Title :
Supervised Low-Rank Matrix Recovery for Traffic Sign Recognition in Image Sequences
Author :
Deli Pei ; Fuchun Sun ; Huaping Liu
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China
Abstract :
Correlations in image sequences can be potentially useful for recovering feature representation and subsequently prompting classification performance, which are often neglected by traditional classification approaches. In this letter, we present a supervised low-rank matrix recovery model to leverage these correlations for classification tasks by introducing a supervised penalty term to the classic low-rank matrix recovery model. This allows us to not only exploit these correlations to recover the underlying feature representation from corrupted observation, but also preserve discriminative information for classification. Our model is evaluated on both real-world data and synthetic data, and experimental results show that our model obtains highly competitive performance with state-of-the-art algorithms and is especially robust to different levels of corruptions.
Keywords :
feature extraction; image classification; image representation; image sequences; matrix algebra; object recognition; traffic engineering computing; classification approach; classification performance; classification task; corrupted observation; discriminative information preservation; feature representation recovery; image sequence correlation; supervised low-rank matrix recovery; supervised penalty term; traffic sign recognition; Correlation; Data models; Image sequences; Linear programming; Optimization; Robustness; Sparse matrices; Signal processing; supervised low-rank matrix recovery; traffic sign recognition;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2013.2241760