Shutter glasses, display device, display system and display method
US-2015371054-A1 · Dec 24, 2015 · US
Eye state detection apparatus and method of detecting open and closed states of eye
US9082012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9082012-B2 |
| Application number | US-201213685804-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2012 |
| Priority date | Dec 6, 2011 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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Abstract
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An eye state detection apparatus includes a camera, a first calculator, a memory, a second calculator, and a third calculator. The camera obtains a plurality of face images of a driver. The first calculator calculates an opening amount of an eye of the driver based on each face image. The memory stores the opening amounts calculated by the first calculator. The second calculator groups the opening amounts into a plurality of groups in a sequential manner, calculates a group distribution of each group, calculates an entire distribution of all of the opening amounts, and sets the entire distribution as a reference distribution when a difference among the group distributions is within a predetermined range. The third calculator calculates an opening degree of the eye based on the reference distribution of the opening amounts when the reference distribution of the opening amounts is calculated by the second calculator.
First claim
Opening claim text (preview).
What is claimed is: 1. An eye state detection apparatus comprising: a camera that obtains a plurality of face images of a driver; a first calculator that calculates an opening amount of an eye of the drier based on each of the face images obtained by the camera; a memory that stores the opening amounts calculated by the first calculator in a sequential manner; a second calculator: grouping the opening amounts stored in the memory into a plurality of groups in a time-sequent…
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Classifications
- G06K9/00617Primary
Physics · mapped topic
Physics · mapped topic
- G06V40/197Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9082012B2 cover?
- An eye state detection apparatus includes a camera, a first calculator, a memory, a second calculator, and a third calculator. The camera obtains a plurality of face images of a driver. The first calculator calculates an opening amount of an eye of the driver based on each face image. The memory stores the opening amounts calculated by the first calculator. The second calculator groups the open…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification G06K9/00617. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 14 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).