Core Concepts
This study introduces a novel approach that leverages quantum annealing (QA) to expedite computation speed, while enhancing tracking accuracy through the ensembling of object tracking processes. A method to further improve the efficiency of MOT using reverse annealing (RA) is also proposed.
Abstract
The paper presents two key methods to improve multiple object tracking (MOT):
Quantum-Ensemble MOT:
Formulates the MOT problem as a maximal matching problem in a bipartite graph, which can be solved using a QUBO (Quadratic Unconstrained Binary Optimization) representation.
Proposes a method to integrate the results of multiple tracking algorithms (e.g., tracking based on IoU and appearance features) using quantum annealing.
The integration of multiple matchings is performed by a cyclic method that identifies and retains the optimal alternating path, rather than a simple majority voting.
Experiments on the UA-DETRAC dataset show that the proposed Quantum-Ensemble MOT method outperforms the baseline DeepSORT algorithm in terms of MOTA, IDF1, ID switches, and absolute percentage error of vehicle count.
Efficiency Improvement of MOT using Reverse Annealing (RA):
Utilizes the sequential nature of MOT and the gradual change in object positions to initialize the quantum annealing process using a predicted initial state.
Employs reverse annealing, which starts from the predicted initial state and efficiently searches for a more refined solution by leveraging quantum fluctuations.
Experiments demonstrate that the RA-based method can achieve comparable accuracy to the Quantum-Ensemble MOT, but with a significantly reduced annealing time of 3 μs per tracking process.
The proposed methods show great potential for real-time MOT applications, such as traffic flow measurement, collision prediction for autonomous vehicles, and quality control in manufacturing.
Stats
The number of detected vehicles in the MVI 39271 video is 47.
The number of detected vehicles in the MVI 39401 video is 82.
Quotes
"Not only accuracy in object tracking but also latency-free real-time processing are needed in situations where processing of control is required immediately after tracking."
"Research on MOT using QA or adiabatic quantum computation has been carried out in recent years, however, these studies have been limited to the examination of the reduction of computational costs and have not reported improvements in accuracy."