US 12,242,178 B2
Projection apparatus, projection method, and computer-readable storage medium
Naoya Okamoto, Yokohama (JP); Ryosuke Nakagoshi, Yokohama (JP); Shinji Kikuma, Yokohama (JP); and Shigeru Maruyama, Yokohama (JP)
Assigned to JVCKENWOOD Corporation, Yokohama (JP)
Filed by JVCKENWOOD Corporation, Yokohama (JP)
Filed on Sep. 23, 2022, as Appl. No. 17/951,157.
Application 17/951,157 is a continuation of application No. PCT/JP2021/026781, filed on Jul. 16, 2021.
Claims priority of application No. 2020-188049 (JP), filed on Nov. 11, 2020.
Prior Publication US 2023/0020363 A1, Jan. 19, 2023
Int. Cl. G03B 21/20 (2006.01); H04N 9/31 (2006.01)
CPC G03B 21/2053 (2013.01) [H04N 9/3155 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A projection apparatus that projects an image on a screen based on input data including information on absolute luminance, the projection apparatus comprising:
a peak luminance value acquisition unit configured to acquire a peak luminance value that is a luminance value on the screen when the projection apparatus is set to a predetermined state and when the projection apparatus projects an image on the screen at a maximum output gradation value;
a reference luminance value setting unit configured to set a reference luminance value to be higher than the peak luminance value;
a relation information setting unit configured to set, based on the reference luminance value and the peak luminance value, relation information indicating a relation between an output gradation value and a light output value that is intensity of light for displaying an output image from the projection apparatus;
an output gradation value setting unit configured to set an output gradation value based on the input data and the relation information; and
an output control unit configured to output an image based on the output gradation value generated by the output gradation value setting unit.