JP2018066931A5

JP2018066931A5 -

Info

Publication number: JP2018066931A5
Application number: JP2016206720A
Authority: JP
Filing date: 2016-10-21
Publication date: 2019-11-28
Anticipated expiration: 2036-10-21

Claims

A pixel array in which a plurality of pixels are arranged in a matrix;
A first calculation unit that calculates a phase difference evaluation value for focus detection by a phase difference detection method based on a signal from a phase difference detection pixel included in the plurality of pixels;
A signal for compensating for a defect that occurs in an image signal acquired by the pixel array and is generated when the phase difference detection pixel is included in the plurality of pixels. An interpolation processing unit that generates by interpolation using signals from the pixels other than the pixels;
A second calculation unit that calculates a contrast evaluation value for focus detection by a contrast detection method based on the image signal including the signal generated by the interpolation by the interpolation processing unit. Solid-state image sensor.

If the calculation of the phase difference evaluation value is completed by the first calculation unit of which is independent of the completion of output of the image signal obtained by the pixel array, it outputs the phase difference evaluation value The solid-state imaging device according to claim 1.

The pixel array is formed on a first semiconductor chip;
The first calculation unit, the interpolation processing unit, and the second calculation unit are formed on a second semiconductor chip different from the first semiconductor chip,
The solid-state imaging device according to claim 1, wherein the first semiconductor chip and the second semiconductor chip are stacked.

The solid-state imaging device according to claim 1, wherein the image signal interpolated by the interpolation processing unit is output.

5. The phase difference evaluation value and the contrast evaluation value are output via an output terminal different from an output terminal from which the image signal interpolated by the interpolation processing unit is output. The solid-state imaging device according to any one of the above.

6. The signal readout from the row including the phase difference detection pixel is performed in parallel with the readout of the signal from the row not including the phase difference detection pixel. The solid-state imaging device according to item 1.

The pixel array includes a plurality of the phase difference detection pixels,
The plurality of phase difference detection pixels include a first phase difference detection pixel that acquires a signal according to a light beam that passes through a first pupil region of an exit pupil of the imaging optical system, and the first phase difference detection pixel. A second phase difference detection pixel that acquires a signal according to a light flux that passes through a second pupil region different from the pupil region of
The first calculation unit calculates the phase difference evaluation value based on signals from the first phase difference detection pixel and the second phase difference detection pixel. The solid-state image sensor of any one of thru | or 6.

A phase difference evaluation value for focus detection by a phase difference detection method based on a signal from a phase difference detection pixel included in the plurality of pixels of a pixel array in which a plurality of pixels are arranged in a matrix. Calculating steps,
A signal for compensating for a defect that occurs in an image signal acquired by the pixel array and is generated when the phase difference detection pixel is included in the plurality of pixels. Generating by interpolation using signals from said pixels other than pixels;
A method for controlling a solid-state imaging device, comprising: calculating a contrast evaluation value for focus detection by a contrast detection method based on the image signal including the signal generated by the interpolation.

A pixel array in which a plurality of pixels are arranged in a matrix and a phase difference evaluation value for focus detection by a phase difference detection method are used as signals from the phase difference detection pixels included in the plurality of pixels. A defect that occurs in the image signal acquired by the first calculation unit calculated based on the pixel array, and the defect that occurs when the phase difference detection pixel is included in the plurality of pixels. An interpolation processing unit that generates a signal for compensation by interpolation using a signal from the pixel other than the phase difference detection pixel, and a contrast evaluation value for focus detection by a contrast detection method is determined by the interpolation processing unit. A solid-state imaging device having a second calculation unit for calculating based on the image signal including the signal generated by the interpolation;
An image pickup apparatus comprising: a control unit that performs control for driving a focus lens based on the phase difference evaluation value and the contrast evaluation value.

When the calculation of the phase difference evaluation value is completed by the first calculation unit, the phase difference evaluation value is output regardless of whether the output of the image signal acquired by the pixel array is completed. The imaging apparatus according to claim 9 .

The pixel array is formed on a first semiconductor chip;
The first calculation unit, the interpolation processing unit, and the second calculation unit are formed on a second semiconductor chip different from the first semiconductor chip,
The imaging device according to claim 9 or 10, wherein the first semiconductor chip and the second semiconductor chip are stacked .

The imaging apparatus according to claim 9, wherein the image signal interpolated by the interpolation processing unit is output .

13. The phase difference evaluation value and the contrast evaluation value are output via an output terminal different from an output terminal from which the image signal interpolated by the interpolation processing unit is output. The imaging device according to any one of the above .

14. The readout of a signal from a row including the phase difference detection pixels is performed in parallel with the readout of a signal from a row not including the phase difference detection pixels. The imaging apparatus according to item 1 .

The pixel array includes a plurality of the phase difference detection pixels,
The plurality of phase difference detection pixels include a first phase difference detection pixel that acquires a signal according to a light beam that passes through a first pupil region of an exit pupil of the imaging optical system, and the first phase difference detection pixel. A second phase difference detection pixel that acquires a signal corresponding to a light flux that passes through a second pupil region different from the pupil region of
The first calculation unit calculates the phase difference evaluation value based on signals from the first phase difference detection pixel and the second phase difference detection pixel. 15. The imaging device according to any one of 1 to 14 .

  Light emitting means for emitting light to the subject;
  An operation means for accepting an operation input by a user;
  Display means for displaying an image; and
  Recording means for recording image data
The imaging device according to claim 9, further comprising at least one of the following.