发明名称 APPARATUS AND METHOD FOR IMAGE PROCESSING AND STORAGE MEDIUM
摘要 An image processing apparatus and method including executing high-pass filtering in a column direction on the pixel values of original image data read from a flat panel detector to obtain first image data, and subtracting a value obtained by converting each of the pixel values of the first image data in accordance with an absolute value of a statistic calculated from pixel values in the same pixel row of the first image data from the value of a corresponding pixel of the original image data to obtain processed image data.
申请公布号 US2016071247(A1) 申请公布日期 2016.03.10
申请号 US201514940000 申请日期 2015.11.12
申请人 CANON KABUSHIKI KAISHA 发明人 Tsuchiya Keiji
分类号 G06T5/00;G06K9/40 主分类号 G06T5/00
代理机构 代理人
主权项 1. An image processing apparatus for reducing noise in an X-ray image obtained from a digital X-ray detector, the image processing apparatus comprising: a processing unit configured to apply, to the X-ray image, an averaging process of values of pixels of the X-ray image lined in a specific direction to obtain a data set including a plurality of items of data lined in the specific direction, and to extract linear noise in the specific direction from the data set; and a reduction unit configured to reduce noise of the X-ray image based on the extracted linear noise, wherein the processing unit is configured to perform a process for extracting the linear noise for each of segmented imaging regions of the data set, the segmented imaging regions obtained by segmenting the data set in the specific direction.
地址 Tokyo JP