Methods and systems for user guided automatic exposure control

摘要

In accordance with one or more embodiments of the invention, methods and systems for user guided automatic exposure control. Multiple sequential user settings for ordered choices of image capture settings and associated limit values are used to determine values of image capture settings including aperture, shutter speed, and ISO, such that a proper exposure is obtained within the guides set by a user.

主权项

1. A method comprising:
receiving data representative of a user setting for a first choice of image capture settings to be increased in order to achieve a proper exposure for image capture, said first choice of image capture settings being selected from a group comprising aperture, shutter speed, and ISO; receiving data representative of an upper limit value to which said first choice of image capture settings is to be increased; receiving data representative of a user setting for a second choice of image capture settings to be increased in order to achieve a proper exposure for image capture, said second choice of image capture settings being selected from said group comprising aperture, shutter speed, and ISO, said second choice of image capture settings to be increased being different from said first choice of image capture settings to be increased; receiving data representative of an upper limit value to which said second choice of image capture settings is to be increased; receiving data representative of a user setting for a third choice of image capture settings to be increased in order to achieve a proper exposure for image capture, said third choice of image capture settings being selected from said group comprising aperture, shutter speed, and ISO, said third choice of image capture settings to be adjusted being different from said second choice of image capture settings to be increased; receiving data representative of an upper limit value to which said third choice of image capture settings is to be increased; determining a proper exposure for a scene to be captured; and determining values of image capture settings for said scene to be captured, said image capture settings comprising aperture, shutter speed, and ISO, where said values of image capture settings are those that would result from increasing each respective image capture setting, up to each respective upper limit value corresponding to each image capture setting, sequentially from said first choice of image capture setting, to said second choice of image capture setting, to said third choice of image capture setting, and to any additional sequential choices of user-selected image capture settings, up to their respective upper limit values, in their respective order, until either a proper exposure would be attained or until each sequential choice of image capture setting has been set to its respective upper limit value.