Organisation internationale de normalisation

Proponent & Contribution	Y-BD-BR	U-BD-BR	V-BD-BR	YUV-BD-BR	Dec Time [%]
# taps
Cisco JCTVC-D223	0.6%	9.2%	10.3%	3.2%	98%	2 separable (not 1/8 sample)
Nokia JCTVC-D324 Variant 1	-0.1%	-1.5%	-1.7%	-0.6%	97%	6/2 separable
Nokia JCTVC-D324 Variant 2	-0.2%	-3.2%	-3.7%	-1.3%	98%	6/2 separable
Samsung JCTVC-D347 Variant 3: 4x4 separable 6 bits tap values	-0.4%	-5.4%	-6.3%	-2.2%	98%	4 separable
Sejong University, SK Telecom JCTVC-D271	-0.4%	-5.9%	-6.8%	-2.4%	106%	6/2 separable
HHI JCTVC-D057	-0.4%	-6.2%	-7.3%	-2.5%	114%	6/4 separable
Qualcomm JCTVC-D349	-0.4%	-4.7%	-5.2%	-1.9%	121%	6
Samsung JCTVC-D347 Variant 1: 6 taps 8 bits	-0.5%	-6.3%	-7.5%	-2.6%	105%	6 separable

7.2Contributions

7.2.1.1.1.1.1.1.1JCTVC-D057 CE4: Chroma interpolation using MOMS based FIR filters [H. Lakshman, H. Schwarz, D. Marpe, T. Wiegand]

7.2.1.1.1.1.1.1.2JCTVC-D162 CE4: Verification of Samsung's 4-tap DCT-IF Chroma [T.Chujoh, K.Kano, T.Yamakage (Toshiba)]

Cross-check for JCTVC-D162. It was remarked that the runtimes did not match those in JCTVC-D162 – perhaps a 10% difference – perhaps due to different platforms/compilers and whether or not the output is written to a file. It was remarked that, generally, substantial variance has been observed in runtime measures.

7.2.1.1.1.1.1.1.3JCTVC-D223 CE4: Interpolation filtering of chroma samples using two-stage averaging [A. Fuldseth, G. Bjøntegaard (Cisco)]

7.2.1.1.1.1.1.1.4JCTVC-D271 CE4 : Chroma Interpolation Filtering using High Precision Filter [J.-P. Kim, D.-Y. Kim, Jeongyeon Lim, Yung-Lyul Lee]

7.2.1.1.1.1.1.1.5JCTVC-D272 CE4 : Cross-check of Samsung’s DCT-IF 6-tab chroma filtering [Jeong-Pil Kim, Dae-Yeon Kim, Heongyeon Lim, Yung-Lyul Lee]

7.2.1.1.1.1.1.1.6JCTVC-D289 CE4: Crosscheck of Qualcomm’s 1/8 pel accuracy high precision filter interpolation filter for chroma by MediaTek [Jicheng An, Xun Guo]

7.2.1.1.1.1.1.1.7JCTVC-D318 CE4: Cross verification of high precision chroma interpolation filter [K. Ugur, J. Lainema (Nokia)]

7.2.1.1.1.1.1.1.8JCTVC-D324 CE4: Results for chroma interpolation filter tests by Nokia [K. Ugur, J. Lainema (Nokia)]

7.2.1.1.1.1.1.1.9JCTVC-D346 CE4: Cross-verification of HHI’s experimental results for Chroma interpolation using MOMS by Samsung [E. Alshina, W.-J. Han, J. Chen (Samsung)]

7.2.1.1.1.1.1.1.10JCTVC-D347 CE4: Experimental results of DCTIF application for Chroma MC by Samsung [J. Chen, E. Alshina, W.-J. Han (Samsung)]

7.2.1.1.1.1.1.1.11JCTVC-D349 CE4: High Precision Filtering for Chroma [P. Chen, M. Karczewicz]

7.2.1.1.1.1.1.1.12JCTVC-D351 CE4: Cross-check for Cisco’s Proposal [P. Chen, M. Karczewicz]

7.2.1.1.1.1.1.1.13JCTVC-D373 CE4: Cross check of Nokia's chroma interpolation filter JCTVC-D324 [H. Lakshman]

7.2.1.1.1.1.1.1.14JCTVC-D415 CE4: Cross-check report of Nokia’s Chroma interpolation filter [Jiwook Jung, Eunyong Son, Sehoon Yea (LG)] (late registration Monday 17th, uploaded Monday 17th, before meeting)

7.2.1.1.1.1.1.1.15JCTVC-D420 Huawei & HiSilicon report on CE4: Experimental results of DCTIF application for Chroma MC by Samsung Lingzhi Liu, Yongbing Lin, Haoping Yu (late registration Tuesday 18th, uploaded Wednesday 19th, before meeting)

Cross-check for JCTVC-D162.

7.2.1.1.1.1.1.1.16JCTVC-D422 CE4: Cross-verification of Samsung 4-tap DCT-IF chroma filter [K. Ugur (Nokia)] (late registration Thursday 20th after start of meeting, uploaded Thursday 20th, first day of meeting)

Cross-check for JCTVC-D162.