P-32: Mesopic Bit-Depth Analysis for High-Quality TV beyond 10-Bits

A mesopic bit-depth analysis is proposed, which shows HVS-characteristics between subtense angle and bit-depth. It gives a guideline to investigate further cost-down of 11 bits-depth display drivers: rapidly decreasing HVS-characteristics suggests an 8bits-based 4×4 dithering is applicable even for mesopic vision which is more sensible thanphotopic vision.