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Semantic Communication (SC) is an emerging technology aiming to surpass the Shannon limit. Traditional SC strategies often minimize signal distortion between the original and reconstructed data, neglecting perceptual quality, especially in…

机器学习 · 计算机科学 2024-08-12 Kexin Zhang , Lixin Li , Wensheng Lin , Yuna Yan , Rui Li , Wenchi Cheng , Zhu Han

In this study, we identify the need for an interpretable, quantitative score of the repeatability, or consistency, of image generation in diffusion models. We propose a semantic approach, using a pairwise mean CLIP (Contrastive…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Brinnae Bent

Joint source-channel coding (JSCC) is a promising paradigm for next-generation communication systems, particularly in challenging transmission environments. In this paper, we propose a novel standard-compatible JSCC framework for the…

信息论 · 计算机科学 2025-01-07 Xue Han , Yongpeng Wu , Zhen Gao , Biqian Feng , Yuxuan Shi , Deniz Gündüz , Wenjun Zhang

Semantic communication is recognized for its high compression efficiency and robust resistance to noise. However, utilizing a fixed transmission rate in environments with dynamic signal-to-noise ratios (SNR) often results in inefficient use…

信号处理 · 电气工程与系统科学 2025-04-30 Zhiye Sun , Shuai Ma , Shiyin Li

Semantic communication, rather than on a bit-by-bit recovery of the transmitted messages, focuses on the meaning and the goal of the communication itself. In this paper, we propose a novel semantic image coding scheme that preserves the…

信息论 · 计算机科学 2024-02-23 Francesco Pezone , Osman Musa , Giuseppe Caire , Sergio Barbarossa

In this paper, the problem of semantic-based efficient image transmission is studied over the Internet of Vehicles (IoV). In the considered model, a vehicle shares massive amount of visual data perceived by its visual sensors to assist…

网络与互联网体系结构 · 计算机科学 2022-10-12 Qiang Pan , Haonan Tong , Jie Lv , Tao Luo , Zhilong Zhang , Changchuan Yin , Jianfeng Li

Assessing the similarity of two images is a complex task that attracts significant efforts in the image processing community. The widely used Structural Similarity Index Measure (SSIM) addresses this problem by quantifying a perceptual…

数值分析 · 数学 2022-11-29 Francesco Marchetti , Gabriele Santin

Image captioning has long been a pivotal task in visual understanding, with recent advancements in vision-language models (VLMs) significantly enhancing the ability to generate detailed image captions. However, the evaluation of detailed…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Qinghao Ye , Xianhan Zeng , Fu Li , Chunyuan Li , Haoqi Fan

Semantic communication (SemCom) aims to convey the meaning behind a transmitted message by transmitting only semantically-relevant information. This semantic-centric design helps to minimize power usage, bandwidth consumption, and…

信号处理 · 电气工程与系统科学 2023-04-26 Tilahun M. Getu , Georges Kaddoum , Mehdi Bennis

Modeling semantic information is helpful for scene text recognition. In this work, we propose to model semantic and visual information jointly with a Visual-Semantic Transformer (VST). The VST first explicitly extracts primary semantic…

计算机视觉与模式识别 · 计算机科学 2021-12-03 Xin Tang , Yongquan Lai , Ying Liu , Yuanyuan Fu , Rui Fang

Beyond conventional paradigms of translating speech and text, recently, there has been interest in automated transcreation of images to facilitate localization of visual content across different cultures. Attempts to define this as a formal…

计算与语言 · 计算机科学 2025-03-24 Simran Khanuja , Vivek Iyer , Claire He , Graham Neubig

Visual Semantic Embedding (VSE) aims to extract the semantics of images and their descriptions, and embed them into the same latent space for cross-modal information retrieval. Most existing VSE networks are trained by adopting a hard…

计算机视觉与模式识别 · 计算机科学 2023-02-15 Yan Gong , Georgina Cosma

Place recognition gives a SLAM system the ability to correct cumulative errors. Unlike images that contain rich texture features, point clouds are almost pure geometric information which makes place recognition based on point clouds…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Lin Li , Xin Kong , Xiangrui Zhao , Tianxin Huang , Yong Liu

The core objective of image captioning is to achieve lossless semantic compression from visual signals into textual modalities. However, the reliance on manually curated reference texts for evaluation essentially forces models to mimic…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Ziyun Chen , Fan Liu , Liang Yao , Chuanyi Zhang , Yuye Ma , Wei Zhou

Semantic communication (SC) is emerging as a pivotal innovation within the 6G framework, aimed at enabling more intelligent transmission. This development has led to numerous studies focused on designing advanced systems through powerful…

信号处理 · 电气工程与系统科学 2024-12-30 Guangyi Zhang , Kequan Zhou , Yunlong Cai , Qiyu Hu , Guanding Yu

Perceptual distances between images, as measured in the space of pre-trained deep features, have outperformed prior low-level, pixel-based metrics on assessing perceptual similarity. While the capabilities of older and less accurate models…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Manoj Kumar , Neil Houlsby , Nal Kalchbrenner , Ekin D. Cubuk

Vision-language models (VLMs) excel in semantic tasks but falter at a core human capability: detecting hidden content in optical illusions or AI-generated images through perceptual adjustments like zooming. We introduce HC-Bench, a…

计算与语言 · 计算机科学 2025-10-16 Sifan Li , Yujun Cai , Yiwei Wang

Evaluating text-to-image generative models remains a challenge, despite the remarkable progress being made in their overall performances. While existing metrics like CLIPScore work for coarse evaluations, they lack the sensitivity to…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Georgia Gabriela Sampaio , Ruixiang Zhang , Shuangfei Zhai , Jiatao Gu , Josh Susskind , Navdeep Jaitly , Yizhe Zhang

Judging the similarity of visualizations is crucial to various applications, such as visualization-based search and visualization recommendation systems. Recent studies show deep-feature-based similarity metrics correlate well with…

人机交互 · 计算机科学 2025-03-04 Sheng Long , Angelos Chatzimparmpas , Emma Alexander , Matthew Kay , Jessica Hullman

Image captioning evaluation metrics can be divided into two categories, reference-based metrics and reference-free metrics. However, reference-based approaches may struggle to evaluate descriptive captions with abundant visual details…

计算机视觉与模式识别 · 计算机科学 2024-07-29 Zequn Zeng , Jianqiao Sun , Hao Zhang , Tiansheng Wen , Yudi Su , Yan Xie , Zhengjue Wang , Bo Chen