公开(公告)号：WO2022196941A1

公开(公告)日：2022-09-22

申请号：PCT/KR2022/001921

申请日：2022-02-08

Applicant: 한국전기연구원

Inventor： 강동구 ,  배영민 ,  신기영 ,  이원주 ,  장민혜

IPC: H04N9/67 ,  H04N9/64 ,  G06N20/00 ,  G06T5/00

Abstract: 영상 강화 시스템, 방법, 및 상기 방법을 실행시키기 위한 컴퓨터 판독 가능한 프로그램을 기록한 기록 매체가 개시된다. 영상 강화 시스템은, 미리 설정된 장파장의 영상 신호에서 산란성분을 완화 처리하는 산란성분 완화 처리부, 및 미리 설정된 예측 모델을 이용하여 산란성분이 완화 처리된 영상 신호를 변환하여 미리 설정된 단파장의 영상 신호인 가상영상 신호를 생성하는 가상영상 변환부를 포함한다. 이와 같은 구성에 의하면, 적외선 신호로부터 광의 산란성분을 완화하고 이를 변환하여 가상의 RGB 영상을 생성함으로써, 짙은 연기속에서도 촬영 대상에 대한 직관적인 영상을 제공할 수 있게 된다.

公开(公告)号：WO2021029719A1

公开(公告)日：2021-02-18

申请号：PCT/KR2020/010810

申请日：2020-08-13

Applicant: 삼성전자주식회사 ,  중앙대학교 산학협력단

Inventor： 송원석 ,  백준기 ,  문영수 ,  이상수 ,  정유선 ,  박관우 ,  유수환 ,  임영훈

IPC: H04N9/67 ,  H04N1/60 ,  G06N3/08

Abstract: 컴퓨팅 장치를 이용하여 영상을 변환하는 방법이 개시된다. 상기 방법은, 컨텐트에 관한 sRGB(standard Red Green Blue)의 색역(gamut)을 갖는 제1 sRGB 영상을 획득하는 단계; 뉴럴 네트워크를 이용하여 상기 제1 sRGB 영상의 색역을 DCI-P3(Digital Cinema Initiative-P3)의 색역으로 변환한 제1 변환 영상을 획득하는 단계; 상기 제1 sRGB 영상에 제1 색 변환 행렬을 적용함으로써 생성된 제2 변환 영상 및 상기 제1 변환 영상에 기초하여, 상기 제1 sRGB 영상의 색역을 DCI-P3 색역으로 변환한 최종 변환 영상을 생성하는 단계를 포함한다.

公开(公告)号：WO2021014764A1

公开(公告)日：2021-01-28

申请号：PCT/JP2020/021657

申请日：2020-06-01

Applicant: SONY CORPORATION

Inventor： TAKASHIMA, Masatoshi

IPC: H04N9/04 ,  G01J3/51 ,  H04N9/67 ,  H04N5/33

Abstract: Provided is an image pickup apparatus including a multi-band pass filter that selectively transmits band light in a specific band, a color filter that transmits the band light in the specific band per pixel of an image pickup device, the image pickup device that receives light transmitted by the multi-band pass filter and the color filter, and a signal processing section to which a pixel value of the image pickup device is input and which executes a signal process on the pixel value.　The multi-band pass filter is configured to selectively transmit band light corresponding to a plurality of color filter elements, and the signal processing section generates a pixel value corresponding to a band, of a pixel to be processed using a raw image base pixel value signal per pixel and a spectral characteristic parameter of the image pickup apparatus.

公开(公告)号：WO2019244691A1

公开(公告)日：2019-12-26

申请号：PCT/JP2019/022907

申请日：2019-06-10

Applicant: 株式会社JVCケンウッド

Inventor： 小林　敏秀 ,  今出　悦郎 ,  立石　昌和

IPC: H04N9/67 ,  G06T1/00 ,  H04N1/60 ,  H04N9/64

Abstract: リニアマトリクス回路（６）は、撮像装置が被写体を撮像することによって生成される第１のＲ信号、第１のＧ信号、第１のＢ信号に、第１～第３の補正係数、第４～第６の補正係数、第７～第９の補正係数よりなる３行×３列の補正係数をマトリクス演算して、第２のＲ信号、第２のＧ信号、第２のＢ信号を生成する。Ｒ係数補正部（１３）は、第１のＢ信号から第１のＧ信号を減算した第１の差分値が第１の閾値を超えたら、第１の差分値が大きくなるほど、第１のＲ信号に乗算される第１の補正係数を１に近付け、第１のＧ信号及び第１のＢ信号にそれぞれ乗算される第２及び第３の補正係数を０に近付けるように補正する。

