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Motion estimation method, chip, electronic equipment and storage medium

A motion estimation and chip technology, applied in the field of image processing, can solve problems such as video jitter and blur, and achieve the effect of ensuring motion continuity, improving accuracy, and increasing accuracy.

Pending Publication Date: 2021-12-31
AMOLOGIC (SHANGHAI) CO LTD
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Problems solved by technology

If we just use simple frame repetition or averaging adjacent frames to increase the frame rate, but still can't solve the problem of video jitter and blur

Method used

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  • Motion estimation method, chip, electronic equipment and storage medium
  • Motion estimation method, chip, electronic equipment and storage medium
  • Motion estimation method, chip, electronic equipment and storage medium

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Embodiment Construction

[0021] It can be seen from the background art that the current 3D recursive search algorithm has been widely used in the frame rate conversion technology. However, this motion estimation method has the problem of poor accuracy of motion vector estimation, especially for motion estimation of small foreground moving objects.

[0022] Specifically, the 3D recursive search algorithm uses the continuity of object motion in the video to perform motion estimation through time and space recursion. Time recursion is to use the correlation between the block of the current frame and the adjacent block at the corresponding position of the previous frame to transfer the motion vector of the adjacent block of the previous frame to the block of the current frame. Similarly, spatial recursion utilizes the correlation between the motion of the block of the current frame and the adjacent block of the current frame, and transfers the motion vector of the adjacent block of the current frame to th...

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Abstract

The invention discloses a motion estimation method, a chip, electronic equipment and a storage medium. The motion estimation method comprises the following steps: providing an original frame; obtaining a matching block corresponding to the current block of the current frame in the previous frame by using a full search method, and obtaining a matching block corresponding to the current block of the previous frame in the current frame; obtaining a first candidate vector set corresponding to the corresponding block of the current frame according to the current block of the current frame and the corresponding matching block, and obtaining a second candidate vector set corresponding to the corresponding block of the previous frame according to the current block of the previous frame and the corresponding matching block; setting a frame to be inserted between the previous frame and the current frame; and according to the first candidate vector set and the second candidate vector set, obtaining a bidirectional motion vector corresponding to the current block of the to-be-interpolated frame, and using the bidirectional motion vector as a candidate motion vector of the corresponding block of the to-be-interpolated frame. The embodiment of the invention is beneficial to improving the accuracy of motion estimation.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of image processing, and in particular, to a motion estimation method, a chip, an electronic device, and a storage medium. Background technique [0002] The video frame rate is the measure of the number of frames played by the display device within one second. Generally, when the playback frame rate is 60 frames per second, the human eye will feel that the video is more realistic and smooth. In practical applications, when low frame rate video resources are played on a display device, human eyes can feel jitter and blur. In order to solve the video jitter and blur effects caused by low frame rate, the subjective visual effect of video images can be improved by increasing the video frame rate technology. If we just use simple frame repetition or averaging adjacent frames to increase the frame rate, it still cannot solve the problem of video jitter and blur. [0003] The main techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/207G06T7/231
CPCG06T7/207G06T7/231G06T2207/10016G06T3/4007G06T7/223H04N7/014H04N7/0127G06T7/215
Inventor 鲍政嵇涛汪淳王东建陈旭昀
Owner AMOLOGIC (SHANGHAI) CO LTD
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