Abstract: There is provided an image decoding method comprising: deriving a first prediction value of a current block by using at least one sample included in a reference block, obtaining an illumination compensation parameter on the basis of a predetermined reference region, deriving a second prediction value of the current block by applying the illumination compensation parameter to the first prediction value and reconstructing the current block on the basis of the second prediction value.

Abstract: Disclosed is a CO capturing device for improving CO removal efficiency and use of a dry solid absorbent. The device comprises a CO recovery reactor 1 to permit CO containing gas externally supplied to be in contact with a dry solid absorbent to capture CO; a recovery cyclone 4 connected to the recovery reactor 1 to exhaust CO-free gas while separating a solid portion containing CO; a fluidized bed type regeneration reactor 2 which receives the solid portion through a solid feeding pipe 5 connected to the recovery cyclone 4 and divides the solid portion into CO and the other part containing the dry solid absorbent by using a fluidizing gas fed through a fluidizing gas supply pipe 8; a regeneration cyclone 6 to exhaust the separated CO outside in order to use CO in the regeneration reactor 2; and a water vapor pretreatment device 3 connected to the regeneration reactor 2 to absorb H O in the dry solid absorbent and feedback the H O containing absorbent to the recovery reactor 1.

Abstract: Disclosed is a CO2 capturing device for improving CO2 removal efficiency and use of a dry solid absorbent. The device comprises a CO2 recovery reactor 1 to permit CO2 containing gas externally supplied to be in contact with a dry solid absorbent to capture CO2; a recovery cyclone 4 connected to the recovery reactor 1 to exhaust CO2-free gas while separating a solid portion containing CO2; a fluidized bed type regeneration reactor 2 which receives the solid portion through a solid feeding pipe 5 connected to the recovery cyclone 4 and divides the solid portion into CO2 and the other part containing the dry solid absorbent by using a fluidizing gas fed through a fluidizing gas supply pipe 8; a regeneration cyclone 6 to exhaust the separated CO2 outside in order to use CO2 in the regeneration reactor 2; and a water vapor pretreatment device 3 connected to the regeneration reactor 2 to absorb H2O in the dry solid absorbent and feedback the H2O containing absorbent to the recovery reactor.