公开(公告)号：US09047665B2

公开(公告)日：2015-06-02

申请号：US14198758

申请日：2014-03-06

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroaki Omayu ,  Taro Imagawa ,  Toshiyuki Nakashima ,  Takeshi Hamasaki ,  Hiroyuki Miyahara

IPC: G06K9/00 ,  G06T5/00

CPC classification number: G06T5/002 ,  G06T2207/10024 ,  H04N1/58 ,  H04N1/6005 ,  H04N5/217 ,  H04N9/045

Abstract: An image processing apparatus comprises: a separation unit configured to separate image data into a luminance signal and a color difference signal; a decision unit configured to decide a reference pixel, which is referenced for a pixel of interest included in the image data; a luminance noise reduction unit configured to reduce luminance noise in the luminance signal of the image data; a weight calculation unit configured to calculate a weight of the reference pixel based on similarity of luminance included in the luminance signal having been subjected to noise reduction by the luminance noise reduction unit between a first area containing the pixel of interest and a second area containing the reference pixel; and a color noise reduction unit configured to reduce color noise in the color difference signal for the pixel of interest by using the weight of the reference pixel.

Abstract translation: 一种图像处理装置，包括：分离单元，被配置为将图像数据分离成亮度信号和色差信号; 判定单元，被配置为确定参考像素，所述参考像素被引用于所述图像数据中包含的关注像素; 亮度噪声降低单元，被配置为降低图像数据的亮度信号中的亮度噪声; 权重计算单元，被配置为基于在包含感兴趣像素的第一区域和包含感兴趣像素的第二区域之间的亮度噪声降低单元在已经经过降噪的亮度信号中包括的亮度的相似度来计算参考像素的权重 参考像素 以及颜色噪声降低单元，被配置为通过使用参考像素的权重来减少所述感兴趣像素的色差信号中的颜色噪声。

公开(公告)号：US12141948B2

公开(公告)日：2024-11-12

申请号：US18030445

申请日：2021-11-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshio Ohtsuka ,  Masato Izawa ,  Tomoki Ogawa ,  Toshiyuki Nakashima ,  Masayuki Aihara ,  Kazuhiro Funamoto ,  Tadashi Miki

IPC: G06T5/77 ,  A61B1/06 ,  A61B1/24 ,  G06T5/50 ,  G06T7/00 ,  G06T7/136 ,  G06T7/90 ,  H04N17/00 ,  H04N23/72 ,  H04N23/74 ,  H04N23/76

Abstract: A dentition image capturing system includes: illumination devices to radiate light; an imaging device to capture first and second dentition images in a predetermined exposure period; a high luminance region extraction unit to extract a high luminance region for the first and second dentition images; a high luminance region comparison unit to calculate a degree of similarity between the high luminance region of the first dentition image and the second dentition image; a halation region specification unit to specify the high luminance region of the first dentition image as a halation region in a case where the similarity degree is smaller than a predetermined threshold; an image synthesis processing unit executing image synthesis processing of extracting a trimming region in the second dentition image corresponding to the halation region and replacing the halation region with the trimming region; and a dentition image output unit to output the first dentition image.