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Neural image compression methods have seen increasingly strong performance in recent years. However, they suffer orders of magnitude higher computational complexity compared to traditional codecs, which hinders their real-world deployment.…

图像与视频处理 · 电气工程与系统科学 2023-11-13 Yibo Yang , Stephan Mandt

Recently, the remarkable success of pre-trained Vision Transformers (ViTs) from image-text matching has sparked an interest in image-to-video adaptation. However, most current approaches retain the full forward pass for each frame, leading…

计算机视觉与模式识别 · 计算机科学 2024-08-15 Guozhen Zhang , Jingyu Liu , Shengming Cao , Xiaotong Zhao , Kevin Zhao , Kai Ma , Limin Wang

The discrete cosine transform (DCT), introduced by Ahmed, Natarajan and Rao, has been used in many applications of digital signal processing, data compression and information hiding. There are four types of the discrete cosine transform. In…

信息论 · 计算机科学 2011-09-05 Jianqin Zhou

Distributed Video Coding (DVC) is a new coding paradigm for video compression, based on Slepian- Wolf (lossless coding) and Wyner-Ziv (lossy coding) information theoretic results. DVC is useful for emerging applications such as wireless…

多媒体 · 计算机科学 2011-03-25 Vijay Kumar Kodavalla , Dr. P. G. Krishna Mohan

This paper explores learned image compression based on traditional and learned discrete wavelet transform (DWT) architectures and learned entropy models for coding DWT subband coefficients. A learned DWT is obtained through the lifting…

图像与视频处理 · 电气工程与系统科学 2022-12-08 Ugur Berk Sahin , Fatih Kamisli

Depth information which specifies the distance between objects and current position of the robot is essential for many robot tasks such as navigation. Recently, researchers have proposed depth completion frameworks to provide dense depth…

机器人学 · 计算机科学 2025-07-22 Kevin Christiansen Marsim , Jinwoo Jeon , Yeeun Kim , Myeongwoo Jeong , Hyun Myung

To achieve higher accuracy in machine learning tasks, very deep convolutional neural networks (CNNs) are designed recently. However, the large memory access of deep CNNs will lead to high power consumption. A variety of hardware-friendly…

图像与视频处理 · 电气工程与系统科学 2021-06-25 Yubo Shi , Meiqi Wang , Siyi Chen , Jinghe Wei , Zhongfeng Wang

Diffusion transformer-based video generation models (DiTs) have recently attracted widespread attention for their excellent generation quality. However, their computational cost remains a major bottleneck-attention alone accounts for over…

计算机视觉与模式识别 · 计算机科学 2025-05-22 Xuan Shen , Chenxia Han , Yufa Zhou , Yanyue Xie , Yifan Gong , Quanyi Wang , Yiwei Wang , Yanzhi Wang , Pu Zhao , Jiuxiang Gu

This paper presents a memory efficient VLSI architecture of low complex video encoder using three dimensional (3-D) wavelet and Compressed Sensing (CS) is proposed for space and low power video applications. Majority of the conventional…

多媒体 · 计算机科学 2015-09-15 Batta Kota Naga Srinivasarao , Indrajit Chakrabarti

The $N$-point discrete Fourier transform (DFT) is a cornerstone for several signal processing applications. Many of these applications operate in real-time, making the computational complexity of the DFT a critical performance indicator to…

数据结构与算法 · 计算机科学 2024-12-18 Saulo Queiroz , João P. Vilela , Edmundo Monteiro

We propose a new and completely data-driven approach for generating a photo-consistent image transform. We show that simple classical algorithms which operate in the transform domain become extremely resilient to illumination changes. This…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Damian Kaliroff , Guy Gilboa

Linear block transform coding remains a fundamental component of image and video compression. Although the Discrete Cosine Transform (DCT) is widely employed in all current compression standards, its sub-optimality has sparked ongoing…

图像与视频处理 · 电气工程与系统科学 2024-11-28 Alessandro Gnutti , Chia-Hao Kao , Wen-Hsiao Peng , Riccardo Leonardi

Video-to-Text (VTT) is the task of automatically generating descriptions for short audio-visual video clips, which can support visually impaired people to understand scenes of a YouTube video for instance. Transformer architectures have…

计算机视觉与模式识别 · 计算机科学 2021-12-30 Philipp Harzig , Moritz Einfalt , Rainer Lienhart

Nowadays, real-time video communication over the internet through video conferencing applications has become an invaluable tool in everyone's professional and personal life. This trend underlines the need for video coding algorithms that…

多媒体 · 计算机科学 2015-10-05 Stamos Katsigiannis , Georgios Papaioannou , Dimitris Maroulis

With the integration of communication and computing, it is expected that part of the computing is transferred to the transmitter side. In this paper we address the general problem of Frequency Modulation (FM) for function approximation…

信号处理 · 电气工程与系统科学 2023-06-29 Marc Martinez-Gost , Ana Pérez-Neira , Miguel Ángel Lagunas

This paper proposes a lightweight neural network designed for realistic image dehazing, utilizing a Distilled Pooling Transformer Encoder, named DPTE-Net. Recently, while vision transformers (ViTs) have achieved great success in various…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Le-Anh Tran , Dong-Chul Park

Optoacoustic imaging technologies require fast and accurate signal pre-processing algorithms to enable widespread deployment in clinical and home-care settings. However, they still rely on the Discrete Fourier Transform (DFT) as the default…

Motivated by the efficiency investigation of the Tranformer-based transform coding framework, namely SwinT-ChARM, we propose to enhance the latter, as first, with a more straightforward yet effective Tranformer-based channel-wise…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Ahmed Ghorbel , Wassim Hamidouche , Luce Morin

Recently, many deep image compression methods have been proposed and achieved remarkable performance. However, these methods are dedicated to optimizing the compression performance and speed at medium and high bitrates, while research on…

图像与视频处理 · 电气工程与系统科学 2024-02-27 Zhiyuan Li , Chenyang Ge , Shun Li

Diffusion Transformers (DiTs) introduce the transformer architecture to diffusion tasks for latent-space image generation. With an isotropic architecture that chains a series of transformer blocks, DiTs demonstrate competitive performance…

计算机视觉与模式识别 · 计算机科学 2024-10-31 Yuchuan Tian , Zhijun Tu , Hanting Chen , Jie Hu , Chao Xu , Yunhe Wang