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The proportion of aged population nowadays almost rises acutely in each countries, which resulted from the increasing life expectancy and falling fertility rates. The impairment of mobility is a major health concern for the elderly. While the more decline of daily activities, more dangerous the elderly would be. The design of an image-based surveillance system for tracking elderly's activities in...
In recent years, the overriding advantages long life, high efficiency, small size and short reaction time have made LED become a viable alternative to conventional light sources. LED lighting sources are usually composed of several individual LED cells which must be mounted on a panel as a lighting module. Being composed of several individual LED cells, the LED sources will cause the double image...
A low cost digital and manual spinneret inspection system is established in this paper. This system consists of a 3-axes manual stage, a telcentric lens, a top light source, a bottom light source, a CCD camera and a notebook. In this system, the system software doesn't use the commercial or open source image processing product, such as LabView, Holcon and OpenCV, it was programmed by ourselves through...
As an important component of passive media forensics (PMF), content-based copy detection (CBCD) is appropriate for identifying piracy of digital content and preventing falsified evidence. In this paper, we propose a novel and efficient CBCD scheme for identifying different altered versions of original images. We employ singular value decomposition (SVD) and block partition to improve the robustness...
Knowing the temporal change of the seabed, we can understand the nature of the undersea environment in more details. The scale of the features on the seabed varies from meters for large sandwaves, and down to less than one millimeter for the prints left by marine creatures. So far, there is not a single instrument that can cover the whole range and still preserve the resolution. For measuring small-scale...
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