Source Code for Video Tracking Using Particle Filter Algorithm

Resource Overview

This is a ready-to-run source program for video tracking implementation using particle filter algorithm, with pre-configured initial parameters. The core algorithm is computationally optimized with C++ code compiled into DLL via MEX files for MATLAB integration. Users can modify it for frame-difference based localization to avoid manual parameter adjustments when switching videos. The implementation demonstrates efficient particle filter application in visual tracking, featuring resampling mechanisms and likelihood estimation for target state prediction. Currently limited to AVI format input, users need to provide their own video files and update filename references in the video reading statements.

Detailed Documentation

This repository contains MATLAB-based source code implementing particle filtering for video object tracking. The algorithm employs Sequential Importance Resampling (SIR) with pre-initialized parameters including particle count, system noise covariance, and observation models. Key components include: 1) State transition functions handling target dynamics, 2) Observation likelihood calculation using color histograms or feature matching, 3) Systematic resampling to mitigate particle degeneracy. The computationally intensive core operations are accelerated through C++ MEX implementations for real-time performance. To execute: place your AVI-format video in the project directory and update the filename in the video reading command (e.g., replace 'video = myvideo.avi'). The architecture supports modifications for differential frame localization to enhance adaptability across different video sequences. This implementation provides a foundational framework for particle filter applications in computer vision, with opportunities for improvement in occlusion handling and multi-target scenarios. Contributors are welcome to collaborate on algorithm enhancements and optimization techniques.