Projector for performing trapezoidal distortion correction and method of controlling projector

摘要

A projector includes a deformation ratio calculating unit that calculates a first deformation ratio on a reference point set in a first image when performing a correction process with respect to a first image data, a deformation ratio determination unit that determines a second deformation ratio of the first image based on the first deformation ratio calculated by the deformation ratio calculation unit, a synthesis image generation unit that generates synthesis image data indicating a synthesis image which is generated by synthesizing a second image indicated by second image data and the first image with a size changed based on the second deformation ratio, a correction unit that performs a correction process with respect to the synthesis image data, and a projection unit that projects the synthesis image based on the synthesis image data which is subjected to the correction process.

主权项

1. A projector comprising:
an OSD deformation ratio calculating unit that calculates an OSD deformation ratio on a reference point which is set in an OSD image superimposed on a main image, when performing a correction of a trapezoidal distortion with respect to OSD data for the OSD image; an OSD enlargement ratio determination unit that determines an OSD enlargement ratio of the OSD image for changing a size of the OSD image based on the calculated OSD deformation ratio; an image synthesis unit that generates synthesis image data for a synthesis image which is generated by synthesizing the main image and the OSD image superimposed on the main image with a size of the OSD image determined based on the OSD enlargement ratio; a trapezoidal distortion correction unit that corrects the trapezoidal distortion with respect to the synthesis image data; and a projection optical system that projects the synthesis image based on the synthesis image data which is subjected to the correction of the trapezoidal distortion, wherein when the calculated OSD deformation ratio indicates the OSD image is contracted by the correction of the trapezoidal distortion, the OSD enlargement ratio determination unit determines the OSD enlargement ratio so as to enlarge the OSD image.