公开(公告)号：US20190149757A1

公开(公告)日：2019-05-16

申请号：US16224375

申请日：2018-12-18

Applicant: OLYMPUS CORPORATION

Inventor： Teruaki YAMASAKI

IPC: H04N5/367

CPC classification number: H04N5/367 ,  H04N1/40 ,  H04N1/409 ,  H04N5/3675

Abstract: An image processing device includes a computer that is configured to: perform order-statistic filter processing on pixel values of individual pixels in a block including a pixel of interest and peripheral pixels in an acquired image; calculate a difference value between the pixel values of the pixel of interest before and after the order-statistic filter processing is performed; calculate a statistical variation of the pixel values of the peripheral pixels subjected to the order-statistic filter processing; and determine the pixel of interest as being a defective pixel in the case where a value obtained by dividing the difference value by the statistical variation is greater than or equal to a predetermined threshold.

公开(公告)号：US20210044769A1

公开(公告)日：2021-02-11

申请号：US17079708

申请日：2020-10-26

Applicant: OLYMPUS CORPORATION

Inventor： Hiroki MARUYAMA ,  Teruaki YAMASAKI

IPC: H04N5/367 ,  H04N5/355 ,  H04N5/353

Abstract: An image processing apparatus including a processor including hardware, the processor being configured to: detect a defective pixel from among the multiple pixels; calculate a level of a pixel value of the defective pixel; compare the calculated level of the pixel value of the defective pixel with a threshold to determine whether a defective pixel that is stored in a storage is to be corrected, the threshold being determined based on a brightness that is calculated from pixel values close to a defective pixel and on any one of an exposure time of image data corresponding to a defective pixel on which a determination is to be made, a value of gain, and variation in pixel value among pixels surrounding the defective pixel on which a determination is to be made; and interpolate the pixel value of the determined defective pixel that is to be corrected.

公开(公告)号：US20180130187A1

公开(公告)日：2018-05-10

申请号：US15867390

申请日：2018-01-10

Applicant: OLYMPUS CORPORATION

Inventor： Teruaki YAMASAKI

IPC: G06T5/00 ,  G06T7/11

CPC classification number: G06T5/002 ,  G06T5/20 ,  G06T7/11 ,  G06T2207/20012 ,  G06T2207/20028 ,  G06T2207/20192 ,  H04N1/40062 ,  H04N1/409 ,  H04N5/20 ,  H04N5/21

Abstract: An image processing apparatus includes: a dispersion calculation unit for calculating a dispersion of pixel values in each of a plurality of pixel groups which are each composed of a pixel of interest and peripheral pixels around the pixel of interest in an image and in which the pixel of interest and the peripheral pixels are arranged in directions different from one another; and a gradation determination unit for determining whether or not the pixel of interest belongs to a gradation region on the basis of a magnitude relationship among the dispersions calculated by the dispersion calculation unit.

公开(公告)号：US20160212364A1

公开(公告)日：2016-07-21

申请号：US15081409

申请日：2016-03-25

Applicant: Olympus Corporation

Inventor： Atsuro OKAZAWA ,  Teruaki YAMASAKI ,  Takeshi FUKUTOMI

IPC: H04N5/369 ,  H04N5/232

CPC classification number: H04N5/3696 ,  H04N5/23212 ,  H04N5/23229 ,  H04N9/07

Abstract: An imaging apparatus includes a high-frequency pattern detector calculating a difference or a ratio between a value obtained by integrating averages of pixel outputs of a first pixel group arranged in identical positions in a vertical direction with respect to a focus detection pixel or in identical positions in a vertical direction with respect to another focus detection pixel located around the focus detection pixel and a value obtained by integrating averages of pixel outputs of a second pixel group arranged in positions shifted from the first pixel group in the horizontal or vertical direction, and sets a high-frequency degree in accordance with a magnitude of the difference or the ratio. An application determination unit increases the mixing rate of the focus detection pixel when the high-frequency pattern degree is high.

Abstract translation: 一种成像设备包括：高频图案检测器，其计算差异或通过将排列在垂直方向上的相同位置的第一像素组的像素输出的平均值相对于焦点检测像素或相同位置的平均值之间的比率 相对于位于焦点检测像素周围的另一个焦点检测像素的垂直方向，以及通过对布置在从水平或垂直方向上的第一像素组移位的位置的第二像素组的像素输出的平均值进行积分而得到的值，并且设置 根据差值或比率的大小来计算高频度。 当高频图案度高时，应用确定单元增加焦点检测像素的混合率。

公开(公告)号：US20150092088A1

公开(公告)日：2015-04-02

申请号：US14496642

申请日：2014-09-25

Applicant: Olympus Corporation

Inventor： Atsuro OKAZAWA ,  Teruaki YAMASAKI ,  Takeshi FUKUTOMI

IPC: H04N5/243

CPC classification number: H04N5/243 ,  H04N5/23212 ,  H04N5/3696

Abstract: An image processing apparatus includes a gain correcting unit and a gain estimating unit. The gain correcting unit corrects a gain of a pixel output of a phase-difference detecting pixel. The gain estimating unit estimates the gain with which to correct the pixel output of the phase-difference detecting pixel. The gain estimating unit includes a provisional true-value calculating unit configured to calculate a pixel output of a provisional true-value calculating pixel, in accordance with a correlation of the pixel outputs between a base block including the phase-difference detecting pixel and a reference block set in a search area for which a block similar to the base block is searched.

