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公开(公告)号:US20130321673A1
公开(公告)日:2013-12-05
申请号:US13485299
申请日:2012-05-31
IPC分类号: H04N5/217
CPC分类号: G06T1/20 , H04N17/002
摘要: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may compute noise statistics associated with image data by receiving a frame of the image data having a plurality of pixels. The image processing pipeline may then identify a plurality of portions of the frame of the image data such that each portion of the plurality of portions has a flat surface. The image processing pipeline may then calculate a plurality of gradients for each portion of the plurality of portions, determine one or more dominant gradient orientations for each portion of the plurality of portions, and generate a histogram that represents a plurality of dominant gradient orientations that corresponds to the plurality of portions. After generating the histogram, the image processing pipeline may store the histogram, which may represent the noise statistics, in a memory.
摘要翻译: 本公开通常涉及用于图像数据处理的系统和方法。 在某些实施例中,图像处理流水线可以通过接收具有多个像素的图像数据的帧来计算与图像数据相关联的噪声统计。 然后,图像处理流水线可以识别图像数据的帧的多个部分,使得多个部分的每个部分具有平坦表面。 然后,图像处理流水线可以为多个部分的每个部分计算多个梯度,为多个部分的每个部分确定一个或多个主要梯度取向,并且生成表示对应于多个部分的多个主要梯度取向的直方图 到多个部分。 在生成直方图之后,图像处理流水线可以将可以表示噪声统计的直方图存储在存储器中。