US 2026/0247014 A1Published application

Motion-Triggered Fast Shutter and Readout

AssigneeGoogle Inc.

InventorVickie Youmin Wu

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Abstract

The present document describes techniques for motion-triggered fast shutter and readout. The techniques described herein reduce motion disparity and rolling shutter effects associated with capturing images of a fast-moving object. Further, these techniques achieve an adaptive system that provides fast shutter speed as needed, minimizes rectifying post processes, and reduces power waste on stationary-like scene areas. In implementations, a camera system includes a pair of synchronized image sensors (e.g., a main sensor and a companion sensor). The companion sensor, running at a higher frame rate and a lower resolution than the main sensor, detects motion and provides motion information (e.g., area of motion and velocity of a moving object) to the main image sensor. The main image sensor uses a dedicated analog-to-digital converter (ADC) circuitry to increase a shutter speed and readout for pixels inside the motion area.

Claims21

Dependent claims

A method for implementing motion-triggered fast shutter and readout, the method comprising:

initializing first and second image sensors of an electronic device, the first and second image sensors sharing a same field of view and being synchronized together by a microcontroller of the electronic device;
generating image data using each of the first and second image sensors, the second image sensor using a higher frame rate and a lower resolution than the first image sensor;
detecting, by the second image sensor, a moving object within the field of view;
responsive to detecting the moving object, determining, by the second image sensor, motion information associated with the moving object, the motion information including a speed of the moving object and a region of interest within the field of view that includes the moving object;
based on the motion information determined by the second image sensor, increasing a shutter speed and readout of the first image sensor for the region of interest within the field of view to provide additional image data for the region of interest;
and
generating an image for display based at least on the image data of the first image sensor and the additional image data of the first image sensor for the region of interest.

4 more elements

A camera device comprising:

a first image sensor configured to capture images;
a second image sensor sharing a same field of view as the first image sensor, the second image sensor configured to:
use a higher frame rate and a lower resolution than the first image sensor;
detect a moving object within the field of view;
and
responsive to detection of the moving object, determine motion information associated with the moving object, the motion information including a speed of the moving object and a region of interest within the field of view that includes the moving object;
and
a controller configured to:
synchronize the first and second image sensors;
generate image data using each of the first and second image sensors;
based on the motion information determined by the second image sensor, increase a shutter speed and readout of the first image sensor for the region of interest within the field of view to provide additional image data for the region of interest;
and
generate an image for display based at least on the image data of the first image sensor and the additional image data of the first image sensor for the region of interest.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/165,042Filed 5 Jun 2023
Published: 20 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04N 23/45
Cameras or camera modules comprising electronic image sensors; Control thereof: for generating image signals from two or more image sensors being…
G06V 10/25
Image preprocessing: determination of region of interest [ROI] or a volume of interest [VOI]
H04N 23/689
For stable pick-up of the scene, e.g. compensating for camera body vibrations: motion occurring during a rolling shutter mode
H04N 25/40
Circuitry of solid-state image sensors [SSIS]; Control thereof: extracting pixel data from image sensors by controlling scanning circuits, e.g. by…