Patent ID: 8885964
Filing Date: 2014-11-11
Classification: G06K

Abstract:
1. A projector projecting and displaying an image on a projection plane, comprising: a frame image storage unit that stores input image data input to the projector; a block image storage unit that has a smaller capacity than that of the frame image storage unit and that stores a part of the input image data in terms of block image data including M×N (where M and N≧ a correction processing unit, controlled by a processor, that performs a correction process of correcting a distortion of the image projected onto the projection plane to generate corrected image data which is image data after correction on the basis of the block image data stored in the block image storage unit; a block image predicting unit, controlled by a processor, that: a tag information storage unit that stores tag information including coordinate information representing at least one of an x coordinate which is a coordinate in a line direction in the input image data stored in a block area and a y coordinate which is a coordinate in a pixel direction therein as information about the block area storing one piece of the block image data in the block image storage unit, wherein the block image predicting unit predicts the block image data on the basis of the tag information stored in the tag information storage unit and a processing direction of the correction process, and wherein the tag information stored in the tag information storage unit is stored in a same line as a line of a corresponding block area of the block image storage unit.