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Luowei Zhou

16 accepted papers

2025

ADIEE: Automatic Dataset Creation and Scorer for Instruction-Guided Image Editing Evaluation

ICCV 2025poster

Recent advances in instruction-guided image editing underscore the need for effective automated evaluation. While Vision-Language Models (VLMs) have been explored as judges, open-source models struggle with alignment, and proprietary models lack transparency and cost efficiency. Additionally, no pub…

2024

AssistGUI: Task-Oriented PC Graphical User Interface Automation

CVPR 2024poster

Graphical User Interface (GUI) automation holds significant promise for assisting users with complex tasks thereby boosting human productivity. Existing works leveraging Large Language Model (LLM) or LLM-based AI agents have shown capabilities in automating tasks on Android and Web platforms. Howeve…

Cited by 7SourcePDFScholar
2023

MIST: Multi-Modal Iterative Spatial-Temporal Transformer for Long-Form Video Question Answering

CVPR 2023poster

To build Video Question Answering (VideoQA) systems capable of assisting humans in daily activities, seeking answers from long-form videos with diverse and complex events is a must. Existing multi-modal VQA models achieve promising performance on images or short video clips, especially with the rece…

2022

BEVT: BERT Pretraining of Video Transformers

CVPR 2022poster

This paper studies the BERT pretraining of video transformers. It is a straightforward but worth-studying extension given the recent success from BERT pretraining of image transformers. We introduce BEVT which decouples video representation learning into spatial representation learning and temporal…

Cited by 282PDFcodeScholar
2022

CLIP-Event: Connecting Text and Images With Event Structures

CVPR 2022oral

Vision-language (V+L) pretraining models have achieved great success in supporting multimedia applications by understanding the alignments between images and text. While existing vision-language pretraining models primarily focus on understanding objects in images or entities in text, they often ign…

Cited by 151PDFcodeScholar
2022

DNA: Improving Few-Shot Transfer Learning with Low-Rank Decomposition and Alignment

ECCV 2022poster

"Self-supervised (SS) learning has achieved remarkable success in learning strong representation for in-domain few-shot and semi-supervised tasks. However, when transferring such representations to downstream tasks with domain shifts, the performance degrades compared to its supervised counterpart,…

2022

Language Models with Image Descriptors are Strong Few-Shot Video-Language Learners

NeurIPS 2022accept

The goal of this work is to build flexible video-language models that can generalize to various video-to-text tasks from few examples. Existing few-shot video-language learners focus exclusively on the encoder, resulting in the absence of a video-to-text decoder to handle generative tasks. Video cap…

2022

Learning Visual Representation from Modality-Shared Contrastive Language-Image Pre-training

ECCV 2022poster

"Large-scale multi-modal contrastive pre-training has demonstrated great utility to learn transferable features for a range of downstream tasks by mapping multiple modalities into a shared embedding space. Typically, this has employed separate encoders for each modality. However, recent work suggest…

2022

OmniVL: One Foundation Model for Image-Language and Video-Language Tasks

NeurIPS 2022accept

This paper presents OmniVL, a new foundation model to support both image-language and video-language tasks using one universal architecture. It adopts a unified transformer-based visual encoder for both image and video inputs, and thus can perform joint image-language and video-language pretraining.…

Cited by 165SourcePDFScholar
2022

RegionCLIP: Region-Based Language-Image Pretraining

CVPR 2022poster

Contrastive language-image pretraining (CLIP) using image-text pairs has achieved impressive results on image classification in both zero-shot and transfer learning settings. However, we show that directly applying such models to recognize image regions for object detection leads to unsatisfactory p…

Cited by 648PDFcodeScholar
2022

Visual Clues: Bridging Vision and Language Foundations for Image Paragraph Captioning

NeurIPS 2022accept

People say, "A picture is worth a thousand words". Then how can we get the rich information out of the image? We argue that by using visual clues to bridge large pretrained vision foundation models and language models, we can do so without any extra cross-modal training. Thanks to the strong zero-sh…

Cited by 28SourcePDFScholar
2021

Less Is More: ClipBERT for Video-and-Language Learning via Sparse Sampling

CVPR 2021poster

The canonical approach to video-and-language learning (e.g., video question answering) dictates a neural model to learn from offline-extracted dense video features from vision models and text features from language models. These feature extractors are trained independently and usually on tasks diffe…

Cited by 771PDFcodeScholar
2021

UC2: Universal Cross-Lingual Cross-Modal Vision-and-Language Pre-Training

CVPR 2021poster

Vision-and-language pre-training has achieved impressive success in learning multimodal representations between vision and language. To generalize this success to non-English languages, we introduce UC^2, the first machine translation-augmented framework for cross-lingual cross-modal representation…

Cited by 101PDFScholar
2021

VALUE: A Multi-Task Benchmark for Video-and-Language Understanding Evaluation

NeurIPS 2021poster

Most existing video-and-language (VidL) research focuses on a single dataset, or multiple datasets of a single task. In reality, a truly useful VidL system is expected to be easily generalizable to diverse tasks, domains, and datasets. To facilitate the evaluation of such systems, we introduce Video…

Cited by 123SourcecodeScholar
2018

End-to-End Dense Video Captioning With Masked Transformer

CVPR 2018poster

Dense video captioning aims to generate text descriptions for all events in an untrimmed video. This involves both detecting and describing events. Therefore, all previous methods on dense video captioning tackle this problem by building two models, i.e. an event proposal and a captioning model, for…

Cited by 728SourcePDFScholar