Back to results
US 2026/0156368 A1Published application
Object-Based High-Dynamic-Range Image Capturing
AssigneeGoogle Inc.
InventorVickie Youmin Wu
Life of this patent
Estimating the term…
Abstract
This document describes systems and techniques for object-based high-dynamic-range image capturing. In aspects, an image-capturing device can adjust an electronic shutter speed for one or more units of pixels of an image sensor based on luminous level statistical information of detected objects in a captured frame. In this way, the one or more units of pixels configured with modified electronic shutter speeds can capture incident light of a scene in a successive frame with adapted exposure for each object.
Claims20
A method for scenic high-dynamic-range image capturing, the method comprising:
- generating a first downsampled grayscale image based on a first frame, the first frame comprising pixel data of a first scene;
- performing object detection on the first downsampled grayscale image sufficient to detect one or more objects within the first scene;
- determining one or more first object boundaries for each of the one or more detected objects;
- collecting, responsive to the determination of the one or more first object boundaries, luminous level statistical information of regions defined by each of the one or more first object boundaries;
- zoning the first frame based on the luminous level statistical information sufficient to form at least one zone, the at least one zone corresponding to at least one first unit of pixels of a pixel array at an image sensor;
- and
- adjusting an electronic shutter speed of the at least one first unit of pixels sufficient to increase or decrease an exposure time.
4 more elements
A computing system comprising:
- a pixel array of an image sensor;
- one or more processors;
- and
- computer-readable instructions which, when executed by the processor, cause the computing system to:
- generate a first downsampled grayscale image based on a first frame, the first frame comprising pixel data of a first scene;
- perform object detection on the first downsampled grayscale image sufficient to detect one or more objects within the first scene;
- determine one or more first object boundaries for each of the one or more detected objects;
- collect, responsive to the determination of the one or more first object boundaries, luminous level statistical information of regions defined by each of the one or more first object boundaries;
- zone the first frame based on the luminous level statistical information sufficient to form at least one zone, the at least one zone corresponding to at least one first unit of pixels of a pixel array at an image sensor;
- and
- adjust an electronic shutter speed of the at least one first unit of pixels sufficient to increase or decrease an exposure time.
8 more elements
Dependencies are inferred from the claim text.