公开(公告)号：US09792667B2

公开(公告)日：2017-10-17

申请号：US15345002

申请日：2016-11-07

Applicant: GoPro, Inc.

Inventor： Yajie Sun ,  Timothy Macmillan ,  Elizabeth Torres Edwards ,  Sumit Chawla

IPC: G06T3/40 ,  H04N17/00 ,  H04N5/232 ,  G06K9/46 ,  G06K9/62 ,  G06K9/52 ,  H04N5/349 ,  H04N5/374 ,  H04N13/02 ,  G06T7/80 ,  G06T5/00 ,  G06T7/33 ,  G06T7/13 ,  H04N13/00

CPC classification number: G06T3/4038 ,  G06K9/4604 ,  G06K9/52 ,  G06K9/6201 ,  G06T5/002 ,  G06T7/13 ,  G06T7/337 ,  G06T7/80 ,  G06T7/85 ,  H04N5/23229 ,  H04N5/2329 ,  H04N5/349 ,  H04N5/374 ,  H04N13/239 ,  H04N13/246 ,  H04N13/271 ,  H04N13/296 ,  H04N17/002 ,  H04N2013/0081

Abstract: A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

公开(公告)号：US09648293B2

公开(公告)日：2017-05-09

申请号：US14521460

申请日：2014-10-22

Applicant: GoPro, Inc.

Inventor： Sumit Chawla ,  Elizabeth Torres Edwards ,  Ying Chen

IPC: H04N5/232 ,  H04N9/64 ,  H04N1/60 ,  H04N9/68

CPC classification number: H04N9/643 ,  H04N1/6033 ,  H04N9/68

Abstract: The conversion of RAW data captured by a camera can have artifacts in smoothness of various hues for varying chroma. To optimize smoothness and color accuracy, transform coefficients defining conversion of a standard color model to a target color model are determined. The RAW data is converted to data in a standard color model and the data in the standard color model is converted to data in the target color model using the transform coefficients. The process is repeated for various lightness levels and combined into a look up table to efficiently convert RAW data to data in the target color model for various lightness levels.

公开(公告)号：US20170053392A1

公开(公告)日：2017-02-23

申请号：US15345002

申请日：2016-11-07

Applicant: GoPro, Inc.

Inventor： Yajie Sun ,  Timothy Macmillan ,  Elizabeth Torres Edwards ,  Sumit Chawla

IPC: G06T7/00 ,  G06T3/40 ,  G06T5/00

CPC classification number: G06T3/4038 ,  G06K9/4604 ,  G06K9/52 ,  G06K9/6201 ,  G06T5/002 ,  G06T7/13 ,  G06T7/337 ,  G06T7/80 ,  G06T7/85 ,  H04N5/23229 ,  H04N5/2329 ,  H04N5/349 ,  H04N5/374 ,  H04N13/239 ,  H04N13/246 ,  H04N13/271 ,  H04N13/296 ,  H04N17/002 ,  H04N2013/0081

Abstract: A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

Abstract translation: 具有重叠视野的一对相机基于由该对相机的图像传感器捕获的图像来对准。 在图像之间识别像素漂移。 基于所识别的像素偏移，校准被应用于该对照相机中的一个或两个。 为了确定像素偏移，相机应用包括边缘匹配的相关方法。 校准一对相机可能包括调整图像传感器上的读取窗口。 像素偏移也可用于确定时间滞后，可用于同步后续图像捕获。

公开(公告)号：US20150271398A1

公开(公告)日：2015-09-24

申请号：US14521460

申请日：2014-10-22

Applicant: GoPro, Inc.

Inventor： Sumit Chawla ,  Elizabeth Torres Edwards ,  Ying Chen

IPC: H04N5/232 ,  H04N9/69 ,  H04N9/64 ,  H04N9/04

CPC classification number: H04N9/643 ,  H04N1/6033 ,  H04N9/68

Abstract: The conversion of RAW data captured by a camera can have artifacts in smoothness of various hues for varying chroma. To optimize smoothness and color accuracy, transform coefficients defining conversion of a standard color model to a target color model are determined. The RAW data is converted to data in a standard color model and the data in the standard color model is converted to data in the target color model using the transform coefficients. The process is repeated for various lightness levels and combined into a look up table to efficiently convert RAW data to data in the target color model for various lightness levels.

Abstract translation: 由相机拍摄的RAW数据的转换可以具有用于变化色度的各种色调的平滑度的伪影。 为了优化平滑度和颜色精度，确定将标准颜色模型的转换定义为目标颜色模型的变换系数。 将RAW数据转换为标准颜色模型中的数据，并使用变换系数将标准颜色模型中的数据转换为目标颜色模型中的数据。 对于各种亮度级别重复该过程并组合成查找表，以有效地将RAW数据转换为目标颜色模型中的数据，以获得各种亮度级别。