公开(公告)号：US08675102B2

公开(公告)日：2014-03-18

申请号：US13631796

申请日：2012-09-28

Applicant: Apple Inc.

Inventor： Farhan A. Baqai ,  Jay Zipnick ,  Haitao Guo

IPC: H04N5/217

CPC classification number: H04N9/646 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/20012 ,  G06T2207/20182

Abstract: A video enhancement processing system improves perceptual quality of video data with limited processing complexity. The system may perform spatial denoising using filter weights that may vary based on estimated noise of an input image. Specifically, estimated noise of the input image may alter a search neighborhood over which the denoising filter operates, may alter a profile of weights to be applied based on pixel distances and may alter a profile of weights to be applied based on similarity of pixels for denoising processes. As such, the system finds application in consumer devices that perform such enhancement techniques in real time using general purpose processors such as CPUs or GPUs.

Abstract translation: 视频增强处理系统以有限的处理复杂度提高视频数据的感知质量。 该系统可以使用可基于输入图像的估计噪声而变化的滤波器权重来执行空间去噪。 具体地，输入图像的估计噪声可以改变去噪滤波器操作的搜索邻域，可以基于像素距离改变要应用的权重的轮廓，并且可以基于用于去噪的像素的相似度来改变要应用的权重的轮廓 过程。 因此，该系统在使用诸如CPU或GPU的通用处理器实时地实现这种增强技术的消费者设备中发现应用。