Object tracking technology, which involves identifying and following objects across video frames, has advanced significantly and finds applications in areas like sports, security, and traffic management. Single object tracking, focusing on a single item, contrasts with multiple object tracking, which requires identifying and following multiple entities simultaneously. Object detection identifies objects in individual frames, whereas object tracking follows them across frames, using spatio-temporal data to predict trajectories. Challenges in tracking include occlusion, variations in viewpoints, and non-stationary cameras. Traditional tracking methods like Meanshift and Optical Flow, and algorithms like Kalman Filters, which predict object states despite noise, are foundational, yet modern approaches increasingly rely on deep learning. Deep learning models, such as Deep Regression Networks, ROLO, and Deep SORT, enhance tracking by integrating spatial and temporal data, using CNNs, LSTMs, and appearance feature vectors. Tools like Deep SORT combine detectors with tracking algorithms to maintain accuracy in complex environments, and the development of custom trackers involves training feature extractors using Siamese networks, emphasizing the importance of robust data and innovative distance metrics.