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Frame rate upconversion method and system

A conversion method and technology of a conversion system, applied in the field of frame rate up-conversion method and system, capable of solving problems such as image blur and jitter, affecting video image quality, etc., and achieving the effect of low jitter and high image quality

Active Publication Date: 2017-01-04
和宇健康科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the video image scene is moving, there is no linear relationship between two consecutive frames of images, so continuing to use the above method to insert a new intermediate frame will cause the image to blur and shake, affecting the quality of the video image

Method used

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  • Frame rate upconversion method and system
  • Frame rate upconversion method and system

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] see figure 2 , is a schematic diagram of a frame rate up-conversion method provided by an embodiment of the present invention; figure 2 As shown, the frame rate up-conversion method provided in this embodiment includes:

[0026] S101. Perform motion estimation on two adjacent frame images in a video image to obtain motion vec...

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Abstract

The embodiment of the invention discloses a frame rate upconversion method and system. The method comprises the steps of carrying out motion estimation on two adjacent frames of images in video images, thereby obtaining motion vectors of a first interpolation frame and a second interpolation frame; carrying out frame motion compensation on the motion vectors of the first interpolation frame and the second interpolation frame, thereby obtaining the images corresponding to the first interpolation frame and the second interpolation frame; carrying out image integration on the images corresponding to the first interpolation frame and the second interpolation frame, thereby obtaining an insert frame image, and carrying out secondary motion estimation and compensation filling on a few cavities existing in the insert frame image. Unidirectional motion estimation is carried out on two adjacent frames of images, the motion vectors of the two interpolation frames are obtained, the images of the two interpolation frames are obtained through motion compensation, the images of the two interpolation frames are integrated, thereby obtaining the insert frame image, the secondary motion estimation and compensation are carried out on the insert frame image to fill the cavities, the obtained insert frame image is low in dithering and high in image quality and is more consistent with the actual video frame motion.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of video images, in particular to a frame rate up-conversion method and system. Background technique [0002] Frame rate up-conversion is to insert a new intermediate frame between the original frames in the video image to realize the increase of the video image rate. Such as figure 1 Shown is the schematic for frame rate up-conversion, assuming f t-1 and f t+1 is the image of two consecutive frames in the original video image, at f t-1 and f t+1 Insert a new in-between image f t That is, the frame rate up-conversion, due to the insertion of new intermediate frames, the rate of the video image has been improved. [0003] Existing methods for inserting a new intermediate frame between original frames mainly include frame duplication, black frame insertion, gray frame insertion, etc. point, find the estimated point between the same pixel points, and realize the interpolation of the...

Claims

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Application Information

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IPC IPC(8): H04N19/577H04N19/513H04N19/533
CPCH04N19/513H04N19/533H04N19/577
Inventor 谭迎春田逢春刁小林徐华秦海宁汪洋东曹颖君刘然
Owner 和宇健康科技股份有限公司
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