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Motion subtitle deinterleaving method, system, mobile terminal and readable storage medium

A technology for deinterlacing and subtitles, which is applied in the field of mobile terminals and readable storage media, systems, and motion subtitle deinterlacing methods, and can solve the problems of poor high-frequency image processing, jaggedness, flickering, etc.

Active Publication Date: 2020-10-27
FUZHOU ROCKCHIP SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, chips with field mode deinterlacing function perform deinterleaving operation on a frame-by-frame basis, and do not handle high-frequency moving images well. Therefore, for field mode videos with moving subtitles, "jaggies" and "jaggies" are prone to appear in the subtitle area. "flicker" phenomenon

Method used

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  • Motion subtitle deinterleaving method, system, mobile terminal and readable storage medium
  • Motion subtitle deinterleaving method, system, mobile terminal and readable storage medium
  • Motion subtitle deinterleaving method, system, mobile terminal and readable storage medium

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Embodiment 1

[0080] Specifically, such as figure 2 As shown, this embodiment provides a method for deinterleaving motion subtitles, and the method for deinterleaving motion subtitles includes the following steps:

[0081] S10, software processing steps, including:

[0082] S100, moving subtitle area processing step: detecting whether the current frame moving subtitle area image block in the video series is a frame image or a field image, and when the image block of the current frame is a field image, perform motion estimation to obtain the displacement of the current frame relative to the previous frame vector MV_F, and obtain the displacement vector MV between the two fields of the current frame according to the displacement vector MV_F, obtain the corresponding matching image block from the field of the adjacent frame and the field of the current frame to compensate the field image block of the current frame, and output the software Handled motion subtitle area.

[0083] S101, image o...

Embodiment 2

[0117] Such as Figure 6 As shown, the present embodiment provides a motion subtitle deinterleaving system 1, the motion subtitle deinterleaving system 1 includes: a hardware processing module 20 and a software processing module 10, wherein the software processing module 10 includes a motion subtitle area processing sub Module 100 and image output processing sub-module 101.

[0118] In this embodiment, the hardware processing module 20 reads the frame identifier and field identifier of the video code stream through the video processing chip to detect whether the video series is a frame image or a field image, and when the video series is a field image, the The field image is deinterleaved, and the hardware processed image is output; when the video series is a frame image, the frame image is directly output.

[0119] The moving subtitle area processing submodule 100 of the software processing module 10 is used to detect whether the current frame moving subtitle area image bloc...

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Abstract

The invention provides a motion subtitles de-interleaving method and system, a mobile terminal and a readable storage medium. The method comprises the following steps: a hardware processing step: performing de-interleaving processing on a field image when the video series is the field image, and outputting the hardware processing image, and directly outputting a frame image when the video series is the frame image; a software processing step: including a motion subtitles region processing step of detecting whether the current frame motion subtitles region image block in the video series in theframe image or the field image, performing motion estimation when the image block of the current frame is the field image, and acquiring the correspondingly matched image block to compensate to the field image block of the current frame from the field of the adjacent frame and the field of the current frame according to the motion estimation result and the detected field sequence; and an image output processing step of determining whether the finally output image is the hardware processed image or image after the software processed motion subtitles region according to a preset logic relation.Through the de-interleaving method provided by the invention, the sawtooth or flickering phenomena occurring on the motion subtitles can be effectively solved.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to the technical field of motion subtitles of images, and specifically relates to a method, system, mobile terminal and readable storage medium for de-interlacing motion subtitles. [0002] Copyright statement [0003] The disclosure of this patent document contains material that is protected by copyright. This copyright belongs to the copyright owner. The copyright owner has no objection to the reproduction by anyone of the patent document or the patent disclosure as it exists in the official records and files of the Patent and Trademark Office. Background technique [0004] Videos played on TV often have motion subtitles to convey some text information. Motion subtitles are usually not part of the video content, but are added to the video after post-production, so the frame field format of motion subtitles may be different from the original video series. Generally, chips...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/431H04N21/488H04N5/278
CPCH04N5/278H04N21/4312H04N21/4314H04N21/4884
Inventor 张善旭蒋诗露龚书龙
Owner FUZHOU ROCKCHIP SEMICON