2026-03-12T14:31:04Z https://tokushima-u.repo.nii.ac.jp/oai

oai:tokushima-u.repo.nii.ac.jp:02008648 2025-04-28T05:09:17Z 1713853213384:1713853295607

Low-Complexity and Hardware-Friendly H.265/HEVC Encoder for Vehicular Ad-Hoc Networks Jiang, Xiantao Feng, Jie 宋, 天 1231 ソウ, テン 79439/profile-ja.html Song, Tian 10380130 片山, 貴文 976 カタヤマ, タカフミ 350321/profile-ja.html Katayama, Takafumi 70848522 high efficiency video coding low complexity hardware friendly vehicular ad-hoc networks Real-time video streaming over vehicular ad-hoc networks (VANETs) has been considered as a critical challenge for road safety applications. The purpose of this paper is to reduce the computation complexity of high efficiency video coding (HEVC) encoder for VANETs. Based on a novel spatiotemporal neighborhood set, firstly the coding tree unit depth decision algorithm is presented by controlling the depth search range. Secondly, a Bayesian classifier is used for the prediction unit decision for inter-prediction, and prior probability value is calculated by Gibbs Random Field model. Simulation results show that the overall algorithm can significantly reduce encoding time with a reasonably low loss in encoding efficiency. Compared to HEVC reference software HM16.0, the encoding time is reduced by up to 63.96%, while the Bjontegaard delta bit-rate is increased by only 0.76–0.80% on average. Moreover, the proposed HEVC encoder is low-complexity and hardware-friendly for video codecs that reside on mobile vehicles for VANETs. journal article MDPI 2019-04-24 VoR application/pdf Sensors 8 19 1927 14248220 https://tokushima-u.repo.nii.ac.jp/record/2008648/files/sensors_19_8_1927.pdf https://tokushima-u.repo.nii.ac.jp/records/2008648 eng This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).