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With recent advances in image-to-image translation tasks, remarkable progress has been witnessed in generating face images from sketches. However, existing methods frequently fail to generate images with details that are semantically and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-09 Binxin Yang , Xuejin Chen , Chaoqun Wang , Chi Zhang , Zihan Chen , Xiaoyan Sun

The emerging semantic compression has been receiving increasing research efforts most recently, capable of achieving high fidelity restoration during compression, even at extremely low bitrates. However, existing semantic compression…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Shengxi Li , Zifu Zhang , Mai Xu , Lai Jiang , Yufan Liu , Ce Zhu

Most video compression methods focus on human visual perception, neglecting semantic preservation. This leads to severe semantic loss during the compression, hampering downstream video analysis tasks. In this paper, we propose a Masked…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Yuan Tian , Xiaoyue Ling , Cong Geng , Qiang Hu , Guo Lu , Guangtao Zhai

A proper semantic representation for encoding side information is key to the success of zero-shot learning. In this paper, we explore two alternative semantic representations especially for zero-shot human action recognition: textual…

Computer Vision and Pattern Recognition · Computer Science 2017-06-29 Qian Wang , Ke Chen

Single encoder-decoder methodologies for semantic segmentation are reaching their peak in terms of segmentation quality and efficiency per number of layers. To address these limitations, we propose a new architecture based on a decoder…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Gabriel L. Oliveira , Senthil Yogamani , Wolfram Burgard , Thomas Brox

In recent years, layered image compression is demonstrated to be a promising direction, which encodes a compact representation of the input image and apply an up-sampling network to reconstruct the image. To further improve the quality of…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Trinh Man Hoang , Jinjia Zhou , Yibo Fan

Semantic communications can reduce the resource consumption by transmitting task-related semantic information extracted from source messages. However, when the source messages are utilized for various tasks, e.g., wireless sensing data for…

Signal Processing · Electrical Eng. & Systems 2023-03-28 Hongyang Du , Jiacheng Wang , Dusit Niyato , Jiawen Kang , Zehui Xiong , Junshan Zhang , Xuemin , Shen

Building correspondences across different modalities, such as video and language, has recently become critical in many visual recognition applications, such as video captioning. Inspired by machine translation, recent models tackle this…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Silvio Olivastri , Gurkirt Singh , Fabio Cuzzolin

Modern communications are usually designed to pursue a higher bit-level precision and fewer bits while transmitting a message. This article rethinks these two major features and introduces the concept and advantage of semantics that…

Signal Processing · Electrical Eng. & Systems 2022-06-09 Kun Lu , Qingyang Zhou , Rongpeng Li , Zhifeng Zhao , Xianfu Chen , Jianjun Wu , Honggang Zhang

Semantic communication represents a promising technique towards reducing communication costs, especially when dealing with image segmentation, but it still lacks a balance between computational efficiency and bandwidth requirements while…

Networking and Internet Architecture · Computer Science 2025-07-22 Ebrahim Abu-Helalah , Jordi Serra , Jordi Perez-Romero

Semantic communication is deemed as a revolution of Shannon's paradigm in the six-generation (6G) wireless networks. It aims at transmitting the extracted information rather than the original data, which receivers will try to recover.…

Signal Processing · Electrical Eng. & Systems 2023-12-08 Yang Li , Xinyu Zhou , Jun Zhao

As semantic communication (SemCom) attracts growing attention as a novel communication paradigm, ensuring the security of transmitted semantic information over open wireless channels has become a critical issue. However, traditional…

Information Theory · Computer Science 2025-11-25 Weixuan Chen , Qianqian Yang , Shuo Shao , Zhiguo Shi , Jiming Chen , Xuemin , Shen

Camera sensors have been widely used in intelligent robotic systems. Developing camera sensors with high sensing efficiency has always been important to reduce the power, memory, and other related resources. Inspired by recent success on…

Image and Video Processing · Electrical Eng. & Systems 2023-10-11 Bowen Zhang , Zhijin Qin , Geoffrey Ye Li

Few-shot semantic segmentation (FSS) aims to segment novel classes in query images using only a small annotated support set. While prior research has mainly focused on improving decoders, the encoder's limited ability to extract meaningful…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Pasquale De Marinis , Gennaro Vessio , Giovanna Castellano

Few-shot semantic segmentation (FSS) offers immense potential in the field of medical image analysis, enabling accurate object segmentation with limited training data. However, existing FSS techniques heavily rely on annotated semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Sanaz Karimijafarbigloo , Reza Azad , Dorit Merhof

Semantic maps are increasingly utilized in areas such as robotics, autonomous systems, and extended reality, motivating the investigation of efficient compression methods that preserve structured semantic information. This paper studies…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Runyu Yang , Junqi Liao , Hyomin Choi , Fabien Racapé , Ivan V. Bajić

We introduce SketchGNN, a convolutional graph neural network for semantic segmentation and labeling of freehand vector sketches. We treat an input stroke-based sketch as a graph, with nodes representing the sampled points along input…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Lumin Yang , Jiajie Zhuang , Hongbo Fu , Xiangzhi Wei , Kun Zhou , Youyi Zheng

Traditional communication systems focus on the transmission process, and the context-dependent meaning has been ignored. The fact that 5G system has approached Shannon limit and the increasing amount of data will cause communication…

Signal Processing · Electrical Eng. & Systems 2022-02-22 Chen Dong , Haotai Liang , Xiaodong Xu , Shujun Han , Bizhu Wang , Ping Zhang

Few-Shot Semantic Segmentation (FSS), which focuses on segmenting new classes in images using only a limited number of annotated examples, has recently progressed in data-scarce domains. However, in this work, we show that the existing FSS…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Zhuohao Li , Zhicheng Huang , Wenchao Liu , Zhuxin Zhang , Jianming Miao

Composed image retrieval is a type of image retrieval task where the user provides a reference image as a starting point and specifies a text on how to shift from the starting point to the desired target image. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xingyu Yang , Daqing Liu , Heng Zhang , Yong Luo , Chaoyue Wang , Jing Zhang