Light Field Coding With Field-of-View Scalability and Exemplar-Based Interlayer Prediction

Abstract

Light field coding with field of view scalability and exemplar-based inter-layer prediction. IEEE

Scalable Light Field Coding with Support for Region of Interest Enhancement

“…This makes it possible to control the amount of angular information available in the captured LF content by adjusting the main lens aperture. This fact has motivated the FOV scalability concept presented in [13].…”

“…With the FOV scalability approach, new levels of scalability can be defined, for instance, in terms of the following rendering capabilities [13]: changing perspective, changing focus (refocusing) and varying depth-of-field.…”

“…The FOV Scalable Light Field Coding architecture proposed in [13] can be extended to enable easy integration of ROI coding [14], [15]. ROI coding can be an important functionality, especially in limited bitrate network channels [15], and in application scenarios where some portions of the visualized content are of higher interest than others.…”

“…With this objective, the concept of Field of View (FOV) scalability and a novel FOV Scalable Light Field Coding (FOVS-LFC) solution were proposed in [13]. By hierarchically organizing the angular information of the captured LF data, progressively richer forms of the same LF content are supported in higher layers of FOV scalability.…”

“…To better handle this type of application scenarios, the coding architecture proposed in [13] is here extended to enable easy support for Region of Interest (ROI) coding [14] in the enhancement layers. This will give the user the possibility of increasing the FOV only for an object or region of interest.…”