Search for dissertations about: "Image alignment"

Showing result 1 - 5 of 143 swedish dissertations containing the words Image alignment.

2. 1. Methods for Reliable Image Registration : Algorithms, Distance Measures, and Representations

   Author : Johan Öfverstedt; Natasa Sladoje; Mattias Heinrich; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Image registration; alignment; local optimization; global optimization; mutual information; normalized gradient fields; representation learning; Computerized Image Processing; Datoriserad bildbehandling;

   Abstract : Much biomedical and medical research relies on the collection of ever-larger amounts of image data (both 2D images and 3D volumes, as well as time-series) and increasingly from multiple sources. Image registration, the process of finding correspondences between images based on the affinity of features of interest, is often required as a vital step towards the final analysis, which may consist of a comparison of images, measurement of movement, or fusion of complementary information. READ MORE

4. 2. From Theory to Practice of Business-IT Alignment : Barriers, an Evaluation Framework and Relationships with Organisational Culture

   Author : Mohamed Sobih Aly El-Mekawy; Lazar Rusu; Wim Van Grembergen; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; business-IT alignment; organisational culture; strategic alignment; barriers to business-IT alignment; business-IT alignment evaluation framework; business-IT alignment-organisational culture integrated view; Computer and Systems Sciences; data- och systemvetenskap;

   Abstract : Business-IT alignment (BITA) continues to be a top management concern. It generally refers to a preferred condition in which the relationship between business and IT is optimised to maximise the business value of IT. Early approaches in both research and practice have focused on the role of IT in supporting business strategies. READ MORE

5. 3. Improving IT Integration for Higher Education Institutional Performance : Towards a Contextualised IT-Institutional Alignment Model

   Author : Jean Claude Byungura; Henrik Hansson; Ulf Olsson; Masengesho Kamuzinzi; Jimmy Jaldemark; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; IT integration; IT alignment; Alignment practices; Design science research; Innovation diffusion; Technology adoption; Institutional performance; Higher education; Artefact Evaluation; Computer and Systems Sciences; data- och systemvetenskap;

   Abstract : The integration of information technology (IT) into service delivery is currently seen as an innovative strategy to support the modernising of universities worldwide. However, in some institutions in developing countries, including Rwanda, IT has failed to add the intended value to university services, despite huge associated investments in IT. READ MORE

6. 4. Haptics with Applications to Cranio-Maxillofacial Surgery Planning

   Author : Pontus Olsson; Ingrid B. Carlbom; Blake Hannaford; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; medical image processing; haptics; haptic rendering; haptic gripper; visuo-haptic co-location; vibrotactile feedback; surgery simulation; virtual surgery planning; cranio-maxillofacial surgery; Computerized Image Processing; Datoriserad bildbehandling;

   Abstract : Virtual surgery planning systems have demonstrated great potential to help surgeons achieve a better functional and aesthetic outcome for the patient, and at the same time reduce time in the operating room resulting in considerable cost savings. However, the two-dimensional tools employed in these systems today, such as a mouse and a conventional graphical display, are difficult to use for interaction with three-dimensional anatomical images. READ MORE

7. 5. Towards Joint Super-Resolution and High Dynamic Range Image Reconstruction

   Author : Tomas Bengtsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Super-resolution; Dynamic range; Human visual system; Inverse problem; Image reconstruction; Spatial alignment; Photometric alignment; Digital camera system;

   Abstract : The main objective for digital image- and video camera systems is to reproduce a real-world scene in such a way that a high visual quality is obtained. A crucial aspect in this regard is, naturally, the quality of the hardware components of the camera device. There are, however, always some undesired limitations imposed by the sensor of the camera. READ MORE