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公开(公告)号：US12096129B2
公开(公告)日：2024-09-17
申请号：US17652416
申请日：2022-02-24
发明人： Zuguang Xiao , Lee-Kang Liu , Loic Francois Segapelli , Ho Sang Lee , Jiafu Luo , Wenbin Wang , Silei Ma
IPC分类号： H04N23/741 , H04N23/73 , H04N23/743
CPC分类号： H04N23/741 , H04N23/73 , H04N23/743
摘要： This disclosure provides systems, methods, and devices for image signal processing. In a first aspect, a method of image processing includes controlling an image sensor to capture image data for determining a standard dynamic range (SDR) representation of a scene, the image data comprising a first series of image frames captured with a first exposure level and a second series of image frames captured at a second exposure level. The SDR representation of the scene may be generated by determining a first output image frame based on at least a first image frame of the first series of image frames. Determining of an exposure level for the image sensor during the SDR image capture may be based on a second image frame of the second series of image frames captured by the image sensor in a multi-frame sensor configuration. Other aspects and features are also claimed and described.
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公开(公告)号：US11687316B2
公开(公告)日：2023-06-27
申请号：US16802984
申请日：2020-02-27
发明人： Ying Noyes , Ho Sang Lee
CPC分类号： G06F3/167 , G10L15/183 , H04N9/3182 , H04N23/60 , H04N23/61 , H04N23/70
摘要： Methods, devices, and systems for determining image capture settings based on an audio input are disclosed. In some aspects, a device includes a memory, a camera including a lens and a sensor, and a processor coupled to the camera and the memory. The processor may be configured to receive an audio input, determine contextual information based on the audio input, determine one or more image capture settings based on the contextual information, and output the one or more image capture settings.
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公开(公告)号：US20190253682A1
公开(公告)日：2019-08-15
申请号：US16134087
申请日：2018-09-18
摘要： Aspects of the present disclosure relate to systems and methods for performing automatic white balance (AWB). An example device may include a memory and a processor coupled to the memory. The processor may be configured to receive a first image of a scene, measure a first illuminant of the first received image, compare the first illuminant and a first illuminant value, determine the scene is changing between the first received image and a previous image based on the comparison, adjust a first AWB convergence rate to a second AWB convergence rate in response to determining the scene is changing, and converge from a first balancing factor to a second balancing factor for one or more white balance operations based on the second AWB convergence rate.
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公开(公告)号：US10735704B2
公开(公告)日：2020-08-04
申请号：US16134087
申请日：2018-09-18
摘要： Aspects of the present disclosure relate to systems and methods for performing automatic white balance (AWB). An example device may include a memory and a processor coupled to the memory. The processor may be configured to receive a first image of a scene, measure a first illuminant of the first received image, compare the first illuminant and a first illuminant value, determine the scene is changing between the first received image and a previous image based on the comparison, adjust a first AWB convergence rate to a second AWB convergence rate in response to determining the scene is changing, and converge from a first balancing factor to a second balancing factor for one or more white balance operations based on the second AWB convergence rate.
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公开(公告)号：US11671714B1
公开(公告)日：2023-06-06
申请号：US17583033
申请日：2022-01-24
发明人： Zuguang Xiao , Ho Sang Lee , Wenbin Wang , Nan Cui
IPC分类号： H04N23/73 , H04N23/743 , H04N23/68
CPC分类号： H04N23/73 , H04N23/6811 , H04N23/6845 , H04N23/743
摘要： Systems and techniques are described herein for capturing images. For instance, a process can include obtaining a first image associated with a first exposure setting and obtaining a second image associated with a second exposure setting that is different from the first exposure setting. The process can include obtaining motion information associated with at least one of the first image and the second image and determining, based on the motion information, that motion associated with a first pixel of the first image exceeds a threshold. The process can include generating, based on the motion information, a fused image including a first set of pixels from the first image and a second set of pixels from the second image. The first set of pixels from the first image includes the first pixel based on the determination that the motion associated with the first pixel exceeds the threshold.
