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Line segments are powerful features complementary to points. They offer structural cues, robust to drastic viewpoint and illumination changes, and can be present even in texture-less areas. However, describing and matching them is more challenging compared to points due to partial occlusions, lack of texture, or repetitiveness. This paper introduces a new matching paradigm, where points, lines, an
In this paper we introduce the Tangent Sampson error, which is a generalization of the classical Sampson error in two-view geometry that allows for arbitrary central camera models. It only requires local gradients of the distortion map at the original correspondences (allowing for pre-computation) resulting in a negligible increase in computational cost when used in RANSAC or local refinement. The
In contrast to sparse keypoints, a handful of line segments can concisely encode the high-level scene layout, as they often delineate the main structural elements. In addition to offering strong geometric cues, they are also omnipresent in urban landscapes and indoor scenes. Despite their apparent advantages, current line-based reconstruction methods are far behind their point-based counterparts.
CONTEXT: Uptake of organic farming falls short of stated sustainability targets, particularly in highly productive regions where adoption could mitigate environmental impacts of intensive farming. Several hypotheses have been advanced to explain the constraints on adoption, but these have not been assessed within an integrative, interdisciplinary framework.OBJECTIVE: The objective was to develop a
Context: Organic farming aims to make agriculture more sustainable, but its sustainability benefits may be offset by lower yields compared to conventional farming. Avenues to increase organic yields have been studied extensively, but there is a lack of research using integrated approaches that consider co-variation between different organic management practices within commercial farming systems. M
Problematic internet use (PIU) has been linked to adverse outcomes in adolescence, but its association with child-to-parent violence (CPV) has rarely been examined. This study investigated whether problematic social media use and problematic gaming were associated with CPV in a school-based sample of Swedish adolescents and young adults. In bivariate analyses, both PIU domains showed dose-responseProblematic internet use (PIU) has been linked to adverse outcomes in adolescence, but its association with child-to-parent violence (CPV) has rarely been examined. This study investigated whether problematic social media use and problematic gaming were associated with CPV in a school-based sample of Swedish adolescents and young adults. In bivariate analyses, both PIU domains showed dose-response
Addressing global water crises demands effective communication across diverse audiences, especially in initiatives such as the scientific decade HELPING by the International Association of Hydrological Sciences (IAHS). This study synthesizes insights from the hydrological community, gathered through interviews, workshops and a digital survey. We identify key challenges and best practices across th
In this letter, the first measurement of the femtoscopic correlation of protons and Σ+ hyperons is presented and used to study the p–Σ+ interaction. The measurement is performed with the ALICE detector in high-multiplicity triggered pp collisions at s=13 TeV. The Σ+ hyperons are reconstructed using a missing-mass approach in the decay channel to p+π0 with π0→γγ, while both Σ+ and protons are ident
BackgroundIn the event of a major incident, collaboration between the ambulance service, fire brigade and police is common. Effective collaboration requires teamwork, with communication between the three organisations being crucial. Leadership functions should be integrated in a way that leverages organisation-specific capabilities, enabling interprofessional collaboration where diverse profession
BackgroundAmbulance clinicians increasingly refer patients to self-care, positioning ambulance service within a wider gatekeeping role and necessitating the assessment of whether self-care is a safe option or if further support is needed. Contrary to primary healthcare centre (PHC) referrals, self-care referrals often lack structured follow-ups, with the decision consequences remaining underexplor
The vertebrate skull originates from two embryonic lineages, the mesoderm and the neural crest, offering a unique framework to study how developmental mechanisms connect phenotypic variation and evolutionary diversification. Using 3D geometric morphometrics, we analysed skull shape variation in lacertid lizards. Mesoderm- and neural crest-derived bones formed two distinct, conserved modules at bot
Background Type 1 diabetes begins with autoimmunity against pancreatic islet antigens, including insulin. The aim of the Primary Oral Insulin Trial (POInT) was to evaluate the efficacy and safety of daily high-dose oral insulin to prevent the development of islet autoantibodies and diabetes. Methods In this randomised, controlled, primary prevention trial, genetic screening in seven obstetric and
T.M. Scanlon’s version of contractualism has emerged as one of the most well-developed challengers to consequentialism. According to one of contractualism’s most appealing features—the Individualist Restriction—the justifiability of our actions depends solely on the personal reasons of single individuals. While it allows contractualism to avoid many of consequentialism’s most implausible implicati
Background The COVID-19 pandemic has underlined the essential role of primary healthcare (PHC) in epidemiological surveillance and public health decision-making. Across Europe, the integration of electronic health records (EHRs) and the sentinel networks have been pivotal in monitoring COVID-19. However, the lack of standardized PHC indicators for COVID-19 hinders the comparability of data among c
