Patent ID: 9007479
Filing Date: 2015-04-14
Classification: G06T,H04N

Abstract:
1. An imaging apparatus 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 and outputs the read image data as second image data; an evaluation value generation unit that generates an evaluation value based on input image data; an image data selection unit that selects one of image data based on the first image data and image data based on the second image data as image data to be input to the evaluation value generation unit; an image data writing unit that stores the image data based on the first image data in the storage unit; a first preprocessing unit that performs a predetermined process on input image data; and a second preprocessing unit that performs a predetermined process on input image data, wherein the first preprocessing unit outputs, as third image data, image data obtained by performing a predetermined process on one of the first image data and the second image data to be input, the second preprocessing unit outputs, as fourth image data, image data obtained by performing a predetermined process on the other of the first image data and the second image data to be input, the image data selection unit selects one of the third image data and the fourth image data as the image data to be input to the evaluation value generation unit, the image data writing unit stores one of the third image data and the fourth image data based on the first image data in the storage unit, the first preprocessing unit is at least one processing unit that performs a predetermined correction process on input image data, the second preprocessing unit is at least one delay unit that performs a process of delaying input image data by a predetermined time and outputting delayed image data, the predetermined time is the same time as a delay time from a time when the image data is input to the first preprocessing unit to a time when the image data is subjected to the predetermined correction process and output, when the evaluation value generation unit generates an evaluation value based on the image data according to the pixel signal input from the solid-state imaging device, the image data selection unit selects one of the third image data and the fourth image data based on the first image data as the image data to be input to the evaluation value generation unit, and when the evaluation value generation unit generates an evaluation value based on the image data stored in the storage unit, the image data selection unit selects one of the third image data and the fourth image data based on the second image data as the image data to be input to the evaluation value generation unit.