Motion vector processing-based frame rate up-conversion method and device

A frame rate up-conversion and motion vector technology, applied in the field of video processing, can solve the problems of decreased correlation, blurred image edges, increased computational complexity and motion estimation complexity, etc.

Inactive Publication Date: 2012-09-12
SUN YAT SEN UNIV
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Problems solved by technology

[0004] However, when the video sequence moves violently or there is a scene switch, the correlation between adjacent frames decreases, and this interpolation method will fail.
At the same time, since MCFI is a block-based algorithm, when a segmented block is at the edge of the object and contains several moving objects, the motion vector of the block is inaccurate, resulting in blurred edges of the interpolated image
Moreover, no matching pix

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  • Motion vector processing-based frame rate up-conversion method and device
  • Motion vector processing-based frame rate up-conversion method and device
  • Motion vector processing-based frame rate up-conversion method and device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] In the embodiment of the present invention, the scene detection function is used to detect the input original video sequence to detect whether there is currently a scene change. If it is detected that the current scene changes, the original video sequence is processed by extrapolation; if no scene change is detected, the original video sequence is processed by interpolation. An initial motion vector field (MVF) is obtained by symmetric motion estimation (bid...

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Abstract

The embodiment of the invention discloses a motion vector processing-based frame rate up-conversion method and a motion vector processing-based frame rate up-conversion device. The method comprises the following steps of: performing scene detection on an input original video sequence to judge whether a scene is changed or not currently; if a scene change is detected, processing the original video sequence in an interpolation way to obtain processed data; if the scene change is not detected, processing the original video sequence in an extrapolation way to obtain processed data; calculating the processed data by using symmetrical motion estimation to obtain an initial motion vector field; performing motion vector processing on a motion vector of the initial motion vector field to obtain a new motion vector field; and performing adaptive motion compensation processing on a motion vector of the new motion vector field to obtain a frame to be interpolated. By the method and the device according to the embodiment of the invention, calculation complexity and motion estimation complexity can be lowered, the quality of an interpolated frame can be improved, and the requirements of real-time application can be met.

Description

technical field [0001] The invention relates to the technical field of video processing, in particular to a frame rate up-conversion method based on motion vector processing and a device thereof. Background technique [0002] The large-scale application of digital video and multimedia information has brought about the diversity of display formats. Therefore, the conversion between these formats is very important. Frame rate up-conversion, also known as frame rate up-conversion (FRUC), is a technology that can convert a low frame rate video sequence into a high frame rate video sequence. The frame rate increase has a wide range of applications, such as making the motion of video content look more continuous and natural. The frame rate increase is mainly used to realize the conversion between two different frame rate video scanning formats. An application of FRUC is High Definition Television (HDTV). The resolution of HDTV can reach up to 1920*1080, and the frame rate can ...

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Application Information

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IPC IPC(8): H04N7/01H04N7/26H04N19/513
Inventor 陈子琦罗笑南王若梅孟思明
Owner SUN YAT SEN UNIV
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