TY - CHAP A1 - Anders, Anett Katharine A1 - Brencher, Diana A1 - Fieseler, Klaus A1 - Helfrich, Ute A1 - Josuttis, Uwe A1 - Kowalski, Marlene A1 - Lackner, Renate A1 - Malten, Maurice A1 - Meyer, Kristian A1 - Racz, Ilona A1 - Retkowski, Alexandra A1 - Schäfer, Maximilian A1 - Umbach, Martina A1 - Waskönig, Clara A1 - Wenzel, Horst ED - Wazlawik, Martin ED - Christmann, Bernd ED - Böhm, Maika ED - Dekker, Arne T1 - Zum Umgang mit Sexualität, Nähe und Distanz. Ein kasuistisch-partizipatives Fort- und Weiterbildungsangebot zur Professionsehtik im Sozial- und Bildungssektor T2 - Perspektiven auf sexualisierte Gewalt. Einsichten aus Forschung und Praxis KW - Sexualisierte Gewalt Y1 - 2020 SN - 978-3-658-23235-1 U6 - https://doi.org/https://doi.org/10.1007/978-3-658-23236-8 SP - 29 EP - 47 PB - Springer VS CY - Wiesbaden ET - 1. Auflage ER - TY - GEN A1 - Herglotz, Christian A1 - Och, Hannah A1 - Meyer, Anna A1 - Ramasubbu, Geetha A1 - Eichermüller, Lena A1 - Kränzler, Matthias A1 - Brand, Fabian A1 - Fischer, Kristian A1 - Nguyen, Dat Thanh A1 - Regensky, Andy A1 - Kaup, André T1 - The Bjøntegaard Bible Why Your Way of Comparing Video Codecs May Be Wrong T2 - IEEE Transactions on Image Processing N2 - In this paper, we provide an in-depth assessment on the Bjøntegaard 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 Bjøntegaard-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. KW - Measurement KW - Calculus KW - Codecs KW - Interpolation KW - Image coding KW - Distortion KW - Visualization Y1 - 2024 U6 - https://doi.org/10.1109/TIP.2023.3346695 SN - 1057-7149 SN - 1941-0042 IS - Volume 33 SP - 987 EP - 1001 ER -