Sökning: "aided detection"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden aided detection.

  1. 1. Resampling Evaluation of Signal Detection and Classification : With Special Reference to Breast Cancer, Computer-Aided Detection and the Free-Response Approach

    Författare :Anna Bornefalk Hermansson; Rolf Larsson; Ulf Olsson; Dankmar Böhning; Uppsala universitet; []
    Nyckelord :Statistics; breast cancer; trend modelling; FROC; confidence intervals; threshold independence; bootstrap; kernel density estimation; mammography; computer-aided detection; Statistik;

    Sammanfattning : The first part of this thesis is concerned with trend modelling of breast cancer mortality rates. By using an age-period-cohort model, the relative contributions of period and cohort effects are evaluated once the unquestionable existence of the age effect is controlled for. LÄS MER

  3. 2. Computer-aided detection and novel mammography imaging techniques

    Författare :Hans Bornefalk; Mats Danielsson; Robert Nishikawa; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; computer-aided detection; FROC; mammography; optimal operating points; single-shot dual-energy imaging; Radiological physics; Radiofysik;

    Sammanfattning : This thesis presents techniques constructed to aid the radiologists in detecting breast cancer, the second largest cause of cancer deaths for western women. In the first part of the thesis, a computer-aided detection (CAD) system constructed for the detection of stellate lesions is presented. LÄS MER

  4. 3. On the design of systems for computer aided analysis of microscopic images : application to early detection of cervical cancer

    Författare :Ewert Bengtsson; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 4. Phase-Noise Compensation for Space-Division Multiplexed Multicore Fiber Transmission

    Författare :Arni Alfredsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; detection; estimation; space-division multiplexing.; phase noise; multicore fiber; Coherent fiber-optic communications;

    Sammanfattning : The advancements of popular Internet-based services such as social media, virtual reality, and cloud computing constantly drive vendors and operators to increase the throughput of the Internet backbone formed by fiber-optic communication systems. Due to this, space-division multiplexing (SDM) has surfaced as an appealing technology that presents an opportunity to upscale optical networks in a cost-efficient manner. LÄS MER

  7. 5. Compensation of Laser Phase Noise Using DSP in Multichannel Fiber-Optic Communications

    Författare :Arni Alfredsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; multichannel transmission; rotations; digital signal processing; laser phase noise; Coherent fiber-optic communications; detection; estimation;

    Sammanfattning : One of the main impairments that limit the throughput of fiber-optic communication systems is laser phase noise, where the phase of the laser output drifts with time. This impairment can be highly correlated across channels that share lasers in multichannel fiber-optic systems based on, e.g. LÄS MER