Nordic pay TV operator TDC has selected Appear TV’s XC5000 video processing platform to provide encoding and multiscreen transcoding for live linear broadcasts.The platform will be deployed for all TDC’s broadcasts, including the YouSee cable service and its OTT and multiscreen offerings.With the deployment, TDC aims to provide high quality picture across 100 linear OTT channels to around 1.2 million subscribers in Denmark and Norway.“When choosing our next generation video compression platform, we were looking for a single, user-friendly platform that would enable us to update our signal processing equipment to offer best in class image quality. This meant that we had to take into account a number of parameters, including video quality, power consumption, ease of integration and operation and the number of switches required to operate multiple TV services with hundreds of channels,” said Mads Arnbjørn Rasmussen, vice-president TV and coaxial technology, TDC.The Appear TV XC5000 platform is designed to accommodate customers’ preferred system architectures while reducing complexity. It is possible to build an entire broadcast system in a single chassis consisting of discreet stages or distributed architectures. Appear TV will exhibit at IBC on stand 1.C61
Altice has said it will appeal a decision by the European Commission to fine it €124.5 million for ‘gun jumping’ the regulatory green light to acquire PT Telecom in Portugal in June 2015.The EC ruled that Altice infringed the ‘prior notification obligation’ relating to mergers and acquisitions. The Commission said that Altice had made certain provisions in its purchase agreement for the Portuguese operator that resulted in it acquiring the legal right to exercise decisive influence over PT Portugal, for example by granting Altice veto rights over decisions concerning PT Portugal’s ordinary business. It also found that Altice had exercised influence over parts of PT Portugal’s business, for example by iving PT Portugal instructions on how to carry out a marketing campaign and by seeking and receiving detailed commercially sensitive information about PT Portugal outside the framework of any confidentiality agreement.Commissioner Margrethe Vestager, in charge of competition policy, said: “Companies that jump the gun and implement mergers before notification or clearance undermine the effectiveness of our merger control system. This is the system that protects European consumers from any merger that would lead to higher prices or reduced choice. The fine imposed by the Commission on Altice today reflects the seriousness of the infringement and should deter other firms from breaking EU merger control rules.”In setting out the reasons for its decision to appeal to the EU General Court, Altice said that the PT Telecom case differed substantially from previous ‘gun jumping’ sanctions imposed by France’s competition watchdog relating to its acquisition of SFR and Virgin Mobile France.“Altice fully disagrees with the Commission’s decision, and in particular, it considers that this case differs entirely from the French Numéricable/SFR/Virgin gun jumping case, in which Altice had agreed not to challenge the allegations brought against it. In Altice’s opinion, the transaction agreement governing the management of the target during the pre-closing period provided Altice with a consultation right on certain exceptional matters relating to PT Portugal, and was in accordance with well-established M&A market practice,” the company said.Altice also said that the EC’s file on the case failed to establish that Altice had exercised influence over PT Portugal’s business before its merger notification to the Commission or ahead of receiving the green light.Altice said that the EC’s ruling “would have serious consequences for European companies” and set a precedent that would “have an impact on all future M&A transactions in Europe and consequently on the EU economy” if it went unchallenged.
Citation: Algorithm successfully simulates color perception for #theDress image (2018, March 26) retrieved 18 July 2019 from https://phys.org/news/2018-03-algorithm-successfully-simulates-perception-thedress.html The matched color appearance of 15 observers distributed widely across this chart; not restricted to the diagonal line between A-1 and G-7 as it was assumed in previous studies on the appearance of #theDress image. Credit: Ichiro Kuriki Provided by Tohoku University Explore further A novel algorithm to simulate the color appearance of objects under chromatic illuminants has been proposed by Ichiro Kuriki of Tohoku University. The figure shows the result of applying this algorithm to #theDress image. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. “#theDress image” refers to a photo that went viral on the internet in February 2015, when viewers disagreed over the colors seen in the dress. The discussion revealed differences in human color perception and prompted studies in vision science.How do we perceive colors? The details are not yet fully understood, even for colors that people easily experience. This remains one of the fundamental questions about vision. Objects reflect light from an illuminant on their surfaces. The light that falls on the retina is changed by an illuminant. However, people scarcely perceive object color shifts. Although slight color shifts remain, the human visual system is able to compensate for illuminant changes.Several groups have proposed algorithms to simulate these shifts in color appearance, but problems remain, including the issue of achromatic points. Achromatic points are a series of rays that appear colorless (white to black through gray) under a given illuminant, and they work as the basis to evaluate hue and vividness. Therefore, an achromatic point is a keystone in color appearance simulations, but previous models by other groups proposed complicated formulas to simulate achromatic points.Kuriki previously discovered a simple method to approximate these achromatic points under a chromatic illuminant. By combining this with a lightness adjustment, a simple algorithm was proposed to simulate the appearance of color under a colored illuminant. The algorithm was applied to #theDress image, widely acknowledged for its huge individual differences in color appearance. More information: Ichiro Kuriki, A Novel Method of Color Appearance Simulation Using Achromatic Point Locus With Lightness Dependence, i-Perception (2018). DOI: 10.1177/2041669518761731 Brightness and darkness as perceptual dimensions Such variability is known to originate from differences in the estimated color and intensity of the illuminant falling on the dress. For example, if a viewer assumed a bluish dim illuminant, they perceive the dress as white/gold. The color and intensity of illuminant was systematically varied and successfully simulated differences in color appearance of #theDress under various assumptions (Figure); one of these pieces may resemble what you perceive from #theDress image.The method is also capable of preserving the wider color range of the image’s darker parts, even when adjusted for the lightness to simulate a dimmer situation. This is advantageous for high dynamic range displays such as OLED screens. Simulation of individual differences in the appearance of #theDress image, including two extremes: white/gold (top left: A-1) and blue/black (bottom right: G-7). Original corresponds to the center (D-4). Credit: Ichiro Kuriki