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Scene flow estimation is a crucial component in the development of autonomous driving and 3D robotics, providing valuable information for environment perception and navigation. Despite the advantages of learning-based scene flow estimation…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Rahul Ahuja , Chris Baker , Wilko Schwarting

Template matching by normalized cross correlation (NCC) is widely used for finding image correspondences. We improve the robustness of this algorithm by preprocessing images with "siamese" convolutional networks trained to maximize the…

Computer Vision and Pattern Recognition · Computer Science 2017-05-25 Davit Buniatyan , Thomas Macrina , Dodam Ih , Jonathan Zung , H. Sebastian Seung

In this paper, we propose a novel quadratic optimized model based on the deep convolutional neural network (QODCNN) for full-reference and no-reference screen content image (SCI) quality assessment. Unlike traditional CNN methods taking all…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Xuhao Jiang , Liquan Shen , Guorui Feng , Liangwei Yu , Ping An

Event-based cameras are raising interest within the computer vision community. These sensors operate with asynchronous pixels, emitting events, or "spikes", when the luminance change at a given pixel since the last event surpasses a certain…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Javier Cuadrado , Ulysse Rançon , Benoît Cottereau , Francisco Barranco , Timothée Masquelier

Convolutional Neural Networks (CNNs) have shown impressive performance in computer vision tasks such as image classification, detection, and segmentation. Moreover, recent work in Generative Adversarial Networks (GANs) has highlighted the…

Machine Learning · Computer Science 2021-01-06 Samarth Sinha , Animesh Garg , Hugo Larochelle

Mixed precision training (MPT) is becoming a practical technique to improve the speed and energy efficiency of training deep neural networks by leveraging the fast hardware support for IEEE half-precision floating point that is available in…

Machine Learning · Computer Science 2019-10-29 Ruizhe Zhao , Brian Vogel , Tanvir Ahmed

Convolutional Neural Networks(CNNs) are both computation and memory intensive which hindered their deployment in mobile devices. Inspired by the relevant concept in neural science literature, we propose Synaptic Pruning: a data-driven…

Machine Learning · Computer Science 2018-11-07 Chen Lin , Zhao Zhong , Wei Wu , Junjie Yan

Contrast pattern mining (CPM) aims to discover patterns whose support increases significantly from a background dataset compared to a target dataset. CPM is particularly useful for characterising changes in evolving systems, e.g., in…

Networking and Internet Architecture · Computer Science 2020-12-01 Elaheh AlipourChavary , Sarah M. Erfani , Christopher Leckie

We propose a fast, accurate matching method for estimating dense pixel correspondences across scenes. It is a challenging problem to estimate dense pixel correspondences between images depicting different scenes or instances of the same…

Computer Vision and Pattern Recognition · Computer Science 2015-04-24 Chao Zhang , Chunhua Shen , Tingzhi Shen

Automation of feature analysis in the dynamic image frame dataset deals with complexity of intensity mapping with normal and abnormal class. The threshold-based data clustering and feature analysis requires iterative model to learn the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-20 Aatif Jamshed , Bhawna Mallick , Rajendra Kumar Bharti

Event cameras capture brightness changes asynchronously with microsecond resolution, yet existing optical flow methods fail to fully exploit this temporal continuity. Frame-based approaches impose artificial accumulation latency and suffer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Gunwoo Jeon , Chaesong Park , Jongwoo Lim

We propose a consistency model based on the optimal-transport flow. A physics-informed design of partially input-convex neural networks (PICNN) plays a central role in constructing the flow field that emulates the displacement…

Machine Learning · Computer Science 2025-11-11 Fanghui Song , Zhongjian Wang , Jiebao Sun

We adopt Convolutional Neural Networks (CNNs) to be our parametric model to learn discriminative features and classifiers for local patch classification. Based on the occurrence frequency distribution of classes, an ensemble of CNNs…

Computer Vision and Pattern Recognition · Computer Science 2016-04-21 Bing Shuai , Zhen Zuo , Gang Wang , Bing Wang

Despite the significant progress that has been made on estimating optical flow recently, most estimation methods, including classical and deep learning approaches, still have difficulty with multi-scale estimation, real-time computation,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-09 Yi Zhu , Shawn Newsam

Learning matching costs has been shown to be critical to the success of the state-of-the-art deep stereo matching methods, in which 3D convolutions are applied on a 4D feature volume to learn a 3D cost volume. However, this mechanism has…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Jianyuan Wang , Yiran Zhong , Yuchao Dai , Kaihao Zhang , Pan Ji , Hongdong Li

Convolutional neural network (CNN) dataflow inference accelerators implemented in Field Programmable Gate Arrays (FPGAs) have demonstrated increased energy efficiency and lower latency compared to CNN execution on CPUs or GPUs. However, the…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-03-30 Mairin Kroes , Lucian Petrica , Sorin Cotofana , Michaela Blott

This paper studies the computational offloading of CNN inference in device-edge co-inference systems. Inspired by the emerging paradigm semantic communication, we propose a novel autoencoder-based CNN architecture (AECNN), for effective…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Nan Li , Alexandros Iosifidis , Qi Zhang

Features obtained from object recognition CNNs have been widely used for measuring perceptual similarities between images. Such differentiable metrics can be used as perceptual learning losses to train image enhancement models. However, the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Mauricio Delbracio , Hossein Talebi , Peyman Milanfar

We present a lossy image compression method based on deep convolutional neural networks (CNNs), which outperforms the existing BPG, WebP, JPEG2000 and JPEG as measured via multi-scale structural similarity (MS-SSIM), at the same bit rate.…

Image and Video Processing · Electrical Eng. & Systems 2018-06-06 Haojie Liu , Tong Chen , Qiu Shen , Tao Yue , Zhan Ma

Dense optical flow estimation is challenging when there are large displacements in a scene with heterogeneous motion dynamics, occlusion, and scene homogeneity. Traditional approaches to handle these challenges include hierarchical and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Ali Salehi , Madhusudhanan Balasubramanian