Tracking of objects in spatiotemporal volume by graph-cuts

نویسنده

  • Braga Natarajan
چکیده

Tracking of objects in the spatiotemporal volume is a recent approach to solving the tracking problem. Graph cut based tools exist for tracking objects in the spatiotemporal volume, but these algorithms are still in the rudimentary stage and they require user interaction for successful tracking. In this paper an attempt to automate the tracking process is done by choosing appropriate energy functions and using local optical flow data with background subtraction techniques. The energy functions used and their respective weight assignments are presented. The algorithm developed is tested with a synthetic sequence and a real sequence. Experimental results show excellent tracking for the synthetic sequence and reasonable tracking for the real sequence.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Motion Segmentation and Tracking Using Normalized Cuts

We propose a motion segmentation algorithm that aims to break a scene into its most prominent moving groups. Instead of identifying point correspondences between the image frames, the idea to nd what groups of pixels are transformed from one image frame to another. To do this, we treat the image sequence as a three dimensional spatiotemporal data set and construct a weighted graph by taking eac...

متن کامل

Joint Tracking and Segmentation of Objects Using Graph Cuts

This paper presents a new method to both track and segment objects in videos. It includes predictions and observations inside an energy function that is minimized with graph cuts. The min-cut/max-flow algorithm provides a segmentation as the global minimum of the energy function, at a modest computational cost. Simultaneously, our algorithm associates the tracked objects to the observations dur...

متن کامل

Moving Objects Tracking in Video by Graph Cuts and Parameter Motion Model

The tracking of moving objects in a video sequence is an important task in different domains such as video compression, video surveillance and object recognition. In this paper, we propose an approach for integrated tracking and segmentation of moving objects from image sequences where the camera is in movement. This approach is based on the calculation of minimal cost of a cut in a graph “Grap...

متن کامل

An Object-driven Online Segmentation System for Mobile Robots

In this paper we propose an object-driven online segmentation system for mobile robots. Among existing tracking and segmentation methods, the methods themselves are highly emphasized while properties of objects are usually not exploited enough. We propose an adaptive selection mechanism based on the properties of the objects to automatically choose an optimal tracking algorithm. For textured ob...

متن کامل

Tracking with Graph Cuts: Treating Clutter with Adaptive Penalties

Many techniques for tracking based on gradient descent cannot follow objects as they undergo large movements or deformation. On the other hand, multi-hypothesis trackers capable of handling such behavior are computationally expensive. The standard graph cut technique offers a middle ground, quickly capturing objects anywhere in the image; however, because of its global nature, it is prone to ca...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004