A Novel Multiresolution Spatiotemporal Saliency Detection Model and Its Applications in Image and Video Compression

—Salient areas in natural scenes are generally regarded as areas which the human eye will typically focus on, and finding these areas is the key step in object detection. In computer vision, many models have been proposed to simulate the behavior of eyes such as SaliencyToolBox (STB), Neuromorphic Vision Toolkit (NVT), and others, but they demand high computational cost and computing useful results mostly relies on their choice of parameters. Although some region-based approaches were proposed to reduce the computational complexity of feature maps, these approaches still were not able to work in real time. Recently, a simple and fast approach called spectral residual (SR) was proposed, which uses the SR of the amplitude spectrum to calculate the image’s saliency map. However, in our previous work, we pointed out that it is the phase spectrum, not the amplitude spectrum, of an image’s Fourier transform that is key to calculating the location of salient areas, and proposed the pha...

• Type: Journal
• Year: 2010
• Where: TIP
• Authors: Chenlei Guo, Liming Zhang
• Keywords: Phase Spectrum, Saliency Map, Spatiotemporal Saliency, TIP 2010