• Marco's avatar
    Non-rd variance partition: Adjustments to reduce dragging artifact. · d4440614
    Marco authored
    For non-rd variannce partition, speed >= 5:
    Adjustments to reduce dragging artifcat of background area near
    slow moving boundary.
    
    -Decrease base threshold under low source noise conditions.
    -Add condition to split 64x64/32x32 based on average variances
    of lower level blocks.
    
    PSNR/SSIM metrics go down ~0.7/0.9% on average on RTC set.
    Visually helps to reduce dragging artifact on some rtc clips.
    
    Change-Id: If1f0a1aef1ddacd67464520ca070e167abf82fac
    d4440614