发明名称 |
NOISE-REDUCTION PROCESSING DEVICE |
摘要 |
A noise-reduction processing device including: a part that calculates an edge strength indicating the edge amount at the pixel of interest based on the pixel of interest and surrounding pixels that surround the pixel of interest; a part that discriminates the edge direction at the pixel of interest; a first filter-processing part that subjects the pixel of interest to smoothing processing along a direction that is based on a direction-discrimination result and outputs a first filter-processing result; a second filter-processing part that subjects the pixel of interest to smoothing processing producing a lower low-pass effect than that of the first filter-processing part and outputs a second filter-processing result; and a part that synthesizes the first and second filter-processing results, with the ratio of the first filter-processing result increased as the edge strength becomes higher and the ratio of the second filter-processing result increased as the edge strength becomes lower. |
申请公布号 |
US2016063681(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
US201514938448 |
申请日期 |
2015.11.11 |
申请人 |
OLYMPUS CORPORATION |
发明人 |
ESAKI Hisumi |
分类号 |
G06T5/00;G06K9/46;G06K9/62;G06T7/00 |
主分类号 |
G06T5/00 |
代理机构 |
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代理人 |
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主权项 |
1. A noise-reduction processing device comprising:
an edge-strength calculation part that calculates, for each pixel of an input image, an edge strength indicating an edge amount at a pixel of interest on the basis of the pixel of interest and surrounding pixels that surround the pixel of interest; a first direction-discrimination part that discriminates an edge direction at the pixel of interest and that outputs a first direction-discrimination result; a first filter-processing part that subjects the pixel of interest to smoothing processing along a direction that is based on the first direction-discrimination result and that outputs a first filter-processing result; a second filter-processing part that subjects the pixel of interest to smoothing processing producing a lower low-pass effect than that of the first filter-processing part and that outputs a second filter-processing result; and a synthesizing part that synthesizes, according to the edge strength calculated by the edge-strength calculation part, the first filter-processing result and the second filter-processing result, with the ratio of the first filter-processing result increased as the edge strength becomes higher and the ratio of the second filter-processing result increased as the edge strength becomes lower. |
地址 |
Tokyo JP |