| 发明名称 | Image evaluation apparatus and method | ||
| 摘要 | An evaluation apparatus includes: a memory; and a processor coupled to the memory and configured to calculate a first feature by calculating a first-order difference for a first image, calculate a second feature by calculating a second-order difference for the first image, calculate a third feature by calculating a first-order difference for a second image, calculate a fourth feature by calculating a second-order difference for the second image, and evaluate deterioration of the second image with respect to the first image according to a first simultaneous distribution that represents a first relationship between the first feature and the second feature and to a second simultaneous distribution that represents a second relationship between the third feature and the fourth feature. | ||
| 申请公布号 | US9407934(B2) | 申请公布日期 | 2016.08.02 |
| 申请号 | US201414263128 | 申请日期 | 2014.04.28 |
| 申请人 | FUJITSU LIMITED | 发明人 | Nakagata Shohei;Tanaka Ryuta |
| 分类号 | H04N19/40;H04N19/86 | 主分类号 | H04N19/40 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. An evaluation apparatus comprising: a memory; and a processor coupled to the memory and configured to calculate a first feature by calculating a first-order difference for a first image,calculate a second feature by calculating a second-order difference for the first image,calculate a third feature by calculating a first-order difference for a second image,calculate a fourth feature by calculating a second-order difference for the second image, andevaluate deterioration of the second image with respect to the first image according to a first simultaneous distribution that represents a first relationship between the first feature and the second feature and to a second simultaneous distribution that represents a second relationship between the third feature and the fourth feature;calculate a first value based on the first relationship between the first feature and the second feature, the first value indicating a characteristic feature of the first image,calculate a second value based on the second relationship between the third feature and the fourth feature, the second value indicating a characteristic feature of the second image, andevaluate the deterioration of the second image according to the first value and the second value. | ||
| 地址 | Kawasaki JP | ||