In this paper, an authenticate live 3D point cloud video streaming system is presented, using a low cost 3D sensor camera, the Microsoft Kinect. The proposed system is implemented on a client-server network infrastructure. The live 3D video is captured from the Kinect RGB-D sensor, then a 3D point cloud is generated and processed. Filtering and compression are used to handle the spatial and tem...

The traditional methods of image assessment, such as mean squared error (MSE), signal-to-noise ratio (SNR), and Peak signal-to-noise ratio (PSNR), are all based on the absolute error of images. Pearson’s inner-product correlation coefficient (PCC) is also usually used to measure the similarity between images. Structural similarity (SSIM) index is another important measurement which has been sho...

This article describes a Qt-based C++ application for full-reference stereoscopic video quality assessment, which is platform independent and provides a friendly graphical user interface. The stereoscopic video signals used in the application are based on a two-view model, such as the H.264/AVC standard in the Multiview Video Coding (MVC) profile. In addition, several spatial resolutions are av...

Wiener filter is widely used for image denoising and restoration. It is alternatively known as the minimum mean square error filter or the least square error filter, since the objective function used in Wiener filter is an age-old benchmark called the Mean Square Error (MSE). Wiener filter tries to approximate the degraded image so that its objective function is optimized. Although MSE is consi...

Facial recognition is one of the most challenging and interesting problems within the field of computer vision and pattern recognition. During the last few years, it has gained special attention due to its importance in relation to current issues such as security, surveillance systems and forensics analysis. Despite this high level of attention to facial recognition, the success is still limite...

This is a supplement to our paper, “NTIRE 2017 Challenge on Single Image Super-Resolution: Dataset and Study” [1]. We report results for the top challenge methods [10]: SNU CVLab1 [6], SNU CVLab2 [6], Lab402 [2] and HelloSR [10] in comparison with VDSR [5] and A+ [12]. We use the classic setup (bicubic downscaling) of the challenge and report PSNR, SSIM [9], IFC [8], and CORNIA [13] results com...

In this paper, we propose a viewing direction based least significant bit (LSB) data hiding method for 360° videos. The distributions of frequency latitude and longitude are used to control the amount secret be hidden at latitude, longitude, or both Normalized Gaussian mixture models mimicking behavior humans formulated define weight functions longitude. On basis, analytical expressions capacit...

The fact that multimedia services have become the major driver for next generation wireless networks underscores their technological and economic impact. A vast majority of these multimedia services are consumer-centric and therefore must guarantee a certain level of perceptual quality. Given the massive volumes of image and video data in question, it is only natural to adopt automatic quality ...