1,720,956 research outputs found
Method for transforming a coloured image
No full textThe invention relates to a method of transforming a colour image, wherein for each separate pixel a measured level of lightness, a measured chroma and a measured colour is determined, followed by a predetermined adjustment in the three-dimensional level of lightness, chroma and colour, wherein a. for each separate pixel a direction of adjustment is determined by selection of a three-dimensional adjustment level for lightness, chroma and colour change, b. and in that at the three-dimensional adjustment level selected the maximum available lightness change is determined, whereafter c.; for each separate pixel the measured lightness level, the measured chroma and the measured colour is changed in the direction of the selected three-dimensional adjustment level in concurrence with a predetermined function, which at most amounts to the maximum available lightness change at the selected three-dimensional adjustment level.Applied Science
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Apparatus and method for determining the three-dimensional shape of an object
No full textThe invention relates to an apparatus for determining a three-dimensional shape of an object from a two-dimensional image, comprising a light source for illuminating the object, and a detector for forming an image of the illuminated object, wherein the light source emits a pattern of substantially needle-like light beams that are directed at the object, and wherein the detector forms an image of spots of light of the object thus illuminated by the light beams, and a processor is connected to the detector for reconstructing the shape of the object from the image of spots of light detected by the detector.; The detector and the light source have a fixed position in relation to one another, the object is located between predetermined boundaries, and a mask is placed between the light source and the object for the formation of light rays, the mask being provided with an aperture pattern that is placed such that when the object is moved between the predetermined boundaries, the individual spots of the light spot image observed by the detector move along non-intersecting line sections.Imaging Science & TechnologyApplied Science
Slachtlijn voor vee
No full textAn imaging device (14) on the conveyor line (2) is used to determine slaughter-relevant anatomical parameters of the animal (4). A control device (17) connected to the imaging device is used to control the processing stations (5-12) on the slaughter line, depending on the measured parameters. A slaughter line for domesticated animals such as cattle, pigs, goats or the like comprises a conveyor for transporting the animals on hooks past at least one processing station, e.g. a device for opening the stomach (5), a device for removing the innards (8) and/or an inspection area (11). An imaging device is placed on the conveyor line in order to determine slaughter-relevant anatomical parameters of the animal. A control device connected to the imaging device and processing stations is used to control the latter depending on the measured parameters.Mechanical, Maritime and Materials Engineerin
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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