Amazon Technologies, Inc.

Griffin Alexander Jarmin

Saral Jain

Bo Chen

Hasan Tuna Icingir

Riccardo Gherardi

Described is a method for processing image data to determine if a portion of the image data is affected due to sunlight. In some implementations, image data is sent to an image data store and camera parameters are sent to a radiance detection service. The radiance detection service, upon receiving the camera parameters, retrieves the image data, converts the image data to gray-scale and processes the image data based on the camera parameters to determine a radiance value for the camera. The radiance value may be compared to a baseline radiance value to determine if sunlight is represented in the image data. In some implementations, a baseline model may be developed for the camera and used to cancel out any pixels of the image data that are overexposed under normal or baseline conditions. Likewise, a foreground model may be generated to detect any objects in the image data for which corresponding pixel values should not be considered for determining if sunlight is represented in the image data.

Detecting overexposure in images from sunlight

Detecting overexposure in images from illumination

System for determining  a camera radiance

Detecting sunlight in images

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Seattle, WA, United States of America

Griffin Alexander Jarmin