Enhancement of Background Subtraction Techniques Using a Second Derivative in Gradient Direction Filter

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="598708.fig.004a" src="https://static-preview.hindawi.com/articles/jece/volume-2013/598708/figures/598708.fig.004a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b> Original image</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="598708.fig.004b" src="https://static-preview.hindawi.com/articles/jece/volume-2013/598708/figures/598708.fig.004b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b> Ground truth image</td></tr></table></td></tr></table>

<table>Original image and its ground truth of a frame in B1 for an indoor environment.</table>

Journal of Electrical and Computer Engineering

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Figure 4

Figure 4: Enhancement of Background Subtraction Techniques Using a Second Derivative in Gradient Direction Filter 