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US-9424587-B2 · Aug 23, 2016 · US
Motion vector detection apparatus, motion vector detection method, and computer-readable storage medium
US8929449B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929449-B2 |
| Application number | US-201113187983-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 21, 2011 |
| Priority date | Jul 30, 2010 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A motion vector detection apparatus comprising, a memory for storing a reference image for motion prediction encoding, a unit for detecting a first motion vector by comparing the reference image with an encoding target block of a plurality of blocks obtained by dividing a field image, a converter for converting the field image into a frame image by performing interlace/progressive conversion, a unit for generating a reduced image by reducing the frame image, a frame memory for storing the reduced image, and a unit for detecting a second motion vector based on a reference reduced image and a reduced image of the encoding target block of reduced images stored in the frame memory, wherein the second motion vector detected with respect to the reduced image of the encoding target block is used to determine a search area for detecting the first motion vector.
First claim
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What is claimed is: 1. An apparatus comprising: a converter that generates a progressive image from a first field image and a second field image prior to the first field image by using a conversion method, wherein the conversion method includes (a) determining a difference between an average value of pixels at both sides of a first pixel in the first field image and a pixel value of a second pixel which is in the second field image and corresponds to the first pixel, (b) generatin…
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- What does patent US8929449B2 cover?
- A motion vector detection apparatus comprising, a memory for storing a reference image for motion prediction encoding, a unit for detecting a first motion vector by comparing the reference image with an encoding target block of a plurality of blocks obtained by dividing a field image, a converter for converting the field image into a frame image by performing interlace/progressive conversion, a…
- Who is the assignee on this patent?
- Sakamoto Daisuke, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H04N7/465. Mapped technology areas include Electricity.
- 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).