| 发明名称 | Block noise detection and filtering | ||
| 摘要 | Systems and methods for block noise detection and filtering are disclosed. One embodiment includes, computing difference magnitudes in pixel values for adjacent pixels in the image. The difference magnitudes can include horizontal difference magnitudes for horizontally adjacent pixels and vertical difference magnitudes for vertically adjacent pixels. One embodiment further includes using normalized sums of the difference magnitudes to determine a set of noise characteristics of the block noise and a set of image characteristics of the image and configuring inputs to the block noise filter using the set of noise and image characteristics. | ||
| 申请公布号 | US8891897(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201313899222 | 申请日期 | 2013.05.21 |
| 申请人 | Silicon Image, Inc. | 发明人 | Adams Dale Richard;Thompson Laurence A. |
| 分类号 | G06K9/40;H04N19/86;G06T5/10;G06T5/00;G11B20/00 | 主分类号 | G06K9/40 |
| 代理机构 | Fenwick & West LLP | 代理人 | Fenwick & West LLP |
| 主权项 | 1. A method for configuring a block noise filter for filtering block noise in an image, the method, comprising: computing difference magnitudes in pixel values for adjacent pixels in the image, wherein the difference magnitudes comprise horizontal difference magnitudes for horizontally adjacent pixels and vertical difference magnitudes for vertically adjacent pixels; using normalized sums of the difference magnitudes to determine a set of noise characteristics of the block noise; using difference magnitude data to determine a set of image characteristics of the image; and configuring inputs to the block noise filter using the set of noise and image characteristics. | ||
| 地址 | Sunnyvale CA US | ||