4K 120fps HEVC Temporal Scalable Encoder with Super Low Delay This paper describes a novel 4K 120 fps (frames per second) realtime HEVC encoder for HFR (high frame rate) video encoding and transmission. HFR provides more immersive viewing experience, and realtime encoding of HFR videos with low latency and temporal scalability is required for providing HFR video services. Multichip configuration with two encoder LSIs achieves full 4K120fps realtime encoding. The exchange of reference picture data near the spatially divided slice boundary provides crosschip motion estimation, and maintains the coding efficiency. The encoder supports stream output with temporal scalability transmitted over one or two transmission paths. It also achieves 21.8 msec low latency processing by using motion vector restriction.

Visualization of Dynamic Resource Allocation for HEVC Encoding in FPGAAccelerated SDN Cloud This paper describes a demonstration setup to visualize dynamic resource allocation for realtime HEVC encoding services in FPGAaccelerated cloud. The demonstrated application is Kvazaar HEVC intra encoder, whose functionality is partitioned between FPGAs and processors. During the demonstration, several encoding services can be invoked with requests to the resource manager, which is responsible for allocation, deallocation, and load balancing of resources in the network. The manager provides JSON data to the visualizer, which uses D3 JavaScript library to visualize 1) the physical network structure; 2) running services; and 3) performance of the network elements. This interactive demonstration allows users to request new video streams, view the encoded streams, observe the visualization of the network and services, and manually turn onoff resources to test the robustness of the system.