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公开(公告)号：US10992845B1
公开(公告)日：2021-04-27
申请号：US16565965
申请日：2019-09-10
Applicant: Apple Inc.
Inventor： Richard D. Seely , Shuang Gao , Alexandre Naaman , Patrick Shehane
Abstract: This disclosure relates to techniques for synthesizing out of focus blurring effects in digital images. Cameras having wide aperture lenses typically capture images with a shallow depth of field (SDOF). SDOF cameras are often used in portrait photography, since they emphasize subjects, while deemphasizing the background via blurring. Simulating this kind of blurring using a large depth of field (LDOF) camera may require a large amount of computational resources, i.e., to simulate the physical effects of using a wide aperture lens, while constructing a synthetic SDOF image. Moreover, cameras having smaller lens apertures, such as those in mobile phones, may not have the ability to accurately estimate or recreate the true color of clipped background light sources. Described herein are techniques to synthesize out of focus background blurring effects that attempt to reproduce accurate light intensity and color values for clipped background light sources in images captured by LDOF cameras.
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公开(公告)号：US11682108B2
公开(公告)日：2023-06-20
申请号：US17473531
申请日：2021-09-13
Applicant: Apple Inc.
Inventor： Richard D. Seely , Alexandre Naaman , Patrick Shehane , Andre Souza Dos Santos , Behkish J. Manzari
CPC classification number: G06T5/003 , G06V30/19127 , G06T2200/24
Abstract: This disclosure relates to various implementations that dynamically adjust one or more shallow depth of field (SDOF) parameters based on a designated, artificial aperture value. The implementations obtain a designated, artificial aperture value that modifies an initial aperture value for an image frame. The designated, artificial aperture value generates a determined amount of synthetically-produced blur within the image frame. The implementations determine an aperture adjustment factor based on the designated, artificial aperture value in relation to a default so-called “tuning aperture value” (for which the camera's operations may have been optimized). The implementations may then modify, based on the aperture adjustment factor, one or more SDOF parameters for an SDOF operation, which may, e.g., be configured to render a determined amount of synthetic bokeh within the image frame. In response the modified SDOF parameters, the implementations may render an updated image frame that corresponds to the designated, artificial aperture value.
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公开(公告)号：US20210407050A1
公开(公告)日：2021-12-30
申请号：US17473531
申请日：2021-09-13
Applicant: Apple Inc.
Inventor： Richard D. Seely , Alexandre Naaman , Patrick Shehane , Andre Souza Dos Santos , Behkish J. Manzari
IPC: G06T5/00
Abstract: This disclosure relates to various implementations that dynamically adjust one or more shallow depth of field (SDOF) parameters based on a designated, artificial aperture value. The implementations obtain a designated, artificial aperture value that modifies an initial aperture value for an image frame. The designated, artificial aperture value generates a determined amount of synthetically-produced blur within the image frame. The implementations determine an aperture adjustment factor based on the designated, artificial aperture value in relation to a default so-called “tuning aperture value” (for which the camera's operations may have been optimized). The implementations may then modify, based on the aperture adjustment factor, one or more SDOF parameters for an SDOF operation, which may, e.g., be configured to render a determined amount of synthetic bokeh within the image frame. In response the modified SDOF parameters, the implementations may render an updated image frame that corresponds to the designated, artificial aperture value.
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公开(公告)号：US11120528B1
公开(公告)日：2021-09-14
申请号：US16565985
申请日：2019-09-10
Applicant: Apple Inc.
Inventor： Richard D. Seely , Alexandre Naaman , Patrick Shehane , Andre Souza Dos Santos , Behkish J. Manzari
IPC: G06T5/00
Abstract: This disclosure relates to various implementations that dynamically adjust one or more shallow depth of field (SDOF) parameters based on a designated, artificial aperture value. The implementations obtain a designated, artificial aperture value that modifies an initial aperture value for an image frame. The designated, artificial aperture value generates a determined amount of synthetically-produced blur within the image frame. The implementations determine an aperture adjustment factor based on the designated, artificial aperture value in relation to a default so-called “tuning aperture value” (for which the camera's operations may have been optimized). The implementations may then modify, based on the aperture adjustment factor, one or more SDOF parameters for an SDOF operation, which may, e.g., be configured to render a determined amount of synthetic bokeh within the image frame. In response the modified SDOF parameters, the implementations may render an updated image frame that corresponds to the designated, artificial aperture value.
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