Analysis of SSIM performance for Digital Cinema applications

Visual quality is one of the most important issues in digital cinema applications, and the most practical method to measure visual quality is using objective metrics. Several objective metrics that take into account perceived visual quality have been developed in the past few years; one of them is based on the structural similarity paradigm. To analyze the performance of these objective metrics for digital cinema applications, a subjective visual quality assessment in digital cinema environments using contents from the digital cinema initiative (DCI) standard evaluation material has been conducted in a previous study. Since in practice digital cinema utilizes only high quality imagery, in this paper we analyze further a subset of high- quality stimuli from the previous stud

INDCOR white paper on the Design of Complexity IDNs

This white paper was written by the members of the Work Group focusing on design practices of the COST Action 18230 - Interactive Narrative Design for Complexity Representation (INDCOR, WG1). It presents an overview of Interactive Digital Narratives (IDNs) design for complexity representations through IDN workflows and methodologies, IDN authoring tools and applications. It provides definitions of the central elements of the IDN alongside its best practices, designs and methods. Finally, it describes complexity as a feature of IDN, with related examples. In summary, this white paper serves as an orienting map for the field of IDN design, understanding where we are in the contemporary panorama while charting the grounds of their promising futures

A robust, low complexity 5.0 kbps stochastic coder for a noisy satellite channel

A code excited linear predictive coding (CELP) based coder operating at 5065 bps is presented. The coder uses a self-excitation sequence for long-term prediction in addition to a fixed codebook populated with stochastic multipulse vectors as the excitation signal. The authors describe how the complexity of the coder is reduced, and present methods of increasing its spectral robustness, thus making it a suitable candidate for mobile satellite communication. The complexity is greatly reduced by using overlapping codevectors in both the adaptive and multipulse codebook. For robustness a filter correction scheme is derived, which, together with frame repetition techniques, will let the coder operate with little perceivable degradation in burst durations up to 40 ms.link_to_subscribed_fulltex