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In this work, we are presenting a technique that allows for accurate estimation of frequencies in higher dimensions than the original image content. This technique uses asymmetrical Principal Component Analysis together with Discrete Wavelet Transform (aPCA-DWT). For example, high quality content can be generated from low quality cameras since the necessary frequencies can be estimated through reliable...
We propose a method for hiding the identity of persons and objects in video sequences. This type of video sequence will be used in applications where the scene is important but the identity of persons should be unrecognizable, e.g., street view applications. Other parts, such as company logos, names on house doors or license plates on parked cars should not be recognizable as well. This is today solved...
Huge efforts have been devoted to face recognition technology and remarkable results, noticed. Such advances will provide us the possibility to build a new generation of search engine: persons photo fetching. It is a real computing challenge to find a person from a very large or extremely large database which might hold face images of millions or hundred millions of people. A candidate solution is...
Great progress in face recognition technology has been made recently. Such advances will provide us the possibility to build a new generation of search engine: Face Google, searching from person photos. It is very challenging to find a person from a very large or extremely large database which might hold face images of millions or hundred millions of people. The indexing technology used in most commercial...
High dynamic range (HDR) imaging has become a topic of intense research interest in the fields of computer vision and computer graphics in recent years. Commonly a HDR radiance map of a large range scene is recovered from a set of photos taken with conventional imaging equipment at different exposures. Once a HDR map has been computed, one can apply a tone mapping technique to compress the HDR luminances...
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