The Application of Sparse Reconstruction Algorithms for Improving Background Dictionary in Visual Saliency Detection
Lei Feng, Haibin Li, Yakun Gao, Yakun Zhang · Intelligent Automation & Soft Computing · 2020
In the paper, we apply the sparse reconstruction algorithm of improved background dictionary to saliency detection. Firstly, after super-pixel segmentation, two bottom features are extracted: the color information of LAB and the texture features of the image by Gabor filter. Secondly, the convex hull theory is used to remove object region in boundary region, and K-means clustering algorithm is used to continue to simplify the background dictionary. Finally, the saliency map is obtained by calculating the reconstruction error. Compared with the mainstream algorithms, the accuracy and efficiency of this algorithm are better than those of other algorithms.