Title
Saliency Detection Based on the Combination of High-Level Knowledge and Low-Level Cues in Foggy Images
Abstract
A key issue in saliency detection of the foggy images in the wild for human tracking is how to effectively define the less obvious salient objects, and the leading cause is that the contrast and resolution is reduced by the light scattering through fog particles. In this paper, to suppress the interference of the fog and acquire boundaries of salient objects more precisely, we present a novel saliency detection method for human tracking in the wild. In our method, a combination of object contour detection and salient object detection is introduced. The proposed model can not only maintain the object edge more precisely via object contour detection, but also ensure the integrity of salient objects, and finally obtain accurate saliency maps of objects. Firstly, the input image is transformed into HSV color space, and the amplitude spectrum (AS) of each color channel is adjusted to obtain the frequency domain (FD) saliency map. Then, the contrast of the local-global superpixel is calculated, and the saliency map of the spatial domain (SD) is obtained. We use Discrete Stationary Wavelet Transform (DSWT) to fuse the cues of the FD and SD. Finally, a fully convolutional encoder-decoder model is utilized to refine the contour of the salient objects. Experimental results demonstrate that the presented model can remove the influence of fog efficiently, and the performance is better than 16 state-of-the-art saliency models.
Year
DOI
Venue
2019
10.3390/e21040374
ENTROPY
Keywords
Field
DocType
saliency detection,foggy image,spatial domain,frequency domain,object contour detection,discrete stationary wavelet transform
Frequency domain,HSL and HSV,Computer vision,Mathematical optimization,Salience (neuroscience),Frequency spectrum,Artificial intelligence,Interference (wave propagation),Stationary wavelet transform,Fuse (electrical),Channel (digital image),Mathematics
Journal
Volume
Issue
ISSN
21
4
1099-4300
Citations 
PageRank 
References 
3
0.38
0
Authors
3
Name
Order
Citations
PageRank
Xin Zhu17316.49
Xin Xu216240.08
Nan Mu3279.57