Abstract translation: 图像处理装置包括增益校正单元和增益估计单元。 增益校正单元校正相位差检测像素的像素输出的增益。 增益估计单元估计用于校正相位差检测像素的像素输出的增益。 所述增益估计单元包括：临时真值计算单元，被配置为根据包括所述相位差检测像素的基本块和参考点之间的像素输出的相关性来计算临时真值计算像素的像素输出; 在搜索区域中设置块，该搜索区域搜索与基本块相似的块。

公开(公告)号：US20190238771A1

公开(公告)日：2019-08-01

申请号：US16247691

申请日：2019-01-15

Applicant: OLYMPUS CORPORATION

Inventor： Hiroki MARUYAMA ,  Manabu ICHIKAWA ,  Teruaki YAMASAKI

IPC: H04N5/367 ,  H04N5/378

Abstract: An image processing apparatus is disclosed which processes noise resulting from a defective pixel different from a low saturation pixel, included in image data generated by an image sensor including a plurality of pixels two-dimensionally arranged to receive light from outside and generate a signal according to an amount of received light and including a plurality of read-out circuits that read out the signal as a pixel value. The image processing apparatus includes an acquisition unit that obtains the image data generated by the image sensor and a saturation level of each of the plurality of pixels; and a noise processing unit that processes the noise on the basis of the saturation level obtained by the acquisition unit.

公开(公告)号：US20190166320A1

公开(公告)日：2019-05-30

申请号：US16249239

申请日：2019-01-16

Applicant: OLYMPUS CORPORATION

Inventor： Hiroki MARUYAMA ,  Manabu ICHIKAWA ,  Teruaki YAMASAKI

IPC: H04N5/367

CPC classification number: H04N5/367

Abstract: An image processing apparatus processes noise from a defective pixel in image data generated by an image sensor including plural pixels, and plural read-out circuits that read out the signal. The apparatus includes an acquisition unit that obtains the image data and position information of the defective pixel; a defective pixel correction unit that corrects the signal from the defective pixel included in the image data, based on the position information; a low saturation pixel correction unit that corrects a signal from a low saturation pixel included in the image data where the signal from the defective pixel has been corrected, the low saturation pixel having a saturation level lower than the other pixels, based on a preliminarily calculated saturation level of the plural pixels; and a saturation level calculation unit that calculates the saturation level of the defective pixel corrected by the defective pixel correction unit.

公开(公告)号：US20180338100A1

公开(公告)日：2018-11-22

申请号：US16034631

申请日：2018-07-13

Applicant: OLYMPUS CORPORATION

Inventor： Teruaki YAMASAKI ,  Manabu ICHIKAWA

IPC: H04N5/367 ,  H01L27/146 ,  H04N5/14

CPC classification number: H04N5/232 ,  H04N5/367 ,  H04N5/3745 ,  H04N9/07

Abstract: An image processing device includes: an acquisition unit configured to acquire image data generated by an imaging element including sharing blocks, each including multiple adjacent pixels configured to generate signals according to amounts of light received externally and one read circuit; an offset calculator configured to, based on the acquired image data and using pixel values of pixels in a sharing block of interest that is one of the multiple sharing blocks and pixel values of pixels outside the sharing block of interest, detect an offset component of a pixel value occurring in the sharing block of interest; and a corrector configured to calculate a correction amount to correct a pixel value of at least one pixel in the sharing block of interest based on the offset component and use the correction amount to correct a pixel value of at least one pixel in the sharing block of interest.

公开(公告)号：US20150097992A1

公开(公告)日：2015-04-09

申请号：US14507178

申请日：2014-10-06

Applicant: OLYMPUS CORPORATION

Inventor： Atsuro OKAZAWA ,  Teruaki YAMASAKI ,  Takeshi FUKUTOMI

IPC: H04N5/243 ,  H04N5/217

CPC classification number: H04N5/243 ,  H04N5/217 ,  H04N5/23212 ,  H04N5/3696 ,  H04N9/045

Abstract: An image processing apparatus is designed to process pixel outputs of an imaging element including imaging pixels and phase-difference detecting pixels. The apparatus includes a pixel mixing unit and an image processing unit. The pixel mixing unit mixes the pixel outputs. The image processing unit corrects the pixel outputs to prevent the phase-difference detecting pixels from degrading image quality, by using at least one of information selected from a group consisting of the number of mixed pixel outputs of phase-difference detecting pixels having the same opening direction and the number of mixed pixel outputs of imaging pixels having the same opening direction.

Abstract translation: 图像处理装置被设计为处理包括成像像素和相位差检测像素的成像元件的像素输出。 该装置包括像素混合单元和图像处理单元。 像素混合单元混合像素输出。 图像处理单元通过使用从具有相同开口的相位差检测像素的混合像素输出的数量的组中选择的信息中的至少一个来校正像素输出以防止相位差检测像素降低图像质量 方向和具有相同开口方向的成像像素的混合像素输出的数量。