公开(公告)号：WO2017129793A1

公开(公告)日：2017-08-03

申请号：PCT/EP2017/051852

申请日：2017-01-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： VAN DER VLEUTEN, Renatus, Josephus

IPC: H04N19/117 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86 ,  H04N19/59 ,  H04N5/20 ,  H04N9/67

CPC classification number: H04N19/117 ,  G09G2340/0428 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68 ,  H04N19/59 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

Abstract: A video encoder and decoder system includes a video decoder (220) converting in input HDR images in a luma and chrominance representation to SDR images in a luma and subsampled chrominance representation by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain. An video encoder may perform the opposite operation and convert from SDR to HDR by directly applying dynamic range conversion gains in the luma and subsampled chrominance domain.

Abstract translation: 视频编码器和解码器系统包括视频解码器（220），其通过直接将动态范围转换增益应用于亮度和色度表示中，将亮度和色度表示中的输入HDR图像转换为亮度和二次取样色度表示中的SDR图像 亮度和二次采样色度域。 视频编码器可以执行相反的操作并通过在亮度和二次采样色度域中直接应用动态范围转换增益从SDR转换为HDR。

公开(公告)号：WO2017083784A1

公开(公告)日：2017-05-18

申请号：PCT/US2016/061712

申请日：2016-11-11

Applicant: APPLE INC.

Inventor： TOURAPIS, Alexandros ,  SINGER, David, W. ,  WU, Hsi-Jung ,  SU, Yeping

IPC: H04N1/64 ,  H04N9/67 ,  H04N9/64

CPC classification number: H04N19/154 ,  H04N1/646 ,  H04N9/646 ,  H04N9/67 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13 ,  H04N19/15 ,  H04N19/17 ,  H04N19/186 ,  H04N19/51 ,  H04N19/61

Abstract: Techniques for selecting a luminance value for color space conversion are disclosed. Techniques include determining values for Cb and Cr from values for R', G', and B'; producing a reconstructed Cb* value and a reconstructed Cr* value by processing the Cb and Cr values; and determining a plurality of Y' value options from the values for Cb* and Cr*. A Y' output value may be selected based on the plurality of Y' value options.

Abstract translation: 公开了用于选择颜色空间转换的亮度值的技术。 技术包括根据R'，G'和B'的值确定Cb和Cr的值; 通过处理Cb和Cr值产生重建的Cb *值和重建的Cr *值; 并从Cb *和Cr *的值中确定多个Y'值选项。 可以基于多个Y'值选项来选择Y'输出值。

公开(公告)号：WO2016058835A1

公开(公告)日：2016-04-21

申请号：PCT/EP2015/072725

申请日：2015-10-01

Applicant: THOMSON LICENSING

Inventor： ANDRIVON, Pierre ,  LASSERRE, Sébastien ,  BORDES, Philippe

IPC: H04N19/46 ,  G09G5/02 ,  H04N1/60 ,  H04N9/67 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/85

CPC classification number: H04N19/46 ,  G09G5/02 ,  G09G2340/06 ,  H04N1/6058 ,  H04N9/67 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/44 ,  H04N19/85

Abstract: A method of color mapping a video signal represented in a first color volume from color mapping data to be applied on a video signal represented in a second color volume is disclosed. The method comprises: - color mapping (14) said video signal represented in a first color volume from said first color volume into said second color volume in the case where said first and second color volumes are different; and - color mapping (16) said color mapped video signal based on said color mapping data.

Abstract translation: 公开了一种将在第一颜色体积中表示的视频信号颜色映射到要应用于在第二颜色体积中表示的视频信号上的颜色映射数据的方法。 该方法包括： - 在所述第一和第二色彩体积不同的情况下，将从所述第一颜色体积的第一颜色体积表示的所述视频信号颜色映射（14）到所述第二颜色体积; 和基于所述颜色映射数据的颜色映射（16）所述颜色映射视频信号。

公开(公告)号：WO2015103124A1

公开(公告)日：2015-07-09

申请号：PCT/US2014/072528

申请日：2014-12-29

Applicant: VID SCALE, INC.

