Opened 11 months ago

Last modified 11 months ago

#1589 new defect

Different rate-distortion results when the value of "REUSE_CU_RESULTS" changes.

Reported by: dumas Owned by:
Priority: minor Milestone:
Component: VTM Version: VTM-19.0
Keywords: Cc: ksuehring, XiangLi, jvet@…

Description

In the current master of VTM, commit 796c74ad, the rate-distortion results when “REUSE_CU_RESULTS” is equal to 1 and those when “REUSE_CU_RESULTS” is equal to 0 are not identical. Given that “REUSE_CU_RESULTS at 1 enables to reuse the compression information of a past CU that is “equivalent” to the current CU to be compressed, the rate-distortion results for these two cases must be identical.

Please find attached “bjontegaards_ai_one_vtm_19_hhi_master_2023_18_01_reuse_cu_results_off.csv” and “bjontegaards_ai_one_vtm_19_hhi_master_2023_18_01_reuse_cu_results_on.csv” the two rate-distortion results using commit 796c74ad when “REUSE_CU_RESULTS” is 0 and “REUSE_CU_RESULTS” is 1 respectively, in AI single frame.

Attachments (2)

bjontegaards_ai_one_vtm_19_hhi_master_2023_18_01_reuse_cu_results_off.csv (9.2 KB) - added by dumas 11 months ago.
Rate-distortion results using 796c74ad when "REUSE_CU_RESULTS" at 0.
bjontegaards_ai_one_vtm_19_hhi_master_2023_18_01_reuse_cu_results_on.csv (9.2 KB) - added by dumas 11 months ago.
Rate-distortion results using 796c74ad when "REUSE_CU_RESULTS" at 1.

Download all attachments as: .zip

Change history (3)

Changed 11 months ago by dumas

Rate-distortion results using 796c74ad when "REUSE_CU_RESULTS" at 0.

Changed 11 months ago by dumas

Rate-distortion results using 796c74ad when "REUSE_CU_RESULTS" at 1.

comment:1 Changed 11 months ago by dumas

  • Component changed from JEM to VTM
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