Low power demosaic with intergrated chromatic aliasing repair
US-2015363916-A1 · Dec 17, 2015 · US
Bayer-consistent raw scaling
US9514514B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9514514-B2 |
| Application number | US-201514874925-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 5, 2015 |
| Priority date | Sep 25, 2014 |
| Publication date | Dec 6, 2016 |
| Grant date | Dec 6, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A system and method for scaling an image includes receiving raw image data comprising input pixel values which correspond to pixels of an image sensor; and filtering pixels according to a Bayer-consistent ruleset by a first scaling factor in a first direction and a second scaling factor in a second direction perpendicular to the first direction, wherein the first scaling factor is different from the second scaling factor. The system and method may also include outputting scaled image data as output pixel values, which correspond to subgroups of the input pixel values. The Bayer-consistent ruleset includes a set of filter weights and a series of scaling rules. The Bayer-consistent ruleset results in a scaled image having a high degree of Bayer-consistency.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of scaling an image comprising: receiving raw image data comprising a plurality of input pixel values, respective ones of the input pixel values corresponding to a respective pixel of an image sensor; and filtering the raw image data according to a Bayer-consistent ruleset by a first scaling factor in a first direction, and a second scaling factor in a second direction perpendicular to the first direction, wherein the first scaling factor is different from the second scaling factor, and the Bayer-consistent ruleset results in a Bayer-consistency coefficient C of greater than or equal to 0.65, where C is defined according to the following expression (1): C= 0.5γ+0.5β (1), where γ and β are defined according to the following expressions (2) and (3), respectively: γ = 1 4 ∑ c Σ c sub - tile ( filter coefficients for c colored pixels ) 2 Σ all sub - tiles ( filter coefficients for c colored pixels ) 2 , ( 2 ) β = max ( 1 - 1 4 ∑ c (
Assignees
Inventors
Classifications
- G06T3/4015Primary
Image demosaicing, e.g. colour filter arrays [CFA] or Bayer patterns · CPC title
Color image · CPC title
using non-spatial domain filtering · CPC title
Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9514514B2 cover?
- A system and method for scaling an image includes receiving raw image data comprising input pixel values which correspond to pixels of an image sensor; and filtering pixels according to a Bayer-consistent ruleset by a first scaling factor in a first direction and a second scaling factor in a second direction perpendicular to the first direction, wherein the first scaling factor is different fro…
- Who is the assignee on this patent?
- Sony Corp
- What technology area does this patent fall under?
- Primary CPC classification G06T3/4015. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 06 2016 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).