When installing or uninstalling Visual Studio 2012/2013, the installer might get stuck right at the beginning:
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Sometimes, this site goes down, and the following homepage appears: The jos_session gets corrupted, a frequent issue with Joomla 1.5.x installations. Luckily, fixing this issue is quite simple, just log into the phpMyAdmin site (usually at the following address: http://www.mywebsite.com/phpMyAdmin) and open the joomla database Locate the jos_session table, then…
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After the map updates on mid-May, both the HERE Maps and Drive apps for Windows Phone 8 stopped working, even worse, launching them made the phone reboot. The obvious fix would be an hard reset of the phone, but that would mean a lot of work, backing up everything. Here…
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In Visual Studio 2012, after installing Installshield LE 2012, you can include setup projects into your solution, as shown below: Adding the Setup project to the solution, and including it into the Release configuration, makes for a quick, 1-click compilation procedure of both the main app and the installer. Still,…
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In a previous post, Unit testing with Visual C++ 2012, the unit testing features of Visual Studio 2012 were shown to be an effective way to improve software quality by introducing various tests. Still, instead of having to run these tests inside the Visual Studio IDE, it would be even…
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The ViBe algorithm In the paper “ViBe: A universal background subtraction algorithm for video sequences“, Olivier Barnich and Marc Van Droogenbroeck introduce several innovative mechanisms for motion detection: Pixel model and classification process Let’s denote by v(x) the value in a given Euclidean color space taken by the pixel located…
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Performance map Adaptive SOM of Maddalena and Petrosino (2008) paper link {youtube}o7VdgyoxPgA{/youtube} Detection of moving objects in video streams is the first relevant step of information extraction in many computer vision applications. Aside from the intrinsic usefulness of being able to segment video streams into moving and background components, detecting…
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Performance map Eigenbackground / SL-PCA of Oliver et al (2000) paper link {youtube}4c1lLY3ta08{/youtube} We describe a real-time computer vision and machine learning system for modeling and recognizing human behaviors in a visual surveillance task [1]. The system is particularly concerned with detecting when interactions between people occur and classifying the…
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Performance map Pixel-Based Adaptive Segmenter (PBAS) of Hofmann et al (2012) paper link {youtube}DjCLUQg4dow{/youtube} In this paper we present a novel method for foreground segmentation. Our proposed approach follows a non-parametric background modeling paradigm, thus the background is modeled by a history of recently observed pixel values. The foreground decision…
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Performance map Texture BGS of Heikkila et al. (2006) paper link {youtube}7Ie05V-bBhQ{/youtube} This paper presents a novel and efficient texture-based method for modeling the background and detecting moving objects from a video sequence. Each pixel is modeled as a group of adaptive local binary pattern histograms that are calculated over…