US 8,013,936 B2 · De-interlacing method and apparatus

Abstract

A de-interlacing method is applied to a to-be-de-interlaced field including display pixels of display lines and to-be-interpolated pixels of to-be-interpolated lines. First, a corresponding edge-direction value of each of edge pixels in the to-be-de-interlaced field is determined. Next, it is judged whether one of the display pixels near each to-be-interpolated pixel has a corresponding edge-direction value so that a judgement result is obtained. Then, a corresponding edge-direction value of each to-be-interpolated pixel is set according to the corresponding edge-direction values of specific display pixels of the display pixels near the to-be-interpolated pixel if the judgement result is affirmative. Finally, a corresponding display pixel pair of up and down display lines near each to-be-interpolated pixel is selected according to the corresponding edge-direction value of each to-be-interpolated pixel so that a luminance value and a chrominance value of the to-be-interpolated pixel are calculated.

Claims12

Dependent claims

A de-interlacing method applied to a to-be-de-interlaced field, which comprises a plurality of display pixels of display lines and a plurality of to-be-interpolated pixels of to-be-interpolated lines, the method comprising the steps of:

(a) determining an edge-direction value corresponding to each of edge pixels in the to-be-de-interlaced field;
(b) judging whether one of the display pixels near each of the to-be-interpolated pixels has a corresponding edge-direction value to obtain a judgement result;
(c) setting the corresponding edge-direction value for each of the to-be-interpolated pixels according to the corresponding edge-direction values of specific display pixels near each of the to-be-interpolated pixels if the judgement result in step (b) is affirmative;
and
(d) selecting a corresponding display pixel pair from the display lines above and under each of the to-be-interpolated pixels according to the corresponding edge-direction value of each of the to-be-interpolated pixels so as to calculate a luminance value and a chrominance value of each of the to-be-interpolated pixels.

2 more elements

A de-interlacing apparatus for a to-be-de-interlaced field, which comprises a plurality of display pixels of display lines and a plurality of to-be-interpolated pixels of to-be-interpolated lines, the apparatus comprising:

an edge pixel determining unit for determining an edge-direction value corresponding to each of edge pixels in the to-be-de-interlaced field;
an edge-direction value determining unit for judging whether one of the display pixels near each of the to-be-interpolated pixels has a corresponding edge-direction value, and setting the corresponding edge-direction value for each of the to-be-interpolated pixels according to the corresponding edge-direction values of specific display pixels of the display pixels near the each of the to-be-interpolated pixels;
and
a calculating unit for selecting a corresponding display pixel pair from the display lines above and under each of the to-be-interpolated pixels according to the corresponding edge-direction value of each of the to-be-interpolated pixels so as to calculate a luminance value and a chrominance value of each of the to-be-interpolated pixels.

1 more element

Dependencies are inferred from the claim text.

De-interlacing method and apparatus

Life of this patent

De-interlacing method and apparatus

Life of this patent

Abstract

Claims12