Inventor： YE, Yan ,  DONG, Jie ,  HE, Yuwen

IPC: H04N9/67 ,  H04N1/60 ,  H04N19/30

CPC classification number: H04N19/186 ,  H04N1/6058 ,  H04N9/67 ,  H04N19/187 ,  H04N19/30 ,  H04N19/43 ,  H04N19/44 ,  H04N19/50 ,  H04N19/96

Abstract: Systems, methods, and instrumentalities are disclosed for color space conversion. A video signal associated with a first color space may be received. The first color space may comprise a point. A partition of the first color space that includes the point may be determined. The partition may be associated with a first dimensionality. The point may be converted from the first color space to a second color space using a color space conversion model that corresponds with the partition. The color space conversion model may be associated with a second dimensionality. The second dimensionality may be less than the first dimensionality.

Abstract translation: 公开了用于色彩空间转换的系统，方法和工具。 可以接收与第一颜色空间相关联的视频信号。 第一颜色空间可以包括点。 可以确定包括该点的第一颜色空间的分区。 分区可以与第一维度相关联。 可以使用与分区对应的颜色空间转换模型将点从第一颜色空间转换为第二颜色空间。 颜色空间转换模型可以与第二维度相关联。 第二维度可以小于第一维数。

公开(公告)号：WO2014130343A2

公开(公告)日：2014-08-28

申请号：PCT/US2014/016304

申请日：2014-02-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： ATKINS, Robin ,  KUNKEL, Timo ,  BEIER, Thaddeus ,  CHEN, Tao

IPC: H04N9/67

CPC classification number: G09G3/2003 ,  G06T5/007 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20208 ,  G09G2340/06 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

Abstract: A display management processor receives an input image with enhanced dynamic range to be displayed on a target display which has a different dynamic range than a reference display. The input image is first transformed into a perceptually-corrected IPT color space. A non-linear mapping function generates a first tone-mapped signal by mapping the intensity of the input signal from the reference dynamic range into the target dynamic range. The intensity (I) component of the first tone-mapped signal is sharpened to preserve details, and the saturation of the color (P and T) components is adjusted to generate a second tone-mapped output image. A color gamut mapping function is applied to the second tone-mapped output image to generate an image suitable for display onto the target display. The display management pipeline may also be adapted to adjust the intensity and color components of the displayed image according to specially defined display modes.

Abstract translation: 显示管理处理器接收具有增强的动态范围的输入图像，以显示在具有与参考显示不同的动态范围的目标显示器上。 输入图像首先被转换成感知校正的IPT颜色空间。 非线性映射函数通过将来自参考动态范围的输入信号的强度映射到目标动态范围来生成第一音调映射信号。 第一音调映射信号的强度（I）分量被锐化以保留细节，并且调整颜色（P和T）分量的饱和度以产生第二色调映射输出图像。 将色域映射函数应用于第二色调映射输出图像，以产生适于在目标显示器上显示的图像。 显示管理管线还可以适于根据特定的显示模式来调整所显示的图像的强度和颜色分量。

公开(公告)号：WO2014062248A1

公开(公告)日：2014-04-24

申请号：PCT/US2013/047244

申请日：2013-06-24

Applicant: INTEL CORPORATION ,  PENG, Ya-Ti ,  CHIU, Yi-Jen

Inventor： PENG, Ya-Ti ,  CHIU, Yi-Jen

IPC: H04N9/67 ,  H04N1/46

CPC classification number: G09G5/02 ,  G09G2320/0666 ,  G09G2340/06 ,  G09G2360/16 ,  H04N1/6066 ,  H04N9/67 ,  H04N9/68

Abstract: Systems, apparatus, articles, and methods are described including operations for color enhancement via gamut expansion, comprising: detecting an extent of colorfulness based at least in part on a histogram associated with an input color space; determining a virtual color space based at least in part on the detected extent of colorfulness associated with the input color space; and transforming input data from the input color space to the virtual color space via absolute colorimetric mapping.

Abstract translation: 描述了包括通过色域扩展进行颜色增强的操作的系统，装置，物品和方法，包括：至少部分地基于与输入颜色空间相关联的直方图来检测多彩度的程度; 至少部分地基于所检测到的与输入颜色空间相关联的多彩度来确定虚拟颜色空间; 并通过绝对色度映射将输入颜色空间的输入数据转换为虚拟色彩空间。