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System and method for estimating signal-dependent noise of an image
US8977049B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8977049-B2 |
| Application number | US-68466310-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 8, 2010 |
| Priority date | Jan 8, 2010 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A method for estimating signal-dependent noise includes defining a plurality of pixel groups from among the image pixels. The method further includes computing, for one or more signal levels of the image, a difference value between two pixel groups, whereby a respective one or more difference values are computed collectively. The method determines an estimated noise response of the image as a function of the one or more computed difference values.
First claim
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What is claimed is: 1. A method for estimating noise in an image, the image including a plurality of image pixels, the method comprising: (i) defining a plurality of non-overlapping pixel groups from among the image pixels; (ii) for a first signal level, computing a first difference value between two pixel groups of the non-overlapping pixel groups, wherein the first signal level represents a depth; and (iii) determining an estimated noise response of the image as a function o…
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- What does patent US8977049B2 cover?
- A method for estimating signal-dependent noise includes defining a plurality of pixel groups from among the image pixels. The method further includes computing, for one or more signal levels of the image, a difference value between two pixel groups, whereby a respective one or more difference values are computed collectively. The method determines an estimated noise response of the image as a f…
- Who is the assignee on this patent?
- Aila Timo, Laine Samuli, Nvidia Corp
- What technology area does this patent fall under?
- Primary CPC classification G06T5/002. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).