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Post-training quantization (PTQ) has emerged as a practical approach to compress large neural networks, making them highly efficient for deployment. However, effectively reducing these models to their low-bit counterparts without…

机器学习 · 计算机科学 2024-10-22 Aozhong Zhang , Zi Yang , Naigang Wang , Yingyong Qi , Jack Xin , Xin Li , Penghang Yin

Post-training quantization (PTQ) has emerged as a promising solution for reducing the storage and computational cost of vision transformers (ViTs). Recent advances primarily target at crafting quantizers to deal with peculiar activations…

计算机视觉与模式识别 · 计算机科学 2025-02-10 Runqing Jiang , Ye Zhang , Longguang Wang , Pengpeng Yu , Yulan Guo

The exponential growth of video traffic has placed increasing demands on bandwidth and storage infrastructure, particularly for content delivery networks (CDNs) and edge devices. While traditional video codecs like H.264 and HEVC achieve…

计算机视觉与模式识别 · 计算机科学 2026-01-01 Manikanta Kotthapalli , Banafsheh Rekabdar

A multi-grid multi-block-size vector quantization (MGBVQ) method is proposed for image coding in this work. The fundamental idea of image coding is to remove correlations among pixels before quantization and entropy coding, e.g., the…

计算机视觉与模式识别 · 计算机科学 2022-09-27 Yifan Wang , Zhanxuan Mei , Ioannis Katsavounidis , C. -C. Jay Kuo

Recent advancements in generative models have highlighted the crucial role of image tokenization in the efficient synthesis of high-resolution images. Tokenization, which transforms images into latent representations, reduces computational…

计算机视觉与模式识别 · 计算机科学 2024-06-12 Qihang Yu , Mark Weber , Xueqing Deng , Xiaohui Shen , Daniel Cremers , Liang-Chieh Chen

Data-free quantization (DFQ) enables model quantization without accessing real data, addressing concerns regarding data security and privacy. With the growing adoption of Vision Transformers (ViTs), DFQ for ViTs has garnered significant…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Yunshan Zhong , Yuyao Zhou , Yuxin Zhang , Wanchen Sui , Shen Li , Yong Li , Fei Chao , Rongrong Ji

We consider the image and video compression on resource limited platforms. An ultra low-cost image encoder, named Block Modulating Video Compression (BMVC) with an encoding complexity ${\cal O}(1)$ is proposed to be implemented on mobile…

图像与视频处理 · 电气工程与系统科学 2024-11-26 Siming Zheng , Yujia Xue , Waleed Tahir , Zhengjue Wang , Hao Zhang , Ziyi Meng , Gang Qu , Siwei Ma , Xin Yuan

The tokenization of speech with neural audio codec models is a vital part of modern AI pipelines for the generation or understanding of speech, alone or in a multimodal context. Traditionally such tokenization models have concentrated on…

音频与语音处理 · 电气工程与系统科学 2024-12-02 Julian D Parker , Anton Smirnov , Jordi Pons , CJ Carr , Zack Zukowski , Zach Evans , Xubo Liu

Quantum image computing draws a lot of attention due to storing and processing image data faster than classical. With increasing the image size, the number of connections also increases, leading to the circuit complex. Therefore, efficient…

量子物理 · 物理学 2023-06-23 Md Ershadul Haque , Manoranjan Paul , Anwaar Ulhaq , Tanmoy Debnath

This work presents VTok, a unified video tokenization framework that can be used for both generation and understanding tasks. Unlike the leading vision-language systems that tokenize videos through a naive frame-sampling strategy, we…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Feng Wang , Yichun Shi , Ceyuan Yang , Qiushan Guo , Jingxiang Sun , Alan Yuille , Peng Wang

Vector quantization (VQ) transforms continuous image features into discrete representations, providing compressed, tokenized inputs for generative models. However, VQ-based frameworks suffer from several issues, such as non-smooth latent…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Sicheng Yang , Xing Hu , Qiang Wu , Dawei Yang

We present VQTalker, a Vector Quantization-based framework for multilingual talking head generation that addresses the challenges of lip synchronization and natural motion across diverse languages. Our approach is grounded in the phonetic…

计算机视觉与模式识别 · 计算机科学 2024-12-19 Tao Liu , Ziyang Ma , Qi Chen , Feilong Chen , Shuai Fan , Xie Chen , Kai Yu

Vectorized quantum block encoding provides a way to embed classical data into Hilbert space, offering a pathway for quantum models, such as Quantum Transformers (QT), that replace classical self-attention with quantum circuit simulations to…

量子物理 · 物理学 2025-09-05 Ziqing Guo , Ziwen Pan , Alex Khan , Jan Balewski

Vector quantization (VQ) is a key technique in high-resolution and high-fidelity image synthesis, which aims to learn a codebook to encode an image with a sequence of discrete codes and then generate an image in an auto-regression manner.…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Guotao Liang , Baoquan Zhang , Yaowei Wang , Xutao Li , Yunming Ye , Huaibin Wang , Chuyao Luo , Kola Ye , linfeng Luo

Efficient image tokenization with high compression ratios remains a critical challenge for training generative models. We present SoftVQ-VAE, a continuous image tokenizer that leverages soft categorical posteriors to aggregate multiple…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Hao Chen , Ze Wang , Xiang Li , Ximeng Sun , Fangyi Chen , Jiang Liu , Jindong Wang , Bhiksha Raj , Zicheng Liu , Emad Barsoum

The objective of non-reference video quality assessment is to evaluate the quality of distorted video without access to reference high-definition references. In this study, we introduce an enhanced spatial perception module, pre-trained on…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Zihao Yu , Fengbin Guan , Yiting Lu , Xin Li , Zhibo Chen

The transformer extends its success from the language to the vision domain. Because of the stacked self-attention and cross-attention blocks, the acceleration deployment of vision transformer on GPU hardware is challenging and also rarely…

计算机视觉与模式识别 · 计算机科学 2023-05-19 Chong Yu , Tao Chen , Zhongxue Gan , Jiayuan Fan

Vector quantization (VQ) is a key component in discrete tokenizers for image generation, but its training is often unstable due to straight-through estimation bias, one-step-behind updates, and sparse codebook gradients, which lead to…

计算机视觉与模式识别 · 计算机科学 2025-09-15 Yifan Chang , Jie Qin , Limeng Qiao , Xiaofeng Wang , Zheng Zhu , Lin Ma , Xingang Wang

Tokens or patches within Vision Transformers (ViT) lack essential semantic information, unlike their counterparts in natural language processing (NLP). Typically, ViT tokens are associated with rectangular image patches that lack specific…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Young Kyung Kim , J. Matías Di Martino , Guillermo Sapiro

For autoregressive (AR) modeling of high-resolution images, vector quantization (VQ) represents an image as a sequence of discrete codes. A short sequence length is important for an AR model to reduce its computational costs to consider…

计算机视觉与模式识别 · 计算机科学 2022-03-10 Doyup Lee , Chiheon Kim , Saehoon Kim , Minsu Cho , Wook-Shin Han