This contribution motivates and proposes the new idea of embedding and hiding a highlighting of particular regions within a raster image. Existing approaches tightly combine content and means for highlighting, and thus, do not allow access control to the emphasized contents or a removal of the accentuation. This is overcome by the introduced approach taking advantage of the Depth of Field effec...

Abstract : This paper presents a lossless image coding approach that produces an embedded bit−stream optimized for L−infinity−constrained decoding. The decoder is implementable using only integer arithmetic and is able to deduce from the bit−stream the L−infinity error that affects the reconstructed image at an arbitrary point of decoding. The lossless coding performance is compared with JPEG−L...

Projects can cause organizations to perform in new ways resulting in the generation of knowledge. Project learning occurs when new knowledge is captured, disseminated, and used by the project team. Y2K utility projects were studied with respect to knowledge benefits and management. Projects from developed countries using western technology were found to have knowledge benefits but their organiz...

There are many commercial tools that address various aspects of the Year 2000 problem. None of these tools, however, make any documented use of plan-based techniques for automated concept recovery. This implies a general perception that plan-based techniques is not useful for this problem. This paper argues that this perception is incorrect and these techniques are in fact mature enough to make...

∗ Corresponding author. Fax: +30 61 997456 Email addresses: [email protected] (A.N. Skodras), [email protected] (C.A. Christopoulos), [email protected] (T. Ebrahimi). Abstract: With the increasing use of multimedia technologies, image compression requires higher performance as well as new features. To address this need in the specific area of still image encoding, a ne...

For the first time, a complete wireless and mobile emergency TeleOrthoPaedics system with field trials and expert opinion is presented. The system enables doctors in a remote area to obtain a second opinion from doctors in the hospital using secured wireless telecommunication networks. Doctors can exchange securely medical images and video as well as other important data, and thus perform remot...