CALCULATION DEVICE AND IMAGE PICKUP DEVICE USING CALCULATION DEVICE AND CALCULATION METHOD

摘要

Highly accurate focus adjustment device can be provided, for example, that includes a focus detection area setting unit that sets a focus detection area to a position of a face detected in an image pickup field angle, and sets a luminance addition number and a correlation addition number in the focus detection area according to a size of the face, and performs focus detection for the face, thereby to suppress a decrease in accuracy.

主权项

1. A calculation device that calculates a defocus amount using a parallax image signal output from an image pickup element, the calculation device comprising:
a calculation unit configured to acquire a first correlation signal of the parallax image signal, composite a plurality of the first correlation signals to acquire a second correlation signal, and calculate the defocus amount based on the second correlation signal; and a detection unit configured to detect a predetermined object, wherein a composite amount of signals from the image pickup element in acquiring the first correlation signal of a case where a size of the object detected in the detection unit is smaller than a predetermined amount is smaller than a composite amount of signals from the image pickup element in acquiring the first correlation signal of a case where the size of the object detected in the object detection unit is the predetermined amount or more, and a composite amount of the first correlation signals in acquiring the second correlation signal of a case where the size of the object detected in the object detection unit is smaller than the predetermined amount is larger than a composite amount of the first correlation signals in acquiring the second correlation signal of a case where the size of the object detected in the object detection unit is the predetermined amount or more.