Object Detection SeriesJonathan Hui·Follow2 min read·Sep 10, 2018--1ListenSharePhoto by rawpixelOverviewWhat do we learn from region-based object detectors (Faster R-CNN, R-FCN, FPN)?In this series, we will take a comprehensive journey on object detection. In Part 1 here, we cover the region based…medium.comWhat do we learn from single shot object detectors (SSD, YOLOv3), FPN & Focal loss (RetinaNet)?In part 2, we will have a comprehensive review of single shot object detectors including SSD and YOLO (YOLOv2 and…medium.comSingle-shot methodsSSD object detection: Single Shot MultiBox Detector for real-time processingSSD are designed for object detection in real-time. Faster R-CNN uses a region proposal network to create boundary…medium.comReal-time Object Detection with YOLO, YOLOv2 and now YOLOv3You only look once (YOLO) is an object detection system targeted for real-time processing. We will introduce YOLO…medium.comYOLOv4While object detection matures in the last few years, the competition remains fierce. As shown below, YOLOv4 claims to…medium.comRegion-based methodsImage segmentation with Mask R-CNNIn a previous article, we discuss the use of region based object detector like Faster R-CNN to detect objects. Instead…medium.comUnderstanding Region-based Fully Convolutional Networks (R-FCN) for object detectionIntuitionmedium.comOthersUnderstanding Feature Pyramid Networks for object detection (FPN)Detecting objects in different scales is challenging in particular for small objects. We can use a pyramid of the same…medium.comComparisonDesign choices, lessons learned and trends for object detections?Detectors, like region-based detectors or single shot detectors, start from different paths but look much similar now…medium.comObject detection: speed and accuracy comparison (Faster R-CNN, R-FCN, SSD, FPN, RetinaNet and…It is very hard to have a fair comparison among different object detectors. There is no straight answer on which model…medium.comApplicationHow deep learning fakes videos (Deepfakes) and how to detect it?Fabrication of celebrity porn pics is nothing new. However, in late 2017, a user on Reddit named Deepfakes started…medium.comBasicsmAP (mean Average Precision) for Object DetectionmAP is the metric to measure the accuracy of object detectors like Faster R-CNN, SSD, etc. It is the average of the…medium.com
