| 1891. |
- Engberg, Maria
(författare)
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Morphing Into New Modes of Writing : John Cayley's riverIsland
- 2006
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Ingår i: Leonardo Electronic Almanac. - Cambridge, MA : MIT Press. - 1071-4391. ; 14:5
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Tidskriftsartikel (refereegranskat)abstract
- Today we do not only see the convergence of many modern and postmodern strategies in literature, forming that “difficult whole” McHale enumerates in his work on postmodern long poems, The Obligation Toward a Difficult Whole, but we are also living in an eruption of digital technologies which today are considered by most to be media, and thus called new media. riverIsland, I argue, is a meta-text and a paradigmatic example of new media poetry as instantiation of many different concurrent strategies and traditions (with highly diverse genealogies) which co-exist now. In my reading I focus on the morphing in riverIsland as one of those strategies.
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| 1892. |
- Engberg, Maria
(författare)
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Remediation : Understanding the New Media.
- 2005
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Ingår i: The Legacy of McLuhan. - Cresshill, NJ : Hampton Press. - 1572735317 ; , s. 323-344
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 1893. |
- Engberg, Maria
(författare)
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riverIsland och digital poesi
- 2005
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Ingår i: OEI. - Göteborg : Majornas copyprint. - 1404-5095. ; 22/23
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Tidskriftsartikel (refereegranskat)abstract
- Today we do not only see the convergence of many modern and postmodern strategies in literature, forming that “difficult whole” McHale enumerates in his work on postmodern long poems, *The Obligation Toward a Difficult Whole*, but we are also living in an eruption of digital technologies which today are considered by most to be media, and thus called new media. *riverIsland*, I argue, is a meta-text and a paradigmatic example of new media poetry as instantiation of many different concurrent strategies and traditions (with highly diverse genealogies) which co-exist now. In my reading I focus on the morphing in *riverIsland* as one of those strategies.
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| 1894. |
- Engberg, Maria
(författare)
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Taking My Time : Anxiety of Narrative and Temporality in Steve Tomasula’s TOC and VAS
- 2011
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Konferensbidrag (refereegranskat)abstract
- Authors such as Steve Tomasula simultaneously respond to a long tradition of word-and-image combinations in literature and engage with radically new possibilities for re-imagining the function of the visual in written and oral texts. Tomasula’s TOC and VAS condition readers to a “polyaesthetics,” a multifaceted reading of multimodal texts that demands new theorization of the reader’s sense of proprioception (true or imagined) and spatio-temporality as navigational device propelling experience. The paper defines “polyaesthetics” in relation to Tomasula’s two narratives and its implications for the larger field of digital literatures.
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| 1895. |
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| 1896. |
- Engelke, Ulrich, et al.
(författare)
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An Artificial Neural Network for Quality Assessment in Wireless Imaging Based on Extraction of Structural Information
- 2007
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Konferensbidrag (refereegranskat)abstract
- In digital transmission, images may undergo quality degradation due to lossy compression and error-prone channels. Efficient measurement tools are needed to quantify induced distortions and to predict their impact on perceived quality. In this paper, an artificial neural network (ANN) is proposed for perceptual image quality assessment. The quality prediction is based on structural image features such as blocking, blur, image activity, and intensity masking. Training and testing of the ANN is performed with reference to subjective experiments and the obtained mean opinion scores (MOS). It is shown that the proposed ANN is capable of predicting MOS over a wide range of image distortions. This applies to both cases, when reference information about the structure of the original image is available to the ANN but also in absence of this knowledge. The considered ANN would therefore be well suited for combination with link adaption techniques.
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| 1897. |
- Engelke, Ulrich, et al.
(författare)
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Analysing Inter-Observer Saliency Variations in Task-Free Viewing of Natural Images
- 2010
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Konferensbidrag (refereegranskat)abstract
- We analyse variations of saliency between human observers when viewing natural image content. For this purpose, we conducted an eye tracking experiment to record gaze patterns of humans when viewing natural images. The resulting gaze patterns were used to create saliency maps for each observer and image. A correlation analysis is then conducted with the aim to quantify the variability of saliency between the observers and the different images. The results are considered to be a first step towards gaining a better understanding regarding the reliability of saliency maps for natural images.
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| 1898. |
- Engelke, Ulrich, et al.
(författare)
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Comparative Study of Fixation Density Maps
- 2013
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Ingår i: IEEE Transactions on Image Processing. - : IEEE. - 1057-7149 .- 1941-0042. ; 22:3, s. 1121-1133
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Tidskriftsartikel (refereegranskat)abstract
- Fixation density maps (FDM) created from eye tracking experiments are widely used in image processing applications. The FDM are assumed to be reliable ground truths of human visual attention and as such, one expects a high similarity between FDM created in different laboratories. So far, no studies have analyzed the degree of similarity between FDM from independent laboratories and the related impact on the applications. In this paper, we perform a thorough comparison of FDM from three independently conducted eye tracking experiments. We focus on the effect of presentation time and image content and evaluate the impact of the FDM differences on three applications: visual saliency modeling, image quality assessment, and image retargeting. It is shown that the FDM are very similar and that their impact on the applications is low. The individual experiment comparisons, however, are found to be significantly different, showing that inter-laboratory differences strongly depend on the experimental conditions of the laboratories. The FDM are publicly available to the research community.
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| 1899. |
- Engelke, Ulrich, et al.
(författare)
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Comparing Two Eye-Tracking Databases : The Effect Of Experimental Setup And Image Presentation Time On The Creation Of Saliency Maps
- 2010
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Konferensbidrag (refereegranskat)abstract
- Visual attention models are typically designed based on human gaze patterns recorded through eye tracking. In this paper, two similar eye tracking experiments from independent laboratories are presented, in which humans observed natural images under task-free condition. The resulting saliency maps are analysedwith respect to two criteria; the consistency between the experiments and the impact of the image presentation time. It is shown, that the saliency maps between the experiments are strongly correlated independent of presentation time. It is further revealed that the presentation time can be reduced without substantially sacrificing the accuracy of the convergent saliency map. The results provide valuable insight into the similarity of saliency maps from independent laboratories and are highly beneficial for the creation of converging saliency maps at reduced experimental time and cost.
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| 1900. |
- Engelke, Ulrich, et al.
(författare)
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Framework for Optimal Region of Interest-based Quality Assessment in Wireless Imaging
- 2010
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Ingår i: Journal of Electronic Imaging (JEI). - : SPIE. - 1017-9909 .- 1560-229X. ; 19:1
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Tidskriftsartikel (refereegranskat)abstract
- Images usually exhibit regions that particularly attract the viewer's attention. These regions are typically referred to as regions-of-interest (ROI) and the underlying phenomenon in the human visual system is known as visual attention (VA). In the context of image quality one may expect that distortions occuring in the ROI are perceived as being more annoying, as compared to distortions in the background. However, VA is only seldom taken into account in existing image quality metrics. In this paper, we thus provide a VA framework to extend existing image quality metrics with a simple VA model. The performance of the framework is evaluated on three contemporary image quality metrics. We further consider the context of wireless imaging where a broad range of artifacts can be observed. To facilitate the VA based metric design, we conducted subjective experiments to both obtain a ground truth for the subjective quality of a set of test images and to identify ROI in the corresponding reference images. A methodology is further discussed to optimize the VA metrics with respect to quality prediction accuracy and generalization ability. It is shown that the quality prediction performance of the three considered metrics can be significantly improved by deploying the proposed framework.
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