Video encoding method and apparatus, real-time communication method and apparatus, device, and storage medium
US-2024098316-A1 · Mar 21, 2024 · US
Systems and methods for local tone mapping
US9105078B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9105078-B2 |
| Application number | US-201213485421-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2012 |
| Priority date | May 31, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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.
Systems and methods for local tone mapping are provided. In one example, an electronic device includes an electronic display, an imaging device, and an image signal processor. The electronic display may display images of a first bit depth, and the imaging device may include an image sensor that obtains image data of a higher bit depth than the first bit depth. The image signal processor may process the image data, and may include local tone mapping logic that may apply a spatially varying local tone curve to a pixel of the image data to preserve local contrast when displayed on the display. The local tone mapping logic may smooth the local tone curve applied to the intensity difference between the pixel and another nearby pixel exceeds a threshold.
First claim
Opening claim text (preview).
What is claimed is: 1. An image signal processing system comprising: local tone mapping logic to apply spatially varying tone curves to image data, wherein the local tone mapping logic comprises a spatially varying grid of lookup tables of tone curves indexed by luminance associated each pixel of the image data; and spatially varying color correction matrices to apply spatially varying color correction matrices to the image data, wherein each of the spatially varying color matri…
Assignees
Inventors
Classifications
Physics · mapped topic
- G06T5/001Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9105078B2 cover?
- Systems and methods for local tone mapping are provided. In one example, an electronic device includes an electronic display, an imaging device, and an image signal processor. The electronic display may display images of a first bit depth, and the imaging device may include an image sensor that obtains image data of a higher bit depth than the first bit depth. The image signal processor may pro…
- Who is the assignee on this patent?
- Lim Suk Hwan, Silverstein D Amnon, Cote Guy, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification G06T5/001. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 11 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).