Media.Player

Scalable HEVC Intra Frame Complexity Control Subject to Quality and Bitrate Constraints

Technology Benefits

Minimizescomputational complexity, maximizes image quality, and minimizes bandwidthMinimizesencoding time while delivering sufficient video qualityApproachhas been tested using HEVC standard test video and the ability to dynamicallyreconfigure between low, medium, and high profilesSuccessfullymeets the constraints while achieving real-time, high-quality video encodingSubstantialbitrate savings can be attained depending on the length of the activity ofinterestCapableof achieving bitrate savings of 35% and 51.5%.Applicationsin video processing and video analytics in compression domain

Detailed Technology Description

Anapproach that minimizes the computational complexity of High Efficiency Video Coding (HEVC) intra encodingsubject to constraints in bitrate and reconstruction quality.

*Abstract

Thistechnology provides adaptive methods that can adjust video compressionparameters and components to accomplish optimal performance. The control mechanismdynamically adjusts to provide a high quality video while minimizing therequired encoding time. This technology is also capable of analyzing the videoto determine camera activity (tracking, stationary, or zooming) and thenassociates each activity with adaptive video quality constraints. Thus, ineffect, the technology effectively compresses the video for specific tasks thatthe users, or the owners of the video content, can then adjust.

*Background

High Efficiency Video Coding (HEVC) is a videocompression standard and is the successor of Advanced Video Coding (AVC). Atthe same level of video quality as AVC, HEVC aims to provide a 50% reduction inbitrate. Unfortunately,to achieve a bitrate reduction of 50%, HEVC relies on extensions of the currentcompression methods that come at significant levels of additional computationalcomplexity. In general, maximizing video quality while minimizingbitrate have been of highest concern, but computational complexity and itseffects on encoding time have not been considered. Although reducing thecomplexity of HEVC encoding for both inter and intra coding has recently beenof prominent research interest, previous approaches have not taken into accountthat video compression requirements can vary for reasons such as: networkingconditions, energy/power constraints, or varying expectations of video quality.Thus, there is a present need for an approach to reduce computationalcomplexity that supports bitrate and video quality.

*Publications

Optimal HEVC Encoding Based on GOP ConfigurationsA Unified and Pipelined Hardware Architecture for Implementing Intra Prediction in HEVC

Country/Region

USA