08-04-2021 дата публикации
Номер: US20210103201A1
Принадлежит:
Methods, systems, and devices for image processing are described. Devices with one or more sensors (e.g., devices with multiple cameras, such as a dual camera device) may perform flash metering techniques, using an auxiliary camera, during a flash duration used for main camera image capture. For example, a dual camera device may control camera flash parameters (e.g., flash duration, flash power), via auxiliary camera flash metering, during main camera image capture (e.g., during main camera exposure for image capture operations). A main camera may begin exposure and a flash may be initiated. During the flash, an auxiliary camera may be configured to perform flash metering operations (e.g., via images captured by the auxiliary camera). Based on flash metering information from the auxiliary camera, the dual camera device may configure or adjust camera settings (e.g., exposure settings, flash duration, flash end time, flash power) during main camera exposure and image capture. 1. A method for image processing at a device , comprising:configuring an auxiliary camera with a first frame rate and a main camera with a second frame rate;initiating capturing an image using the main camera;performing, using the auxiliary camera and while capturing the image using the main camera, light metering during a duration of a flash used by the main camera;determining, during the duration and while capturing the image using the main camera, a flash end time based at least in part on the light metering;deactivating, while capturing the image using the main camera, the flash used by the main camera based at least in part on the flash end time; andending capturing the image by the main camera after deactivating the flash.2. The method of claim 1 , further comprising:configuring the auxiliary camera with a first exposure time and the main camera with a second exposure time longer than the first exposure time, wherein the ending of the capturing of the image occurs after an end of the second ...
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