Browsing by Subject "Maps"
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Item Open Access Decalcomania, mapping and mimesis(University of Nebraska Press, 2005) Aracagök, Z.Item Open Access Directional processing of ultrasonic arc maps and its comparison with existing techniques(IEEE, 2007) Barshan, Billur; Altun, KeremDirectional maximum (DM) technique for processing ultrasonic arc maps (UAMs) is proposed and compared to existing techniques. It employs directional processing in extracting the map of the environment from UAMs. DM aims at overcoming the intrinsic angular uncertainty of ultrasonic sensors in map building, as well as eliminating noise and cross-talk related misreadings. The comparison is based on experiments with a mobile robot which ac-quired ultrasonic range measurements through wall following. Three complementary performance criteria are used. The DM technique offers a very good compromise between mean absolute error and correct detection rate, with a processing time less than one tenth of a second. It is also superior in range accuracy and in eliminating artifacts, resulting in the best overall performance. The results indicate several trade-offs in the choice of UAM processing techniques.Item Open Access The effect of graphic design materials on the retention level of viewers in prime time television newscasts(Bilkent University, 1996) Ertep, Rifat HakanThis study investigates the role of graphic design materials in improving the recall and retention level of television news viewers, and examines the capacity and power of these materials to shape or distort people's perception of reality. To this end, two experiments have been conducted with the aim of providing an empirical framework to the role of graphics in the construction of reality. It was found that graphics increase the recall and retention level of the viewers, and that they can alter viewers' recall of the content of the news stories.Item Restricted Oryantiring sporunun Türkiye serüveni(Bilkent University, 2021) Akman, Ziya Kağan; Arslan, İsmail Alp; Bilge, Serdar; Demirkol, Yasemin; Topcan, Halil Mert; Tulukcu, AlphanBu proje kapsamında, Türkçesi “koşarak hedef bulma” olan Oryantiring sporunun Türkiyeye gelişini ve ilerlemesi incelenecektir. İlk olarak Türk Silahlı Kuvvetleri vasıtasıyla ülkemize gelen oryantiring, o dönemki öncülerden bir kişi ile röportaj yapılarak bu sürece giriş yapılacaktır. 1990-2000 yılları arasında bu konuyla ilgili yazılı kaynakların da bu dönemi desteklemesi düşünülmektedir. İkincil olarak Oryantiring Federasyonunun nasıl kurulduğu, diğer federasyonlardan nasıl özerkleştiği ve günümüzdeki haline nasıl geldiği hem zamanında federasyonda görev almış kişilerden hem de çeşitli gazete ve belgesellerle geniş bir perspektiften incelenecektir. Son olarak ise Oryantiring Federasyonunun günümüzdeki konumu, büyüklük ve kapsamı, kulüp bazında ve bireysel bazda neler yapıldığı ilgili kişilerle röportaj sağlanarak kayıt altına alınacaktır.Item Open Access Performance evaluation of ultrasonic arc map processing techniques by active snake contours(2008) Altun, K.; Barshan, B.Active snake contours are considered for representing the maps of an environment obtained by different ultrasonic arc map (UAM) processing techniques efficiently. The mapping results are compared with the actual map of the room obtained with a very accurate laser system. This technique is a convenient way to represent and compare the map points obtained with different techniques among themselves, as well as with an absolute reference. It is also applicable to map points obtained with other mapping techniques. © 2008 Springer-Verlag Berlin Heidelberg.