多媒体系统(MS)期刊详细介绍了多媒体计算,通信,存储和应用的各个方面的创新研究思想,新兴技术,最新方法和工具。它包含理论,实验和调查文章。多媒体系统的覆盖范围包括:在计算机系统中集成数字视频和音频功能;多媒体信息编码和数据交换格式;数字多媒体的操作系统机制;数字视频和音频网络与通信;存储模型和结构;用于支持多媒体应用程序的方法、范式、工具和软件体系结构;多媒体应用程序和应用程序接口,以及多媒体终端系统架构。 官网地址:http://dblp.uni-trier.de/db/journals/mms/

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It has been a long history that most object detection methods obtain objects by using the non-maximum suppression (NMS) and its improved versions like Soft-NMS to remove redundant bounding boxes. We challenge those NMS-based methods from three aspects: 1) The bounding box with highest confidence value may not be the true positive having the biggest overlap with the ground-truth box. 2) Not only suppression is required for redundant boxes, but also confidence enhancement is needed for those true positives. 3) Sorting candidate boxes by confidence values is not necessary so that full parallelism is achievable. In this paper, inspired by belief propagation (BP), we propose the Confidence Propagation Cluster (CP-Cluster) to replace NMS-based methods, which is fully parallelizable as well as better in accuracy. In CP-Cluster, we borrow the message passing mechanism from BP to penalize redundant boxes and enhance true positives simultaneously in an iterative way until convergence. We verified the effectiveness of CP-Cluster by applying it to various mainstream detectors such as FasterRCNN, SSD, FCOS, YOLOv3, YOLOv5, Centernet etc. Experiments on MS COCO show that our plug and play method, without retraining detectors, is able to steadily improve average mAP of all those state-of-the-art models with a clear margin from 0.2 to 1.9 respectively when compared with NMS-based methods. Source code is available at https://github.com/shenyi0220/CP-Cluster

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