Essays about: "segmentation"

Showing result 1 - 5 of 783 essays containing the word segmentation.

  1. 1. ATLAS-BASED SEGMENTATION OF ULTRAHIGH-RESOLUTION STRUCTURAL MR HEAD IMAGES ACQUIRED AT 7 TESLA

    University essay from

    Author : Frida Johansson; [2022-01-13]
    Keywords : Medical physics; Anatomical segmentation; Brain; MRI; 7 Tesla; Pincram; MAPER; Shape based averaging; Ultrahigh resolution;

    Abstract : Purpose: The purpose of this work was to find out how the existing brain atlases and segmentation algorithms perform when applied to ultrahigh-resolution MR brain images, acquired with a 7-Tesla scanner. Also to make adaptations to deal with the potential challenges and evaluate the quality of the anatomical segmentations of the 7- Tesla images. READ MORE

  2. 2. Establishment of a deep learning algorithm for dosimetry of radiopharmaceuticals

    University essay from

    Author : Dennis Lipnicevic; [2022-01-13]
    Keywords : Medical physics; automated segmentation; dosimetry; kidney; nuclear medicine dosimetry; deep learning; convolutional neural network;

    Abstract : Purpose: The aim of this study was to introduce a volumetric convolutional neural network for segmentation of the kidneys in SPECT images and to apply it in the dosimetry of radiopharmaceuticals of this organ, in order to decrease segmentation time and to standardize the segmentation of the kidneys. Method: Three networks were trained using two network architectures and a total of 216 retrospectively collected images from patients that underwent imaging procedures at Sahlgrenska University Hospital between 2009 and 2018. READ MORE

  3. 3. Automatic 3D Segmentation in CT images of Congenital Heart Defects using Deep Learning

    University essay from Lunds universitet/Matematik LTH

    Author : Matilda Dahlström; [2022]
    Keywords : Technology and Engineering;

    Abstract : 3D segmentations of hearts with congenital heart defects are routinely used today. They are used to study hearts and to prepare before surgery which makes them an important part of patient care. The 3D segmentations are usually created manually, which is a time-consuming process. READ MORE

  4. 4. AATrackT: A deep learning network using attentions for tracking fast-moving and tiny objects : (A)ttention (A)ugmented - (Track)ing on (T)iny objects

    University essay from Jönköping University/JTH, Avdelningen för datavetenskap

    Author : Fredric Lundberg Andersson; [2022]
    Keywords : Machine learning; Computer vision; Visual tracking; Attentions; Tiny fast-moving object;

    Abstract : Recent advances in deep learning have made it possible to visually track objects from a video sequence. Moreover, as transformers got introduced in computer vision, new state-of-the-art performances were achieved in visual tracking. READ MORE

  5. 5. How Does An Entrepreneur Create A Born Global Firm? : A Case Study Of A Swedish Start-Up Trying To Enter The Indian Market.

    University essay from Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Author : Luzia Martins Liberio Coelho; Alena Fridrichova; [2022]
    Keywords : Born global; Sweden; International entrepreneurship; Entrepreneurial process action; Internationalisation; Effectuation; Causation; Opportunity perception; Indian market; Business model canvas;

    Abstract : Purpose - The purpose of this study is to assess the process of early pre-internationalised and pre-market established born global company and to provide viable advice as to how to internationalise the Indian market which is psychically and geographically distant from the Swedish market. Design/methodology/approach - This study follows a qualitative research approach with an inductive single case study design in order to examine in-depth the Swedish start-up, TurtleCare AB, throughout its internationalisation process. READ MORE