applied sciences Review Investigations of Object Detection in Images/Videos Using Various Deep Learning Techniques and Embedded Platforms—A Comprehensive Review Chinthakindi Balaram Murthy 1,†, Mohammad Farukh Hashmi 1,† , Neeraj Dhanraj Bokde 2,† and Zong Woo Geem 3,* 1 Department of Electronics and Communication Engineering, National Institute of Technology, Warangal 506004, India;
[email protected] (C.B.M.);
[email protected] (M.F.H.) 2 Department of Engineering—Renewable Energy and Thermodynamics, Aarhus University, 8000 Aarhus, Denmark;
[email protected] 3 Department of Energy IT, Gachon University, Seongnam 13120, Korea * Correspondence:
[email protected]; Tel.: +82-31-750-5586 † These authors contributed equally to this work. Received: 15 April 2020; Accepted: 2 May 2020; Published: 8 May 2020 Abstract: In recent years there has been remarkable progress in one computer vision application area: object detection. One of the most challenging and fundamental problems in object detection is locating a specific object from the multiple objects present in a scene. Earlier traditional detection methods were used for detecting the objects with the introduction of convolutional neural networks. From 2012 onward, deep learning-based techniques were used for feature extraction, and that led to remarkable breakthroughs in this area. This paper shows a detailed survey on recent advancements and achievements in object detection using various deep learning techniques. Several topics have been included, such as Viola–Jones (VJ), histogram of oriented gradient (HOG), one-shot and two-shot detectors, benchmark datasets, evaluation metrics, speed-up techniques, and current state-of-art object detectors. Detailed discussions on some important applications in object detection areas, including pedestrian detection, crowd detection, and real-time object detection on Gpu-based embedded systems have been presented.