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Motion estimation method and motion estimation device

A motion estimation and motion technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as displacement vector prediction error and low convergence speed

Active Publication Date: 2020-08-28
NOVATEK MICROELECTRONICS CORP
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  • Abstract
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  • Application Information

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Problems solved by technology

For complex motion in an image, in the traditional 3DRS technology, it will lead to low convergence speed and mispredict the displacement vector

Method used

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  • Motion estimation method and motion estimation device
  • Motion estimation method and motion estimation device
  • Motion estimation method and motion estimation device

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Embodiment Construction

[0064] The term "coupled (or connected)" as used throughout this specification (including the scope of the application) may refer to any direct or indirect means of connection. For example, if the text describes that a first device is coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected to the second device through other devices or indirectly connected to the second device by a connecting means. In addition, where possible, components / components / steps using the same reference numerals in the drawings and embodiments represent the same or similar parts. Components / components / steps that use the same reference numerals or use the same terminology in different embodiments may refer to the relevant descriptions of each other.

[0065] Please refer to Figure 4 , Figure 4 It is a schematic diagram illustrating the motion estimator 20 according to an embodimen...

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Abstract

A device and method for motion estimation. The motion estimation device includes a candidate set generation circuit and a motion vector judgment circuit. The candidate set generating circuit selects the motion vector of the adjacent block to be added to the motion vector candidate set of the current block of the current frame. The current block and one of the adjacent blocks belong to the same row (or the same column), and one of the adjacent blocks is a block of the current frame or a block of the previous frame. The motion vector judging circuit is coupled to the candidate set generating circuit to receive the motion vector candidate set. The motion vector judgment circuit judges the motion vector of the current block in the current frame according to the motion vector candidate set.

Description

technical field [0001] The present invention relates to a motion estimation method and motion estimator, and in particular, to a motion estimation method and motion estimator suitable for parallel processing. Background technique [0002] Motion estimation is a very important technique in frame rate up conversion (FRC). Motion estimation refers to finding the best or second best motion vector (Motion Vector). Usually an image frame may be divided into multiple blocks. The motion vector may indicate the direction and distance of movement of the block. Neighboring frames usually exhibit strong correlations in time and space, and usually have similar or identical parts to each other. The related art presents a three-dimensional recursive search (3DRS) block matcher, which has two candidate motion vectors set as optimal motion vectors of the upper left and upper right adjacent blocks of the current block, wherein, The corresponding convergence directions or search directions...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/513H04N19/57H04N19/573
CPCH04N19/513H04N19/57H04N19/573
Inventor 胡鹏媛田茜陈彦菘杜元甲
Owner NOVATEK MICROELECTRONICS CORP