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公开(公告)号：US20240428368A1
公开(公告)日：2024-12-26
申请号：US18338272
申请日：2023-06-20
Applicant: QUALCOMM Incorporated
Inventor： Vinay Thomas , David Berrebi , Victor Pinto , George Patsilaras , Roee Hardoon , Shruti Krishnamurthy , Weiliang Liu , Lingfeng Li , Alain Artieri , Abhilash Shivashankara Pillai
IPC: G06T1/60 , G06F12/0891
Abstract: This disclosure provides systems, methods, and devices for image signal processing that support efficient cache usage in an image processing system. In a first aspect, a method of image processing includes storing, by an image processor, a first portion of a first stripe of a first frame in a cache, the first portion of the first stripe overlapping a second portion of a second stripe of the first frame, reading, by the image processor, a third portion of the second stripe from a memory, reading, by the image processor, the first portion of the first stripe from the cache, and processing, by the image processor, the second stripe using the first portion of the first stripe and the third portion of the second stripe. Other aspects and features are also claimed and described.
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公开(公告)号：US12028609B2
公开(公告)日：2024-07-02
申请号：US17133221
申请日：2020-12-23
Applicant: QUALCOMM Incorporated
Inventor： Shizhong Liu , Jianfeng Ren , Weiliang Liu , Nikhil Uchil , Jincheng Huang , Sahul Madanayakanahalli Phaniraj Venkatesh , Krishnankutty Kolathappilly , Wei Zou
IPC: H04N23/667 , H04N23/45 , H04N23/69 , H04N23/80
CPC classification number: H04N23/667 , H04N23/45 , H04N23/69 , H04N23/80
Abstract: Disruptions in the continuity of image frames output from an image capture device due to switching from one image sensor to another image sensor of the device may be reduced or eliminated through controlled timing for switching of the image sensors according to a predefined image sensor configuration. Operation of a multi-sensor image device according to the predefined image sensor configuration may include an appropriate selection of a source for image adjustment during the zoom level transition. The predefined image sensor configuration may define transition parameters for particular zoom ranges of the image capture device.
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公开(公告)号：US11509837B2
公开(公告)日：2022-11-22
申请号：US17009285
申请日：2020-09-01
Applicant: QUALCOMM Incorporated
Inventor： Weiliang Liu , Shizhong Liu , Tao Ma , Jianfeng Ren
Abstract: In general, techniques are described regarding initiating a recursive blending of a plurality of frames following a camera transition. One or more processors may, subsequent to a transition from a first camera mode to a second camera mode, blend one or more pixels of a first frame with one or more pixels of a second frame to produce a first blended frame, the first frame captured via a first camera, and the second frame captured via a second camera. The one or more processors may then output the first blended frame.
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公开(公告)号：US12160670B2
公开(公告)日：2024-12-03
申请号：US17744454
申请日：2022-05-13
Applicant: QUALCOMM Incorporated
Inventor： Kevin Yao Han , Narayana Karthik Ravirala , Satyajit Giri , Shizhong Liu , Weiliang Liu
IPC: H04N23/741 , H04N23/73
Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media to capture images with subjects at different depths of fields. A method of processing image data includes capturing an image associated with a first exposure; capturing a plurality of images associated with at least a second exposure, the second exposure being less than the first exposure; generating a combined image from the plurality of images associated with at least the second exposure; and generating a high dynamic range (HDR) image from the image associated with the first exposure and the combined image.
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公开(公告)号：US11711613B2
公开(公告)日：2023-07-25
申请号：US17241742
申请日：2021-04-27
Applicant: QUALCOMM Incorporated
Inventor： Shang-Chih Chuang , Ron Gaizman , Pradeep Veeramalla , Shizhong Liu , Weiliang Liu , Xiaoyun Jiang , Narayana Karthik Ravirala , Jiafu Luo , Srinath Anekere Narayan , Wei Zou
IPC: H04N23/68
CPC classification number: H04N23/689 , H04N23/6812
Abstract: Image frames for computational photography may be corrected, such as through rolling shutter correction (RSC), prior to fusion of the image frames to reduce wobble and jitter artifacts present in a video sequence of HDR-enhanced image frames. First and second motion data regarding motion of the image capture device may be determined for times corresponding to the capturing of the first and second image frames, respectively. The rolling shutter correction (RSC) may be applied to the first and second image frames based on both the first and second motion data. The corrected first and second image frames may then be aligned and fused to obtain a single output image frame with higher dynamic range than either of the first or second image frames.
