Image processing apparatus, image processing method, and storage medium
US-2024430584-A1 · Dec 26, 2024 · US
Method and system for handling mixed illumination in video and photography
US8994848B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8994848-B2 |
| Application number | US-201313803405-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2013 |
| Priority date | Mar 14, 2013 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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A method including: obtaining, with an image processing apparatus, a white point that corresponds to an image captured by a camera with only the natural light as a light source; obtaining, with the image processing apparatus, a white point that corresponds to an image captured by the camera with only the artificial light as a light source; determining, with the image processing apparatus, a ratio of an intensity of natural light for a pixel to an intensity of an artificial light for the pixel within an image captured by a camera under mixed illumination of the natural light and the artificial light; and determining, with the image processing apparatus, a white point for the pixel in the image under mixed illumination based on the ratio of the intensity of natural light to the intensity of artificial light for the pixel in the image, the white point for only the natural light, and the white point for only the artificial light.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: obtaining, with an image processing apparatus, a white point that corresponds to an image captured by a camera with only the natural light as a light source; obtaining, with the image processing apparatus, a white point that corresponds to an image captured by the camera with only a high efficiency artificial light as a light source; determining, with a spatial sensor of the image processing apparatus, a ratio of an intensity o…
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Frequently asked questions
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- What does patent US8994848B2 cover?
- A method including: obtaining, with an image processing apparatus, a white point that corresponds to an image captured by a camera with only the natural light as a light source; obtaining, with the image processing apparatus, a white point that corresponds to an image captured by the camera with only the artificial light as a light source; determining, with the image processing apparatus, a rat…
- Who is the assignee on this patent?
- Cisco Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification H04N23/88. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 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).