Post-processor design supporting non-flickering interlaced display
View Patent ↗Disclosed herein is a method and apparatus for preventing and eliminating undesirable effects in displayed video. The method may include receiving video information and decoding the video information. The method may also include processing the number of illuminable lines associated with a video frame and blanking a remainder of the illuminable lines. Blanking the remainder of the illuminable lines may prevent and eliminate undesirable effects in the displayed video. The illuminable lines may be processed, such that each field may comprise an even number of corresponding, illuminable lines 530 . The fields, however, are not required to have the same number of lines. In an embodiment according to the present invention, no active lines in one field may be below a blanked line in a corresponding field. The apparatus may include a video processor including a video post-processing unit adapted to determine a number lines to be illuminated on a particular video display device and a number of lines to be blanked in order to prevent and eliminate undesirable effects in the displayed video.
1. A method of preventing and eliminating undesirable effects in displayed video, the method comprising:
receiving video information;
decoding the video information;
processing a number of illuminable lines associated with a video frame;
blanking a remainder of the illuminable lines, wherein blanking the remainder of the illuminable lines prevents and eliminates undesirable effects in the displayed video; and
wherein B=n mod 4, wherein B=the number of blanked lines, and n=number of displayable lines on the display;
and wherein M b =M t =(n−B)/2, wherein M t =number of displayable lines in a top field, and wherein M b =number of displayable lines in a bottom field.
2. The method according to claim 1 , wherein receiving the video information comprises receiving the video information from a video input device.
3. The method according to claim 2 , wherein the video input device may comprise a wired or wireless communication device adapted to transmit video information.
4. The method according to claim 1 , further comprising storing the video information in a video buffer memory until the video information is decoded.
5. The method according to claim 1 , wherein decoding the video information further comprises decoding the video information field-by-field.
6. The method according to claim 1 , wherein processing the number of illuminable lines associated with a video frame is based upon a number of illuminable lines available in an associated video display device.
7. The method of claim 1 , wherein the display comprises 483 displayable lines.
8. A video processor adapted to prevent and eliminate undesirable effects in a displayed video, the video processor comprising:
a video decoder for one of decoding and decompressing one of encoded and compressed video information;
a video post-processing unit adapted to determine a number lines to be illuminated on a particular video display device and a number of lines to be blanked in order to prevent and eliminate undesirable effects in the displayed video; and
wherein B=n mod 4, wherein B=the number of blanked lines, and n=number of displayable lines on the display;
and wherein M b =M t =(n−B)/2, wherein M t =number of displayable lines in a top field, and wherein M b =number of displayable lines in a bottom field.
9. The video processor according to claim 8 , further comprising a video input device adapted to transmit video to the video processor.
10. The video processor according to claim 9 , wherein the video input device comprises one of a wired and wireless communication device.
11. The video processor according to claim 8 , further comprising a video buffer memory for storing received video information.
12. The video processor according to claim 8 , further comprising an output engine adapted to assemble processed video information for transmission via a video output to a display device.
13. The video processor according to claim 8 , further comprising processing the video information into a processed top field comprising an even number of illuminable lines and a processed bottom field comprising an even number of illuminable lines.
14. The video processor according to claim 13 , further comprising processing the video information wherein each field comprises at least one blanked line.