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Sökning: L4X0:0302 9743 > Blekinge Tekniska Högskola

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1.
  • Oliinyk, O., et al. (författare)
  • Metrics for the evaluation of feature models in an industrial context : A case study at opel
  • 2015
  • Konferensbidrag (refereegranskat)abstract
    • [Context & motivation] Feature models are used in product line engineering to document possible product configurations on the feature level. [Problem] In order to quantify the success of adopting feature modeling in practice, we need to understand the industry relevant metrics for feature model evaluation. [Solution] In order to identify the metrics a Goal-Question-Metric approach was used in the context of a case study conducted at Adam Opel AG. [Contribution:] We identified seven goals (quality criteria) we should strive for and evaluate when using feature models. Furthermore, we identified 18 sub-goals, 27 questions and corresponding metrics. The metrics were used to reflect on the feature modeling conducted at the company. © Springer International Publishing Switzerland 2015.
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2.
  • Wen, Wei, 1983-, et al. (författare)
  • Novel Software-based Method to Widen Dynamic Range of CCD Sensor Images
  • 2015
  • Konferensbidrag (refereegranskat)abstract
    • In the past twenty years, CCD sensor has made huge progress in improving resolution and low-light performance by hardware. However due to physical limits of the sensor design and fabrication, fill factor has become the bottle neck for improving quantum efficiency of CCD sensor to widen dynamic range of images. In this paper we propose a novel software-based method to widen dynamic range, by virtual increase of fill factor achieved by a resampling process. The CCD images are rearranged to a new grid of virtual pixels com-posed by subpixels. A statistical framework consisting of local learning model and Bayesian inference is used to estimate new subpixel intensity. By knowing the different fill factors, CCD images were obtained. Then new resampled images were computed, and compared to the respective CCD and optical image. The results show that the proposed method is possible to widen significantly the recordable dynamic range of CCD images and increase fill factor to 100 % virtually.
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