Skip to main content

Table 2 Adjustment cases of the QLD process for 1L/2L BRC algorithm

From: An energy-efficient low-memory image compression system for multimedia IoT products

Number

State

Each mode

LR results

QL1

QL2

1

Stable state (3.5 < LR < 4.5)

1L mode

LR1 < TCR

+ 1

+ 2

2

LR1 > TCR

− 1

0

3

2L mode

LR2 < TCR

+2

+1

4

LR2 > TCR

0

− 1

5

Scene change state

1L mode

 

BRC table1 new QL1

QL2 ≤ QL1

6

2L mode

 

QL1 ≤ QL2

BRC table2 new QL2

  1. LR line compression ratio, TCR target compression ratio, QL quantization level