Patent ID: 11962920
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. An imaging device, comprising:
a pixel array section including a plurality of pixels, wherein the plurality of pixels includes light receiving elements;
a region-of-interest detector configured to detect a specific region, as a region of interest, in a captured image based on a result of comparison between image information of a current imaging frame and image information preceding by at least one imaging frame, wherein
the region of interest corresponds to a region having motion in the captured image,
the region-of-interest detector is further configured to include an image memory, a comparison section, a movement amount memory, and a region-of-interest determination section,
the image memory is configured to hold the image information preceding by the at least one imaging frame,
the comparison section is configured to acquire a difference absolute value between the image information of the current imaging frame and the image information held in the image memory,
the movement amount memory is further configured to store the difference absolute value as a movement amount from a past image to a current image, and
the region-of-interest determination section is further configured to determine the region of interest based on the movement amount stored in the movement amount memory;

a first pixel control section configured to control a first read out of a plurality of pixel signals of the plurality of pixels at a first frame rate;
a second pixel control section configured to control a second read out of a first set of pixel signals of a first set of pixels in the specific region in the pixel array section at a second frame rate, wherein
the plurality of pixels includes the first set of pixels, and
the second frame rate is higher than the first frame rate; and

an analog-to-digital conversion section configured to execute an analog-to-digital conversion on a pixel signal, of each pixel of the plurality of pixel signals, read out by one of the first pixel control section or the second pixel control section.