In this paper, we propose a novel and simple (2, n) secret sharing scheme with precise reconstruction for grayscale, binary and color image. The share construction phase is based on pixel division and XOR operation. The reconstruction is based on XOR and OR operation. The proposed scheme has no pixel expansion and can reconstruct the secret image precisely. This scheme can be directly applied t...

Depth-image-based-rendering (DIBR) is a popular method of synthesizing new views of scenes using traditional images accompanied by depth maps. However these new view suffer from disocclusion holes ‒ background areas revealed by the viewpoint change which have no image or depth data. The filling of disocclusion holes has been an area of development since 2011. This paper seeks to further develop...

M.G. Davies et al. (eds.), Pumps and Pipes: Proceedings of the Annual Conference, DOI 10.1007/978-1-4419-6012-2_3, © Springer Science+Business Media, LLC 2011 Abstract Real-time image guidance will eventually facilitate a paradigm shift from the traditional endoscopic visualization to one that uses a volumetric and information-rich perception of the area-of-operation, thereby enabling a wider r...

The study examined the relationships between out-group perception, perceived intergroup conflict, emotions, and concern for out-group victims in the context of the Japanese earthquake of 2011. Six hundred and eighty-six participants in China completed a questionnaire immediately after the earthquake. Results showed that the image of Japan and historical conflicts between the two nations signifi...

Conventional 3D x-ray imaging systems, like CTs and 3D C-arms, are characterized by a circular movement of x-ray source and image detector around the patient. Using this technique the radiographed volume is reconstructed accurately, but the patient is fully enclosed and the access for the surgeon is limited. To improve the usability of intraoperative 3D imaging, we developed a new image acquisi...

Breast cancer is by far the most frequent cancer among women with an estimated 1.38 million new cancer cases diagnosed in 2008 (23% of all cancers), and ranks second overall (10.9% of all cancers). It is now the most common cancer both in developed and developing regions with around 690 000 new cases estimated in each region (population ratio 1:4) (IARC, 2008). It is estimated most of the breas...

Figure 6. T2*W images of a breast tumour. (a-c) Sagittal T2W (a), dynamic contrast-enhanced (DCE) subtracted image at time point 2.44 minutes (b), and T2*W image (c) in a patient with a palpable breast lump in the upper outer quadrant. The tumour seen in (a) and highlighted in (b) shows heterogeneity of T2* with faster signal decay in the inferior part of the tumour, indicating a greater deoxyh...

In 1984, Johnson and Lindenstrauss proved that any finite set of data in a high-dimensional space can be projected to a lower-dimensional space while preserving the pairwise Euclidean distance between points up to a bounded relative error. If the desired dimension of the image is too small, however, Kane, Meka, and Nelson (2011) and Jayram and Woodruff (2013) independently proved that such a pr...

The primal-dual optimization algorithm developed in Chambolle and Pock (CP) (2011 J. Math. Imag. Vis. 40 1-26) is applied to various convex optimization problems of interest in computed tomography (CT) image reconstruction. This algorithm allows for rapid prototyping of optimization problems for the purpose of designing iterative image reconstruction algorithms for CT. The primal-dual algorithm...

Miettinen, Oskari Challenges for Growth in Small Finnish Software Firms: A Multiple-Case Study/ Oskari Miettinen Jyväskylä: University of Jyväskylä, 2009. 88 p. Based on a literature review and an empirical research, a growth challenge model for small Finnish software frms is introduced. The literature review covers such topics as research on growth of a frm, reasons, and ways to grow, and vari...