Patent ID: 8970766
Filing Date: 2015-03-03
Classification: H04N

Abstract:
1. An imaging device, comprising: an image data interface unit that outputs image data according to a pixel signal input from a solid-state imaging device as first image data; an image data reading unit that reads image data stored in a storage unit via a data bus, and outputs the read image data as second image data; an image synthesizing unit that generates and outputs third image data in which image data based on the first image data is synthesized with image data based on the second image data; an evaluation value generating unit that generates an evaluation value based on input image data; an image data writing unit that stores input image data in the storage unit via the data bus; a second image data selecting unit that selects any one of the image data based on the first image data, and the third image data as image data to be input to the image data writing unit; a display unit that reads the third image data stored in the storage unit by the image data writing unit, from the storage unit via the data bus, and displays an image corresponding to the read third image data; and an image reducing unit that is arranged between the image data interface unit and the image synthesizing unit, and generates and outputs sixth image data in which input image data is reduced to a predetermined size, wherein the image data interface unit sequentially outputs the plurality of first image data according to the pixel signal input from the solid-state imaging device during a unit period of time in which the display unit updates a display of an image, the second image data selecting unit selects the image data based on the first image data, which is initially output from the image data interface unit after the unit period of time of the display unit starts, as the image data to be input to the image data writing unit, and then selects the third image data sequentially input until the unit period of time of the display unit ends as the image data to be input to the image data writing unit, the image data writing unit sequentially stores the third image data input subsequently to the input initial image data based on the first image data in the storage unit, the image data reading unit sequentially reads the third image data stored in the storage unit, subsequently to the initial image data based on the first image data stored in the storage unit as the second image data, the image synthesizing unit sequentially outputs the third image data in which the image data based on the first image data sequentially output from the image data interface unit is sequentially synthesized with the image data based on the second image data read by the image data reading unit, the display unit displays an image corresponding to the third image data that is stored in the storage unit and finally synthesized by the image synthesizing unit when the unit period of time of the display unit ends, the evaluation value generating unit sequentially generates an evaluation value based on the sequentially input image data.