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Patent Agency Ranking
公开(公告)号：US09955056B2
公开(公告)日：2018-04-24
申请号：US14659547
申请日：2015-03-16
Applicant: QUALCOMM Incorporated
Inventor： Adarsh Hosaagrahara Nagaraja , Weiliang Liu , Shizhong Liu
CPC classification number: H04N5/2258 , G06T7/33 , G06T7/85 , G06T2207/10012 , H04N5/217 , H04N5/2253 , H04N5/23212 , H04N17/002 , H04N2101/00
Abstract: A method for generating image calibration data at an electronic device having multiple cameras includes capturing a first image of a first scene at a first time using a first camera at the electronic device. The method also includes capturing a second image of a second scene at the first time using a second camera at the electronic device. A portion of the first scene overlaps a portion of the second scene. The method further includes generating the image calibration data based on the first image and based on the second image.
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公开(公告)号：US11057572B1
公开(公告)日：2021-07-06
申请号：US16830933
申请日：2020-03-26
Applicant: QUALCOMM Incorporated
Inventor： Hailong Wang , Lee-Kang Liu , Shizhong Liu , Weiliang Liu
Abstract: Methods, systems, and apparatuses are provided that adapt image capture operations to provide refined image capture capabilities. For example, an image capture device captures image data from a sensor operating at a first binning level. The image capture device receives a desired level of zoom, and determines whether the sensor is to be transitioned from the first binning level to a second binning level based on a binning transition threshold. If the sensor is to be transitioned, the image capture device adjusts one or more image capture operations, such as auto focus, automatic exposure, automatic gain, or automatic white balance, based on the desired level of zoom. After an amount of time, the image capture device transitions the sensor from the first binning level to the second binning level. The image capture device then captures image data from the sensor operating at the second binning level.
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公开(公告)号：US20150248748A1
公开(公告)日：2015-09-03
申请号：US14194436
申请日：2014-02-28
Applicant: QUALCOMM Incorporated
Inventor： Adarsh Hosaagrahara Nagaraja , Weiliang Liu
CPC classification number: G06T5/002 , G06T2207/20032
Abstract: A method includes selecting, at an image processor, a filtering network from a plurality of available filtering networks. The method also includes inserting a set of pixel values into an array and inserting at least one padding pixel value into the array. The method further includes applying the selected filtering network to the array to determine a median pixel value of the set of pixel values.
Abstract translation: 一种方法包括在图像处理器处从多个可用的过滤网络中选择过滤网络。 该方法还包括将一组像素值插入到阵列中并将至少一个填充像素值插入到阵列中。 该方法还包括将所选择的滤波网络应用于阵列以确定该组像素值的中值像素值。
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公开(公告)号：US20150030247A1
公开(公告)日：2015-01-29
申请号：US14191190
申请日：2014-02-26
Applicant: QUALCOMM Incorporated
Inventor： Xianbiao Shu , Xiaoyun Jiang , Weihua Xiong , Weiliang Liu
IPC: G06T5/00
CPC classification number: G06T5/005 , G06T2207/10024 , H04N1/58
Abstract: Certain aspects relate to systems and techniques for correction of color artifacts including both color aberration and color spot artifacts using a unified framework. For example, both color aberration and color spot artifacts can be corrected using a post-processing method implementing directional median filtering on chroma channels. A pixel-by-pixel correction ratio map can be built by analyzing the luma and chroma components of the image to indicate a type of color artifact associated with each pixel in the image, and a directional median filter can be selected for each pixel based on the corresponding correction ratio map value.
Abstract translation: 某些方面涉及使用统一的框架来校正颜色伪像（包括色差和色斑伪像）的系统和技术。 例如，可以使用对色度通道实施方向中值滤波的后处理方法来校正色差和色斑伪影。 可以通过分析图像的亮度和色度分量来构建像素逐像素校正比图，以指示与图像中的每个像素相关联的颜色伪像的类型，并且可以基于每个像素选择方向中值滤波器 相应的校正比图值。
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公开(公告)号：US11908100B2
公开(公告)日：2024-02-20
申请号：US17201660
申请日：2021-03-15
Applicant: QUALCOMM Incorporated
Inventor： Shizhong Liu , Jincheng Huang , Weiliang Liu , Jianfeng Ren , Sahul Madanayakanahalli Phaniraj Venkatesh
CPC classification number: G06T3/0093 , G06T3/0012 , G06T5/50 , G06T7/521 , G06T7/571 , H04N5/268 , H04N23/90 , G06T2207/10016 , G06T2207/10028
Abstract: Artefacts in a sequence of image frames may be reduced or eliminated through modification of an input image frame to match another image frame in the sequence, such as by geometrically warping to generate a corrected image frame with a field of view matched to another frame in sequence of frames with the image frame. The warping may be performed based on a model generated from data regarding the multi-sensor device. The disparity between image frames may be modeled based on image captures from the first and second image sensor for scenes at varying depths. The model may be used to predict disparity values for captured images, and those predicted disparity values used to reduce artefacts resulting from image sensor switching. The predicted disparity values may be used in image conditions resulting in erroneous actual disparity values.
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