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相关论文: VQFR: Blind Face Restoration with Vector-Quantized…

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Diffusion-based methodologies have shown significant potential in blind face restoration (BFR), leveraging their robust generative capabilities. However, they are often criticized for two significant problems: 1) slow training and inference…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Ziying Zhang , Xiang Gao , Zhixin Wang , Qiang hu , Xiaoyun Zhang

Quantum error correction, which utilizes logical qubits that are encoded as redundant multiple physical qubits to find and correct errors in physical qubits, is indispensable for practical quantum computing. Surface code is considered to be…

机器学习 · 计算机科学 2025-09-15 Hoshitaro Ohnishi , Hideo Mukai

Blind face restoration (BFR) is fundamentally challenged by the extensive range of degradation types and degrees that impact model generalization. Recent advancements in diffusion models have made considerable progress in this field.…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Xinmin Qiu , Bonan Li , Zicheng Zhang , Congying Han , Tiande Guo

Visual tokenizers are fundamental to image generation. They convert visual data into discrete tokens, enabling transformer-based models to excel at image generation. Despite their success, VQ-based tokenizers like VQGAN face significant…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Zechen Bai , Jianxiong Gao , Ziteng Gao , Pichao Wang , Zheng Zhang , Tong He , Mike Zheng Shou

The increasing efficiency and compactness of deep learning architectures, together with hardware improvements, have enabled the complex and high-dimensional modelling of medical volumetric data at higher resolutions. Recently,…

图像与视频处理 · 电气工程与系统科学 2020-02-14 Petru-Daniel Tudosiu , Thomas Varsavsky , Richard Shaw , Mark Graham , Parashkev Nachev , Sebastien Ourselin , Carole H. Sudre , M. Jorge Cardoso

Very low-resolution face recognition (VLRFR) poses unique challenges, such as tiny regions of interest and poor resolution due to extreme standoff distance or wide viewing angle of the acquisition devices. In this paper, we study principled…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Jacky Chen Long Chai , Tiong-Sik Ng , Cheng-Yaw Low , Jaewoo Park , Andrew Beng Jin Teoh

Face super-resolution aims to reconstruct a high-resolution face image from a low-resolution face image. Previous methods typically employ an encoder-decoder structure to extract facial structural features, where the direct downsampling…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Wenjie Li , Heng Guo , Xuannan Liu , Kongming Liang , Jiani Hu , Zhanyu Ma , Jun Guo

Few-shot font generation is challenging, as it needs to capture the fine-grained stroke styles from a limited set of reference glyphs, and then transfer to other characters, which are expected to have similar styles. However, due to the…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Mingshuai Yao , Yabo Zhang , Xianhui Lin , Xiaoming Li , Wangmeng Zuo

Large Language Models (LLMs) face significant challenges in edge deployment due to their massive parameter scale. Vector Quantization (VQ), a clustering-based quantization method, serves as a prevalent solution to this issue for its…

机器学习 · 计算机科学 2025-06-27 Yuxuan Yue , Zukang Xu , Zhihang Yuan , Dawei Yang , Jianlong Wu , Liqiang Nie

Object-Centric Learning (OCL) aggregates image or video feature maps into object-level feature vectors, termed \textit{slots}. It's self-supervision of reconstructing the input from slots struggles with complex object textures, thus Vision…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Rongzhen Zhao , Vivienne Wang , Juho Kannala , Joni Pajarinen

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

Blind face restoration (BFR) is a highly challenging problem due to the uncertainty of data degradation patterns. Current BFR methods have realized certain restored productions but with inherent neural degradations that limit real-world…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Nan Gao , Jia Li , Huaibo Huang , Ke Shang , Ran He

While deep learning-based methods for blind face restoration have achieved unprecedented success, they still suffer from two major limitations. First, most of them deteriorate when facing complex degradations out of their training data.…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Zongsheng Yue , Chen Change Loy

Product quantisation (PQ) is a classical method for scalable vector encoding, yet it has seen limited usage for latent representations in high-fidelity image generation. In this work, we introduce PQGAN, a quantised image autoencoder that…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Denis Zavadski , Nikita Philip Tatsch , Carsten Rother

In recent years, various Blind Face Restoration (BFR) techniques were developed. These techniques transform low quality faces suffering from multiple degradations to more realistic and natural face images with high perceptual quality.…

计算机视觉与模式识别 · 计算机科学 2023-08-17 Messaoud Bengherabi , Douaa Laib , Fella Souhila Lasnami , Ryma Boussaha

Recent progress in blind face restoration has resulted in producing high-quality restored results for static images. However, efforts to extend these advancements to video scenarios have been minimal, partly because of the absence of…

计算机视觉与模式识别 · 计算机科学 2024-10-16 Zhouxia Wang , Jiawei Zhang , Xintao Wang , Tianshui Chen , Ying Shan , Wenping Wang , Ping Luo

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

Vector-quantized based models have recently demonstrated strong potential for visual prior modeling. However, existing VQ-based methods simply encode visual features with nearest codebook items and train index predictor with code-level…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Qifan Li , Jiale Zou , Jinhua Zhang , Wei Long , Xingyu Zhou , Shuhang Gu

Due to its efficiency, Post-Training Quantization (PTQ) has been widely adopted for compressing Vision Transformers (ViTs). However, when quantized into low-bit representations, there is often a significant performance drop compared to…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Rui Ding , Liang Yong , Sihuan Zhao , Jing Nie , Lihui Chen , Haijun Liu , Xichuan Zhou

Efficiently encoding classical visual data into quantum states is essential for realizing practical quantum neural networks (QNNs). However, existing encoding schemes often discard spatial and semantic information when adapting…

量子物理 · 物理学 2025-11-20 Yuhu Lu , Jinjing Shi