still exists one key bottleneck: the considerable computational expense needed to accurately infer facial expressions captured from headse…

Cited by 4SourcePDFScholar
2023

Castling-ViT: Compressing Self-Attention via Switching Towards Linear-Angular Attention at Vision Transformer Inference

CVPR 2023poster

Vision Transformers (ViTs) have shown impressive performance but still require a high computation cost as compared to convolutional neural networks (CNNs), one reason is that ViTs' attention measures global similarities and thus has a quadratic complexity with the number of input tokens. Existing ef…

2023

DIME-FM : DIstilling Multimodal and Efficient Foundation Models

ICCV 2023poster

Large Vision-Language Foundation Models (VLFM), such as CLIP, ALIGN and Florence, are trained on large private datasets of image-caption pairs and achieve superior transferability and robustness on downstream tasks, but they are difficult to use in many practical applications due to their large size…

Cited by 21PDFScholar
2023

Open-Vocabulary Semantic Segmentation With Mask-Adapted CLIP

CVPR 2023poster

Open-vocabulary semantic segmentation aims to segment an image into semantic regions according to text descriptions, which may not have been seen during training. Recent two-stage methods first generate class-agnostic mask proposals and then leverage pre-trained vision-language models, e.g., CLIP, t…

2023

Token Merging: Your ViT But Faster

ICLR 2023top-5%

We introduce Token Merging (ToMe), a simple method to increase the throughput of existing ViT models without needing to train. ToMe gradually combines similar tokens in a transformer using a general and light-weight matching algorithm that is as fast as pruning while being more accurate. Off-the-she…

2022

Data Efficient Language-Supervised Zero-Shot Recognition with Optimal Transport Distillation

ICLR 2022poster

Traditional computer vision models are trained to predict a fixed set of predefined categories. Recently, natural language has been shown to be a broader and richer source of supervision that provides finer descriptions to visual concepts than supervised "gold" labels. Previous works, such as CLIP,…

2021

FBNetV3: Joint Architecture-Recipe Search Using Predictor Pretraining

CVPR 2021poster

Neural Architecture Search (NAS) yields state-of-the-art neural networks that outperform their best manually-designed counterparts. However, previous NAS methods search for architectures under one set of training hyper-parameters (i.e., a training recipe), overlooking superior architecture-recipe co…

Cited by 133PDFScholar
2021

FP-NAS: Fast Probabilistic Neural Architecture Search

CVPR 2021poster

Differential Neural Architecture Search (NAS) requires all layer choices to be held in memory simultaneously; this limits the size of both search space and final architecture. In contrast, Probabilistic NAS, such as PARSEC, learns a distribution over high-performing architectures, and uses only as m…

Cited by 30PDFScholar
2021

Unbiased Teacher for Semi-Supervised Object Detection

ICLR 2021poster

Semi-supervised learning, i.e., training networks with both labeled and unlabeled data, has made significant progress recently. However, existing works have primarily focused on image classification tasks and neglected object detection which requires more annotation effort. In this work, we revisit…

2021

Visual Transformers: Where Do Transformers Really Belong in Vision Models?

ICCV 2021poster

A recent trend in computer vision is to replace convolutions with transformers. However, the performance gain of transformers is attained at a steep cost, requiring GPU years and hundreds of millions of samples for training. This excessive resource usage compensates for a misuse of transformers: Tra…

Cited by 32PDFScholar
2020

FBNetV2: Differentiable Neural Architecture Search for Spatial and Channel Dimensions

CVPR 2020poster

Differentiable Neural Architecture Search (DNAS) has demonstrated great success in designing state-of-the-art, efficient neural networks. However, DARTS-based DNAS's search space is small when compared to other search methods', since all candidate network layers must be explicitly instantiated in me…

Cited by 383PDFcodeScholar
2020

Geometric Correspondence Fields: Learned Differentiable Rendering for 3D Pose Refinement in the Wild

ECCV 2020poster

We present a novel 3D pose refinement approach based on differentiable rendering for objects of arbitrary categories in the wild. In contrast to previous methods, we make two main contributions: First, instead of comparing real-world images and synthetic renderings in the RGB or mask space, we compa…

Cited by 10SourcePDFScholar
2019

ChamNet: Towards Efficient Network Design Through Platform-Aware Model Adaptation

CVPR 2019poster

This paper proposes an efficient neural network (NN) architecture design methodology called Chameleon that honors given resource constraints. Instead of developing new building blocks or using computationally-intensive reinforcement learning algorithms, our approach leverages existing efficient netw…

Cited by 341PDFcodeScholar
2019

FBNet: Hardware-Aware Efficient ConvNet Design via Differentiable Neural Architecture Search

CVPR 2019oral

Designing accurate and efficient ConvNets for mobile devices is challenging because the design space is combinatorially large. Due to this, previous neural architecture search (NAS) methods are computationally expensive. ConvNet architecture optimality depends on factors such as input resolution and…

Cited by 1699PDFcodeScholar