@incollection{AndersBrencherFieseleretal., author = {Anders, Anett Katharine and Brencher, Diana and Fieseler, Klaus and Helfrich, Ute and Josuttis, Uwe and Kowalski, Marlene and Lackner, Renate and Malten, Maurice and Meyer, Kristian and Racz, Ilona and Retkowski, Alexandra and Sch{\"a}fer, Maximilian and Umbach, Martina and Wask{\"o}nig, Clara and Wenzel, Horst}, title = {Zum Umgang mit Sexualit{\"a}t, N{\"a}he und Distanz. Ein kasuistisch-partizipatives Fort- und Weiterbildungsangebot zur Professionsehtik im Sozial- und Bildungssektor}, series = {Perspektiven auf sexualisierte Gewalt. Einsichten aus Forschung und Praxis}, booktitle = {Perspektiven auf sexualisierte Gewalt. Einsichten aus Forschung und Praxis}, editor = {Wazlawik, Martin and Christmann, Bernd and B{\"o}hm, Maika and Dekker, Arne}, edition = {1. Auflage}, publisher = {Springer VS}, address = {Wiesbaden}, isbn = {978-3-658-23235-1}, doi = {https://doi.org/10.1007/978-3-658-23236-8}, pages = {29 -- 47}, language = {de} } @misc{HerglotzOchMeyeretal., author = {Herglotz, Christian and Och, Hannah and Meyer, Anna and Ramasubbu, Geetha and Eicherm{\"u}ller, Lena and Kr{\"a}nzler, Matthias and Brand, Fabian and Fischer, Kristian and Nguyen, Dat Thanh and Regensky, Andy and Kaup, Andr{\´e}}, title = {The Bj{\o}ntegaard Bible Why Your Way of Comparing Video Codecs May Be Wrong}, series = {IEEE Transactions on Image Processing}, journal = {IEEE Transactions on Image Processing}, number = {Volume 33}, issn = {1057-7149}, doi = {10.1109/TIP.2023.3346695}, pages = {987 -- 1001}, abstract = {In this paper, we provide an in-depth assessment on the Bj{\o}ntegaard Delta. We construct a large data set of video compression performance comparisons using a diverse set of metrics including PSNR, VMAF, bitrate, and processing energies. These metrics are evaluated for visual data types such as classic perspective video, 360° video, point clouds, and screen content. As compression technology, we consider multiple hybrid video codecs as well as state-of-the-art neural network based compression methods. Using additional supporting points in-between standard points defined by parameters such as the quantization parameter, we assess the interpolation error of the Bj{\o}ntegaard-Delta (BD) calculus and its impact on the final BD value. From the analysis, we find that the BD calculus is most accurate in the standard application of rate-distortion comparisons with mean errors below 0.5 percentage points. For other applications and special cases, e.g., VMAF quality, energy considerations, or inter-codec comparisons, the errors are higher (up to 5 percentage points), but can be halved by using a higher number of supporting points. We finally come up with recommendations on how to use the BD calculus such that the validity of the resulting BD-values is maximized. Main recommendations are as follows: First, relative curve differences should be plotted and analyzed. Second, the logarithmic domain should be used for saturating metrics such as SSIM and VMAF. Third, BD values below a certain threshold indicated by the subset error should not be used to draw recommendations. Fourth, using two supporting points is sufficient to obtain rough performance estimates.}, language = {en} }