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Video processing device

An image processing and film technology, applied in image communication, film film standard conversion, standard conversion, etc., can solve the problem of image quality degradation of reflective subtitles, and achieve the effect of preventing image quality degradation

Inactive Publication Date: 2012-01-04
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps reduce how much data needs to be transferred between different parts within an animation display system when displaying moving images like videos on TVs or computer monitors. It detects where the user's movements are happening during playback and uses this knowledge to adjust what content will appear later based upon their location relative to other scenes that may have been previously displayed beforehand. By doing these things, the overall effect can improve visual performance for users while reducing any unwanted side effects caused by playing back static media.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving television displays' resolution capabilities while reducing distortional effects caused by inserting nonlinear scenes onto displayed frames.

Method used

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no. 1 approach

[0034] figure 1 It is a block diagram showing the configuration of the video processing device in the first embodiment. This video processing device includes an OSD synthesis unit 100 , field delay units 201 , 202 , 301 , and 302 , a film detection unit 303 , a phase comparison unit 400 , and an interpolation pixel generation unit 500 .

[0035] The OSD synthesis unit 100 synthesizes the interlace signal of the video input and the OSD input at a synthesis rate α. The synthesis ratio α represents the proportion of the OSD input in the output video, and can be expressed as “output video=α×OSD input+(1−α)×input video”.

[0036] The OSD synthesizing unit 100 outputs the video signal OF in which the OSD is synthesized on the input video for a position where α is larger than zero. Furthermore, the OSD synthesis unit 100 outputs an OSD synthesis signal S200 indicating a pixel for which the synthesis ratio α is greater than zero and for which OSD synthesis has been performed. In a...

no. 2 approach

[0051] image 3 It is a block diagram showing the configuration of the video processing device in the second embodiment. and the image processing device of the first embodiment ( figure 1 ) is that a motion detection unit 402 is provided in the phase comparison unit 400 . The motion detection unit 402 compares the pixels for which the OSD movement detection unit 401 detects that the OSD synthesis pixel has not moved, for at least one of the OSD synthesis signals S200, S201, and S202 representing the OSD synthesis signals S200, S201, and S202 representing the pixels that have undergone OSD synthesis. If there is a difference in at least one field of OSD synthesized video, it is determined that the OSD synthesized video has motion, and the interpolation data selection unit 503 selects the output data of the intra-field interpolation unit 502 .

[0052] For example, when the range of pixels for OSD synthesis is fixed and an image that changes within the range at a timing diffe...

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Abstract

Provided is a video processing device which converts an interlace signal into a progressive signal. The video processing device includes: an OSD synthesis unit (100) for combining the interlace signal with an OSD display such as a caption and a telop; a cinema detection unit (303) which compares video between different fields and detects pull-down regularity; a phase comparison unit (400) which compares the switching timing of the OSD display and the cinema video in accordance with the OSD synthesis signals (S200, S201, S202) indicating the OSD synthesis position by the OSD synthesis unit (100) and the pull-down regularity detected by the cinema detection unit (303); and an interpolation pixel generation unit (500) which generates a new pixel between the lines of the interlace signal by the interpolation method based on the detection result obtained by the cinema detection unit (303) and the comparison result obtained by the phase comparison unit (400).

Description

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Claims

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Application Information

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Owner PANASONIC CORP