Method for scrolling text processing and image processing apparatus using the same
US10445583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Mar 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0142
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing method and an image processing apparatus that utilize scrolling text information and moving edge-pairs of an edge map to determine text regions in interpolated frame is introduced herein. Text blocks are detected according to the moving edges-pair of the edge map. Next, a first moving vector histogram and a second moving vector histogram are built according to the detected text blocks. An existence of scrolling text and motion vector of the scrolling text in the frames are determined according to the first and second moving vector histograms. A scrolling text region in at least one of the first frame and the second frame is determined in block line unit, and positions of each scrolling text pixels in an interpolated are determined according to the motion vector of the scrolling text and the scrolling text region in the at least one of the first frame and the second frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.