S/W Based Frame-Level Synchronization for Irregular Screen Processing System

Abstract

A multi‐screen environment provides a new opportunity for digital signage applications, where various irregularly shaped screens are employed as an effective means for advertisements and information. A formation method applicable to numerous irregularly shaped screens is proposed to provide a new perspective on digital signage applications. The crucial part of the proposed method comes from the geometric sensing of each screen and the formation of a virtual screen where geometrically aligned content extraction and encoding are employed for content transmission to each screen. In addition, a software‐based synchronization method for the proposed system is proposed to address the frame‐level synchronization between screens. The experimental results of the proposed method show an improved performance of the frame‐level synchronization, where the inconsistency between frames is not identified.

Low-cost tiled display system architecture with dynamic web-based management

“…In [25] a sync method is proposed for irregular screen systems (which can be directly applied to warp -or mosaic-distributed videowalls). An SMS scheme is adopted and, in order to predict the individual playout latency for every involved device, machine learning techniques are used by the maestro device (requiring high processing power).…”

Design and Assessment of a Scalable and Customizable Low-Cost Tiled Display System

“…No especifican el esquema de sincronización adoptado ni ofrecen resultados respecto al rendimiento de la sincronización. En [24] se propone el uso de un método de sincronización SMS ( [15][16]) para videowalls que emplea técnicas de machine learning para predecir la latencia de reproducción de los dispositivos, que deben ser dispositivos con rendimiento medio/alto, y con un coste mayor que los propuestos en este artículo. Se presentan resultados con un nivel de sincronización de menos de 10ms utilizando dispositivos Intel Core i3, i5 e i7.…”

Processing models for conflicting user requests in ubiquitous corporate smart spaces

“…A multi-screen environment provides a new opportunity for digital signage applications as an effective means for advertisements and information [10]. A software-based synchronization is proposed in that work to address the frame-level synchronization between multiple screens.…”