Automatic extraction of closed caption data from frames of an audio video (av) stream using image filtering
US-2016371556-A1 · Dec 22, 2016 · US
Method and apparatus for caption detection
US8929461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929461-B2 |
| Application number | US-73622507-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2007 |
| Priority date | Apr 17, 2007 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 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.
Machine-readable media, methods, apparatus and system for caption detection are described. In some embodiments, a plurality of text boxes may be detected from a plurality of frames. A first percentage of the plurality of text boxes whose locations on the plurality of frames fall into a location range may be obtained. A second percentage of the plurality of text boxes whose sizes fall into a size range may be obtained. Then, it may be determined if the first percentage and the location range are acceptable and if the second percentage and the size range are acceptable.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: detecting a plurality of text boxes from a plurality of video frames, wherein detecting includes obtaining a first percentage of the plurality of text boxes whose locations associated with the plurality of the video frames fall within a location range, wherein the first percentage and the location range are regarded as acceptable if the first percentage is equal to or greater than a first determined value and if the location range is…
Assignees
Inventors
Classifications
- G06K9/3266Primary
Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
- G06V20/635Primary
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 US8929461B2 cover?
- Machine-readable media, methods, apparatus and system for caption detection are described. In some embodiments, a plurality of text boxes may be detected from a plurality of frames. A first percentage of the plurality of text boxes whose locations on the plurality of frames fall into a location range may be obtained. A second percentage of the plurality of text boxes whose sizes fall into a siz…
- Who is the assignee on this patent?
- Hu Wei, Ma Rui, Intel Corp
- What technology area does this patent fall under?
- Primary CPC classification G06K9/3266. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).