Browsing Computation by Author "Gastal, Eduardo Simões Lopes"

Now showing items 1-4 of 4

    • An offline writer independent signature verification method with robustness against scalings and rotations 

      Pachas, Felix Eduardo Huaroto (2022) [Dissertation]
      Handwritten signatures are still one of the most used and accepted methods for user au thentication. They are used in a wide range of human daily tasks, including applications from banking to legal processes. The signature ...

    • Efficient high-dimensional filtering for image and video processing 

      Gastal, Eduardo Simões Lopes (2015) [Thesis]
      Filtering is arguably the single most important operation in image and video processing. In particular, high-dimensional filters are a fundamental building block for several applications, having recently received considerable ...

    • Optimal prefilters for display enhancement 

      Rocha, Luís Cláudio Gouveia (2020) [Dissertation]
      Creating images from a set of discrete samples is arguably the most common operation in computer graphics and image processing, lying, for example, at the heart of rendering and image downscaling techniques. Traditional ...

    • Real-time frequency adjustment of images and videos 

      Germano, Rafael Lucena (2021) [Dissertation]
      We present a technique for real-time adjustment of spatial frequencies in images and videos. Our method allows for both decreasing and increasing of frequencies, and is orthogonal to image resizing. Thus, it can be used ...