ISSN(Online): 2320-9801 ISSN (Print): 2320-9798 International Journal of Innovative Research in Computer and Communication Engineering (An ISO 3297: 2007 Certified Organization) Vol. 3, Issue 6, June 2015 Copyright to IJIRCCE DOI: 10.15680/ijircce.2015.0306021 5096 An Efficient Algorithm for Real Time Moving Object Detection using GMM and Optical Flow Parth Kishorbhai Bathia, Hetal Vala, Zubin Bhaidasna Student, Dept. of CSE., PIET, Gujarat Technical University, Gujarat, India Assistant Professor, Dept. of CSE., PIET, Gujarat Technical University, Gujarat, India Assistant Professor, Dept. of CE., PPI, Gujarat Technical University, Gujarat, India ABSTRACT: Real time moving object detection is sensing the physical moment in given particular area. For detecting the motion in real time there are multiple methods are available like Background Subtraction, Gaussian Mixture Model, Inter Frame Differencing, Kernel Density etc. Here for proposed work used Gaussian Mixture Model and Optical Flow technique for the moving object detection. Gaussian Mixture Model is better extract the foreground object but it more time consuming and Optical Flow is faster for moving object detection but it is not more accurate so by using these two approaches design new approach for detect the moving object in real time. KEYWORDS: Object Detection, Background Subtraction, Gaussian Mixture Model, Optical Flow, Video Surveillance. I. INTRODUCTION In real time moving object detection is nothing but detect motion for particular region. In now days there are different type of CCTV camera is available for detect an unusual activity but for more security this problem are still open. The principle sources of difficulties in the task of moving object detection are: 1) changes in appearance of the objects with viewpoint, illumination and articulation 2) partial occlusions of the target objects by other objects 3) Complexity of the background that is presence of waving tree leaves, waving of river water etc (4) environment changes [1]. In Fig 1 shown that the basic steps for the moving object detection. Fig.1. Basic Steps for Real Time Moving Object Detection