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Motion vector improving device

A motion vector and motion technology, applied in the field of motion vector improvement devices, can solve problems such as image defects and motion vector estimation errors, and achieve the effect of reducing image defects

Inactive Publication Date: 2011-08-17
SUNPLUS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the above-mentioned smoothing process is performed at the intersection of images of two moving objects, or at the edge of dynamic and static areas, it will cause motion vector estimation errors, and image defects (such as halo-like defects) will instead be generated.

Method used

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0060] In addition, wherever possible, elements / components / symbols with the same reference numerals are used in the drawings and embodiments to represent the same or similar parts.

[0061] Such as Figure 1A as shown, Figure 1A It is a structural diagram of an image motion vector estimation and compensation system 100 . This embodiment can be applied to the image standard of the interlaced scanning mode or the progressive scanning mode, and in order to illustrate this embodiment, Figure 1A The image signal 102 in the interlaced mode is taken as an example. Please refer to Figure 1AThe motion estimation unit 110 receives the image signal 102 to predict the trajectory of the moving object in the image signal 102 , and generates the im...

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Abstract

The invention discloses a motion vector improving device comprising a control unit, N filtering units and a mixing unit, wherein the control unit receives a motion estimation signal generated by a motion estimation unit and calculates a plurality of variation parameters according to the current motion vectors and peripheral motion vectors so as to generate a control signal; the N filtering units respectively calculate N filtering motion vectors by N analysis and process modes; the mixing unit carries out weighted mixing on the filtering motion vectors according to the control signal so as to adjust and output an improved motion vector. The device disclosed by the invention can reduce image defects caused by smoothing.

Description

technical field [0001] The present invention relates to motion estimation and compensation technology, and in particular to a motion vector improvement device for increasing the vertical resolution of a picture or increasing the playback picture rate. Background technique [0002] The way to display images on display devices can be roughly divided into interlace mode (commonly used in cathode ray tube (CRT) TV) and progressive scan mode (commonly used in digital TV or movies, etc.) . The interlaced scan mode only transmits or plays half of the scan lines in the image at a time, that is, the odd scan lines (called odd field) or the even scan lines (called even field) in the picture. Interleave. Since each frame field (field) only has the information of odd or even scan lines, the images in the vertical direction may be discontinuous during playback. In contrast, the progressive scan mode is to play the scan lines of the image one by one. However, the frame rate of this mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14H04N7/01
Inventor 黄正斌
Owner SUNPLUS TECH CO LTD