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Time filter

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Tokyo, Japan

Jung S.-W.,Advanced Media
IEEE Transactions on Image Processing | Year: 2013

The just noticeable depth difference (JNDD) describes the threshold of human perception of the difference in the depth. In flat-panel-based three-dimensional (3-D) displays, the JNDD is typically measured by changing the depth difference between displayed image objects until the difference is perceivable. However, not only the depth, but also the perceived size changes when the depth difference increases. In this paper, we present a modified JNDD measurement method that adjusts the physical size of the object such that the perceived size of the object is maintained. We then apply the proposed JNDD measurement method to depth sensation enhancement. When the depth value difference between the objects is increased to enable the viewer to perceive the depth difference, the size of the objects is adjusted to maintain the perceived size of the objects. In addition, since the size change of the objects can produce a whole region, a depth-adaptive hole-inpainting technique is proposed to compensate for the hole region with high accuracy. The experimental results demonstrate the effectiveness of the proposed method. © 1992-2012 IEEE. Source


Jung S.-W.,Advanced Media
IEEE Transactions on Circuits and Systems for Video Technology | Year: 2013

In this paper, we present an adaptive joint trilateral filter (AJTF), which consists of domain, range, and depth filters. The AJTF is used for the joint enhancement of images and depth maps, which is achieved by suppressing the noise and sharpening the edges simultaneously. For improving the sharpness of the image and depth map, the AJTF parameters, the offsets, and the standard deviations of the range and depth filters are determined in such a way that image edges that match well with depth edges are emphasized. To this end, pattern matching between local patches in the image and depth map is performed and the matching result is utilized to adjust the AJTF parameters. Experimental results show that the AJTF produces sharpness-enhanced images and depth maps without overshoot and undershoot artifacts, while successfully reducing noise as well. A comparison of the performance of the AJTF with those of conventional image and depth enhancement algorithms shows that the proposed algorithm is effective. © 1991-2012 IEEE. Source


Lee S.,Advanced Media | Liu Y.,Pennsylvania State University
IEEE Transactions on Pattern Analysis and Machine Intelligence | Year: 2012

We generalize the concept of bilateral reflection symmetry to curved glide-reflection symmetry in 2D euclidean space, such that classic reflection symmetry becomes one of its six special cases. We propose a local feature-based approach for curved glide-reflection symmetry detection from real, unsegmented 2D images. Furthermore, we apply curved glide-reflection axis detection for curved reflection surface detection in 3D images. Our method discovers, groups, and connects statistically dominant local glide-reflection axes in an Axis-Parameter-Space (APS) without preassumptions on the types of reflection symmetries. Quantitative evaluations and comparisons against state-of-the-art algorithms on a diverse 64-test-image set and 1,125 Swedish leaf-data images show a promising average detection rate of the proposed algorithm at 80 and 40 percent, respectively, and superior performance over existing reflection symmetry detection algorithms. Potential applications in computer vision, particularly biomedical imaging, include saliency detection from unsegmented images and quantification of deviations from normality. We make our 64-test-image set publicly available. © 2012 IEEE. Source


The MOBILE CONTENT TRACKING PLATFORM METHODS (Mobile-Track) transforms TV program schedule listing information and user channel selection via Mobile-Track components, into TV audience viewing data and ad effects data. A method is disclosed, comprising: obtaining TV program schedule listing data; providing the obtained TV program schedule listing data to a user mobile device; receiving an indication of user channel selection; determining a media program associated with the received indication of user channel selection; determining an ad associated with the determined media program; providing a survey question related to the determined ad to the user mobile device; and receiving a user response to the survey question.


The Audience Content Exposure Monitoring Apparatuses, Methods and Systems (ACEM) transforms pulsing request (e.g.,

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