Organisation internationale de normalisation

Review of documents

13.0.0.1.1.1.1.1.29m34973 Improvement on Lagrange Multiplier Selection for Internet Video Coding [Soo-Chang Oh, Anna Yang, Dong-Hyun Kim, Jae-Gon Kim]

In this document, a further improved method of the Lagrange multiplier selection for non-reference P frames is presented. Based on experimental observations, three different R-D characteristics depending on the QP values to be used in the non-reference P frame coding are fully considered, which results in three types of Lagrange multiplier selection model in the non-reference P frame coding. Experimental results show that the proposed selection of the Lagrange multiplier gives the average 0.4% bit saving over ITM 10.0 with the non-adaptive method of non-reference P frame coding.

BoG recommendation: Adopt it to ITM encoder temporally, when the new version of ITM is ready, the proposed method should be retested to verify the performance gain.

13.0.0.1.1.1.1.1.30m35352 Cross-check of m34973 (Improvement on Lagrange Multiplier Selection for Internet Video Coding) [Jin Yeon Choi, Sang-hyo Park, Euee S. Jang]

13.0.0.1.1.1.1.1.31m35003 Performance evaluation of ITM 10.0 over WebVC according to the VCC condition [Sang-hyo Park, Seung-ho Lee, Myeong Kyun Kim, Euee S. Jang]

This document reports on the objective evaluation results of ITM 10.0 according to the VCC condition written in N13943 in comparison with WebVC. In this contribution, ITM 10.0 was used, included a change at encoder side as the similar concept was included in M32465 (Report on the generation of the Web VC sequences)

ITM10 is compared with WVC