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公开(公告)号：US20230144172A1
公开(公告)日：2023-05-11
申请号：US17454547
申请日：2021-11-11
发明人： Micha Galor Gluskin , Ho Sang Lee
CPC分类号： H04N5/232935 , H04N5/232127 , H04N5/232939 , G06T7/50 , G06T5/002 , H04N5/2628 , G06F3/04842
摘要： A device for image capture includes a memory configured to store a preview image, and one or more processors coupled to the memory and configured to receive a user selection to focus at a region of the preview image stored in the memory, determine whether there is image content at different depths in the region, based on the determination that there is image content at different depths in the region, output an alternative version of the image content in the region, receive a subsequent user selection within the alternative version, and control a focus level for a camera based on the subsequent user selection.
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公开(公告)号：US11375142B1
公开(公告)日：2022-06-28
申请号：US17471738
申请日：2021-09-10
摘要： Methods, systems, and devices for asymmetric exposure time adjustments for multi-frame (MF) high dynamic range (HDR) imaging in low light conditions are described. In some implementations, a device may receive a set of frames including short exposure frames associated with a first exposure time and long exposure frames associated with a second exposure time and may adjust the second exposure time associated with the long exposure frames to obtain a third exposure time for the long exposure frames based on detecting a low light condition associated with the set of frames. The device may adjust the second exposure time associated with the long exposure frames to obtain the third exposure time for the long exposure frames based on adding, at an image sensor of the device, an additional set of blanking lines to a set of visible lines associated with the short exposure frames.
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公开(公告)号：US11070738B2
公开(公告)日：2021-07-20
申请号：US16591543
申请日：2019-10-02
发明人： Loic Francois Segapelli , Ho Sang Lee , Ying Noyes
摘要： Methods, systems, and devices for operating a camera-enabled device are described. The camera-enabled device may emit, via a first light emitting source, an infrared light in a physical environment and determine time-of-flight information associated with a target object in the physical environment based on the emitted infrared light. The camera-enabled device may estimate one or more exposure settings based on the time-of-flight information, and emit, via a second light emitting source, a visible light in the physical environment based on the estimated one or more exposure settings. As a result, the camera-enabled device may capture an image of the physical environment based on the emitted visible light and the estimated one or more exposure settings.
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公开(公告)号：US20200036888A1
公开(公告)日：2020-01-30
申请号：US16046408
申请日：2018-07-26
发明人： Ho Sang Lee , Soman Ganesh Nikhara
摘要： Methods, systems, and apparatuses are provide to perform automatic white balancing. For example, the methods receive, from a plurality of sensing elements in a sensor array, first image data corresponding to an image of a target scene that includes a human face. The methods also detect a region of the image that includes the human face, identify a portion of the first image data that corresponds to the detected region, and compute first gain values based on the identified portion of the first image data and reference image data that characterizes the human face. Further, the methods perform an automatic white balancing operation on the first image data based on the first gain values.
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公开(公告)号：US20180124317A1
公开(公告)日：2018-05-03
申请号：US15585874
申请日：2017-05-03
发明人： Jun Liu , Tao Shen , Wenbiao Wang , Ying Xie Noyes , Hengzhou Ding , Ho Sang Lee , Yonggui Mao , Wei Zou , Rengaraj Thirupathi , Aravind Bhaskara
CPC分类号： H04N5/23245 , G06F1/3206 , G06F1/3287 , G06K9/4652 , G06K9/6202 , G06K9/6298 , H04M1/73 , H04N5/232 , H04N5/23203 , H04N5/23212 , H04N5/23241 , H04N5/23251 , H04N5/2352 , H04N5/351 , H04N9/04 , H04N9/73 , H04N9/735
摘要： An image capture device that includes an adjustment circuit configured to monitor image parameters, generate updated image settings for the image capture device in response to the monitored image parameters, and transmit the updated image settings to one or more processors. The updated image settings configure the one or more processors to determine whether to transition the image capture device from a dynamic scene mode to a static scene mode based on a first image parameter included in the monitored image parameters, wherein the first image parameter is different from a second image parameter used to determine to transition the image capture device from the static scene mode to the dynamic scene mode, and to suspend generation of all or less than all of the updated image settings in response to determining to transition the image capture device from the dynamic scene mode to the static scene mode.
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