Advances in Multimedia Information Processing – PCM 2015: by Yo-Sung Ho, Jitao Sang, Yong Man Ro, Junmo Kim, Fei Wu

By Yo-Sung Ho, Jitao Sang, Yong Man Ro, Junmo Kim, Fei Wu

The two-volume court cases LNCS 9314 and 9315, represent the complaints of the 16th Pacific-Rim convention on Multimedia, PCM 2015, held in Gwangju, South Korea, in September 2015.

The overall of 138 complete and 32 brief papers awarded in those lawsuits was once conscientiously reviewed and chosen from 224 submissions. The papers have been equipped in topical sections named: snapshot and audio processing; multimedia content material research; multimedia functions and providers; video coding and processing; multimedia illustration studying; visible realizing and popularity on mammoth facts; coding and reconstruction of multimedia information with spatial-temporal details; 3D image/video processing and purposes; video/image caliber evaluation and processing; social media computing; human motion attractiveness in social robotics and video surveillance; contemporary advances in image/video processing; new media illustration and transmission applied sciences for rising UHD prone.

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Additional resources for Advances in Multimedia Information Processing – PCM 2015: 16th Pacific-Rim Conference on Multimedia Gwangju, South Korea, September 16–18, 2015, Proceedings, Part II

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S. Ho et al. ): PCM 2015, Part II, LNCS 9315, pp. 24–32, 2015. 1007/978-3-319-24078-7_3 Synthesized Views Distortion Model Based Rate Control in 3D-HEVC 25 synthesized virtual views. The coding quality of synthesized views depends on the quality of texture video and depth maps [7]. As such, it is important to balance the bit allocation for texture video and depth maps to get better quality of synthesized views. And many other techniques are adopted to improve the coding performance. All these techniques bring great challenges to establish an accurate rate distortion (R-D) model and bit allocation scheme in rate control for 3D-HEVC.

Each sequence is composed of three views: the left, the center (coded first) and the right view. After coding, six synthesized views were rendered. 1 Control Accuracy To evaluate the accuracy of the bit rate control, the following measurement is adopted. Error ¼   Ractual À Rtarget  Rtarget  100%; ð17Þ where Error is the bits error. Rtarget and Ractual are the number of target bits and the actual output bits, respectively. As illustrated in Table 1, it can be seen that the proposed RC algorithm achieves smaller mismatch between target bits and actual output bits.

The JBU uses both a spatial weighting function and a color weighting function evaluated on the data values. However, JBU causes a texture copying problem. Standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data in image. Therefore, it includes an edge information in the each kernel. In the proposed method, we decrease the texture copying problem of the upsampled depth map by using adaptive weighting functions are chosen by the edge information.

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Advances in Multimedia Information Processing – PCM 2015: by Yo-Sung Ho, Jitao Sang, Yong Man Ro, Junmo Kim, Fei Wu
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