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公开(公告)号：US11190669B2
公开(公告)日：2021-11-30
申请号：US16242375
申请日：2019-01-08
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Zisheng Cao , Wei Chen , Xiaozheng Tang , Mingyu Wang
Abstract: A method for image processing includes color correcting an image via a first color mapping process to obtain a color corrected image, and compressing the color corrected image via a second color mapping process to obtain a compressed image.
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公开(公告)号：US10917652B2
公开(公告)日：2021-02-09
申请号：US16381927
申请日：2019-04-11
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wenjun Zhao , Wei Chen , Xiaozhen Zheng
IPC: H04N19/196 , H04N19/176 , H04N19/174 , H04N19/15 , H04N19/115 , H04N19/124
Abstract: A data rate control method includes determining an adjustment value of a first encoding parameter for encoding a first strip based on a quota of the first strip included in a frame that has not been encoded and based on a quota of at least one already encoded strip included in the frame. At least one of the quota of the first strip and the quota of the at least one already encoded strip relates to a number of shares of bits used for encoding a strip. The data rate control method also includes determining the first encoding parameter based on the adjustment value.
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公开(公告)号：US10560607B2
公开(公告)日：2020-02-11
申请号：US16358946
申请日：2019-03-20
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wei Chen , Zisheng Cao
Abstract: A computer-implemented method for color correction includes determining a peak signal-to-noise ratio (PSNR) for a noise evaluation image, determining a corrected PSNR for a corrected noise evaluation image, determining a downsampled PSNR for a downsampled noise evaluation image obtained by downsampling the noise evaluation image, determining a downsampled corrected PSNR for a downsampled corrected noise evaluation image obtained by downsampling the corrected noise evaluation image, and determining a noise amplification metric based on the PSNR, the corrected PSNR, the downsampled PSNR, and the downsampled corrected PSNR.
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公开(公告)号：US10855917B2
公开(公告)日：2020-12-01
申请号：US16383043
申请日：2019-04-12
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Mingli Cui , Lei Zhu , Hao Cui , Wei Chen , Dong Qin , Chunlei Sun
Abstract: A data processing method includes obtaining merged attribute information of an image sensor, obtaining pixel data of the image sensor, and processing the pixel data according to the merged attribute information. The merged attribute information includes elements each corresponding to at least one pixel of the image sensor and containing N types of attribute information of the at least one pixel. N is an integer larger than or equal to 2.
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公开(公告)号：US10244146B2
公开(公告)日：2019-03-26
申请号：US15977661
申请日：2018-05-11
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wei Chen , Zisheng Cao
Abstract: A computer-implemented method for color correction includes obtaining a noise evaluation image by adding noise to a noise-free image, color correcting the noise evaluation image using a plurality of color correction parameters, color correcting the noise-free image using the plurality of color correction parameters, determining a noise amplification metric at least by comparing the corrected noise evaluation image with the corrected noise-free image, and adjusting the plurality of color correction parameters based on the noise amplification metric.
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Patent Agency Ranking
公开(公告)号：USD830392S1
公开(公告)日：2018-10-09
申请号：US29591829
申请日：2017-01-24
Applicant: SZ DJI Technology Co., Ltd.
Designer： Haoyu Li , Jieming Zhang , Wei Chen , Baojie Miao
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公开(公告)号：US09998632B2
公开(公告)日：2018-06-12
申请号：US15646301
申请日：2017-07-11
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wei Chen , Zisheng Cao
CPC classification number: H04N1/6027 , G06T5/002 , G06T7/90 , G06T2207/10024 , G09G5/02 , G09G5/06 , G09G2320/0693 , G09G2340/0407 , G09G2340/06 , G09G2370/12 , G09G2380/08 , H04N1/60 , H04N1/6033 , H04N9/68 , H04N9/735
Abstract: A system and method for color correction is disclosed to reduce noise amplification during color correction. The method can comprise color correcting a noise evaluation image using a plurality of color correction parameters, determining a noise amplification metric by comparing the corrected noise evaluation image with the pre-correction noise evaluation image, and adjusting the plurality of color correction parameters based on the noise amplification metric.
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公开(公告)号：US09742960B2
公开(公告)日：2017-08-22
申请号：US15176037
申请日：2016-06-07
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wei Chen , Zisheng Cao
CPC classification number: H04N1/6027 , G06T5/002 , G06T7/90 , G06T2207/10024 , G09G5/02 , G09G5/06 , G09G2320/0693 , G09G2340/0407 , G09G2340/06 , G09G2370/12 , G09G2380/08 , H04N1/60 , H04N1/6033 , H04N9/68 , H04N9/735
Abstract: A system and method for calibrating a digital imaging device for color correction is disclosed. The method comprises obtaining an input color value and a reference color value for each of a plurality of color references, as well as a noise evaluation image having a color noise for evaluating noise reduction, the input color values and reference color values being in a non-linear color space. A plurality of color correction parameters are determined as optimized based on evaluating a fitness function in the non-linear color space. The non-linear color space can be a CIE L*a*b* color space. The fitness function can include a color correction error and a noise amplification metric so as to reduce noise amplification during color correction.
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公开(公告)号：US10708617B2
公开(公告)日：2020-07-07
申请号：US15452680
申请日：2017-03-07
Applicant: SZ DJI Technology Co., Ltd.
Inventor： Yannan Wu , Xiaozheng Tang , Wei Chen , Zisheng Cao , Mingyu Wang
IPC: H04N19/57 , H04N19/61 , H04N19/56 , H04N19/527 , H04N19/513
Abstract: Methods and systems for evaluating a search area for encoding video are provided. The method comprises receiving video captured by an image capture device, the video comprising video frame components. Additionally, the method comprises receiving optical flow field data associated with the video frame component, wherein at least a portion of the optical flow field data is captured by sensors. The method also comprises determining a search area based on the optical flow field data.
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公开(公告)号：USD829227S1
公开(公告)日：2018-09-25
申请号：US29577192
申请日：2016-09-09
Applicant: SZ DJI Technology Co., Ltd.
Designer： Jieming Zhang , Baojie Miao , Wei Chen , Bingzhen Yang
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