The Era of Interactive Media - download pdf or read online

By Jesse S. Jin, Changsheng Xu, Min Xu

ISBN-10: 1461435005

ISBN-13: 9781461435006

ISBN-10: 1461435013

ISBN-13: 9781461435013

Interactive Media is a brand new learn box and a landmark in multimedia improvement. The period of Interactive Media is an edited quantity contributed from international specialists operating in academia, study associations and industry.

The period of Interactive Media focuses quite often on Interactive Media and its a number of functions. This booklet additionally covers multimedia research and retrieval; multimedia protection rights and administration; multimedia compression and optimization; multimedia verbal exchange and networking; and multimedia structures and purposes.

The period of Interactive Media is designed for a certified viewers composed of practitioners and researchers operating within the box of multimedia. Advanced-level scholars in machine technological know-how and electric engineering also will locate this booklet beneficial as a secondary textual content or reference.

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1 Cropped Region Estimation The peak position of a given correlation plane is equal to the left top point of cropped region. This fact is used to detect the cropped region. If the estimated ^ the position of the peak is (xl, yt), and the size of test video is scaling factor is N, R ÂC, the right down point of the cropped region (xr, yd) is calculated as follows. 2   1 1 xl þ Â C; yt þ Â R N^ N^ (11) Partially Manipulated Region Estimation If the surveillance video is partially manipulated, the manipulated region will have weak energy of SPN or not be synchronized with the RSPN.

We also compared the proposed method with Chen’s method [1]. To decide identification threshold tpce, we calculated PCE values among RSPNs which represent each surveillance camera and TSPNs from every test video. Figure 6 depicts ROC curves compiled from all the pairs with different tpce. 5%. Moreover, the ROC curves indicate that the proposed algorithm is indeed more robust to false alarms than Chen’s method. 5% for each scaling factor. The bigger scaling factor, the smaller region is cropped from the video.

We assume here that the portion of the image that underwent modifications is relatively small with regards to the surface of the whole picture. e. the Dresden database) that makes possible further comparisons of our algorithm with other approaches. Keywords Digital image forensic • Image authentication • Forgeries detection • Sensor noise. W. -L. S. 1007/978-1-4614-3501-3_4, # Springer Science+Business Media, LLC 2013 37 38 W. -L. Dugelay 1 Introduction In today’s digital age, images and videos play a vital role in several applications like video surveillance, news, social networks, etc.

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The Era of Interactive Media by Jesse S. Jin, Changsheng Xu, Min Xu


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