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As emerging hardware begins to support mixed bit-width arithmetic computation, mixed-precision quantization is widely used to reduce the complexity of neural networks. However, Vision Transformers (ViTs) require complex self-attention…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Junrui Xiao , Zhikai Li , Lianwei Yang , Qingyi Gu

Masked image modeling (MIM) has been recognized as a strong self-supervised pre-training approach in the vision domain. However, the mechanism and properties of the learned representations by such a scheme, as well as how to further enhance…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Kevin Zhang , Zhiqiang Shen

Recently, semantic segmentation models trained with image-level text supervision have shown promising results in challenging open-world scenarios. However, these models still face difficulties in learning fine-grained semantic alignment at…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Kaixin Cai , Pengzhen Ren , Yi Zhu , Hang Xu , Jianzhuang Liu , Changlin Li , Guangrun Wang , Xiaodan Liang

Traditional transformer-based semantic segmentation relies on quantized embeddings. However, our analysis reveals that autoencoder accuracy on segmentation mask using quantized embeddings (e.g. VQ-VAE) is 8% lower than continuous-valued…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Masud Ahmed , Zahid Hasan , Syed Arefinul Haque , Abu Zaher Md Faridee , Sanjay Purushotham , Suya You , Nirmalya Roy

The low-level details and high-level semantics are both essential to the semantic segmentation task. However, to speed up the model inference, current approaches almost always sacrifice the low-level details, which leads to a considerable…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Changqian Yu , Changxin Gao , Jingbo Wang , Gang Yu , Chunhua Shen , Nong Sang

The remarkable performance of large multimodal models (LMMs) has attracted significant interest from the image segmentation community. To align with the next-token-prediction paradigm, current LMM-driven segmentation methods either use…

计算机视觉与模式识别 · 计算机科学 2025-07-17 Tao Wang , Changxu Cheng , Lingfeng Wang , Senda Chen , Wuyue Zhao

We propose Pixel-BERT to align image pixels with text by deep multi-modal transformers that jointly learn visual and language embedding in a unified end-to-end framework. We aim to build a more accurate and thorough connection between image…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Zhicheng Huang , Zhaoyang Zeng , Bei Liu , Dongmei Fu , Jianlong Fu

Predicting masked from visible parts of an image is a powerful self-supervised approach for visual representation learning. However, the common practice of masking random patches of pixels exhibits certain failure modes, which can prevent…

机器学习 · 计算机科学 2025-02-12 Alice Bizeul , Thomas Sutter , Alain Ryser , Bernhard Schölkopf , Julius von Kügelgen , Julia E. Vogt

Masked Autoencoders is a simple yet powerful self-supervised learning method. However, it learns representations indirectly by reconstructing masked input patches. Several methods learn representations directly by predicting representations…

音频与语音处理 · 电气工程与系统科学 2023-03-03 Daisuke Niizumi , Daiki Takeuchi , Yasunori Ohishi , Noboru Harada , Kunio Kashino

Recent self-supervised learning (SSL) methods have shown impressive results in learning visual representations from unlabeled images. This paper aims to improve their performance further by utilizing the architectural advantages of the…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Sukmin Yun , Hankook Lee , Jaehyung Kim , Jinwoo Shin

Autoregressive (AR) models have recently shown strong performance in image generation, where a critical component is the visual tokenizer (VT) that maps continuous pixel inputs to discrete token sequences. The quality of the VT largely…

计算机视觉与模式识别 · 计算机科学 2025-05-20 Huawei Lin , Tong Geng , Zhaozhuo Xu , Weijie Zhao

Since the introduction of Vision Transformer (ViT), patchification has long been regarded as a de facto image tokenization approach for plain visual architectures. By compressing the spatial size of images, this approach can effectively…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Feng Wang , Yaodong Yu , Guoyizhe Wei , Wei Shao , Yuyin Zhou , Alan Yuille , Cihang Xie

Vision Transformer (ViT) autoencoders have emerged as compelling tokenizers for images, offering improved reconstruction over convolutional tokenizers. However, existing ViT tokenizers cannot explore this landscape as performance degrades…

Multimodal representation learning has shown promising improvements on various vision-language tasks. Most existing methods excel at building global-level alignment between vision and language while lacking effective fine-grained image-text…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Zijia Zhao , Longteng Guo , Xingjian He , Shuai Shao , Zehuan Yuan , Jing Liu

Masked Image Modeling (MIM) has recently been established as a potent pre-training paradigm. A pretext task is constructed by masking patches in an input image, and this masked content is then predicted by a neural network using visible…

In this paper, we present a comparative analysis of various self-supervised Vision Transformers (ViTs), focusing on their local representative power. Inspired by large language models, we examine the abilities of ViTs to perform various…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Ani Vanyan , Alvard Barseghyan , Hakob Tamazyan , Vahan Huroyan , Hrant Khachatrian , Martin Danelljan

In this work, we reveal the limitations of visual tokenizers and VAEs in preserving fine-grained features, and propose a benchmark to evaluate reconstruction performance for two challenging visual contents: text and face. Visual tokenizers…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Junfeng Wu , Dongliang Luo , Weizhi Zhao , Zhihao Xie , Yuanhao Wang , Junyi Li , Xudong Xie , Yuliang Liu , Xiang Bai

Image segmentation is often ambiguous at the level of individual image patches and requires contextual information to reach label consensus. In this paper we introduce Segmenter, a transformer model for semantic segmentation. In contrast to…

计算机视觉与模式识别 · 计算机科学 2021-09-03 Robin Strudel , Ricardo Garcia , Ivan Laptev , Cordelia Schmid

In this paper, we explore the possibility of building a unified foundation model that can be adapted to both vision-only and text-only tasks. Starting from BERT and ViT, we design a unified transformer consisting of modality-specific…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Qing Li , Boqing Gong , Yin Cui , Dan Kondratyuk , Xianzhi Du , Ming-Hsuan Yang , Matthew Brown

Recently, vision transformer (ViT) and its variants have achieved promising performances in various computer vision tasks. Yet the high computational costs and training data requirements of ViTs limit their application in…

计算机视觉与模式识别 · 计算机科学 2021-12-01 Hao Yu , Jianxin Wu