Early Termination Algorithm for CU Size Decision in HEVC Intra Coding
عنوان مقاله: Early Termination Algorithm for CU Size Decision in HEVC Intra Coding
شناسه ملی مقاله: ICMVIP09_020
منتشر شده در نهمین کنفرانس ماشین بینایی و پردازش تصویر ایران در سال 1394
شناسه ملی مقاله: ICMVIP09_020
منتشر شده در نهمین کنفرانس ماشین بینایی و پردازش تصویر ایران در سال 1394
مشخصات نویسندگان مقاله:
Mohammadreza Ramezanpour - PHD candidate in Department of Computer Engineering Science and Research branch, Islamic Azad University Tehran, Iran
Farzad Zargari - Information Technology Research Institute Iran Telecom Research Center (ITRC) Tehran, Iran
خلاصه مقاله:
Mohammadreza Ramezanpour - PHD candidate in Department of Computer Engineering Science and Research branch, Islamic Azad University Tehran, Iran
Farzad Zargari - Information Technology Research Institute Iran Telecom Research Center (ITRC) Tehran, Iran
Intra coding in the High Efficiency Video Coding (HEVC) standard can significantly improve the compression efficiency but increasing the number of intra prediction modes and also higher number of Coding Unit (CU) sizes in the HEVC standard imposes much higher computational load compared with intra prediction in H.264/AVC, which substantially is computational intensive. To reduce the intra coding complexity in HEVC, this paper presents an early termination algorithm for intra prediction. The proposed method is based on the fact that a homogenous region can be predicted with larger CUs. As a result when the proposed smoothness parameter is lower than apredefined threshold, only the prediction modes in the current CU are evaluated. Experimental results indicate that the proposed algorithm can provide on average 27.5% time savings with only 0.4% BD-rate loss whereas it maintains the same coding video quality compared with HEVC reference software, HM15.0, in all intra-main configuration
کلمات کلیدی: Intra prediction; Fast intra mode decision; Fast CU size decision; HEVC
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/568547/