Method for detail real-time replay of digital television

A digital TV and detail technology, applied in color TV parts, TV system parts, TV, etc., can solve the problem that low-resolution signals cannot display high-resolution performance

Inactive Publication Date: 2008-08-20
NANJING UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the existing digital TV cannot display high-resolution performance for low-resolution signals, the present invention provides a method for real-time reproduction of digital TV details

Method used

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  • Method for detail real-time replay of digital television
  • Method for detail real-time replay of digital television
  • Method for detail real-time replay of digital television

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Embodiment Construction

[0015] A method for reproducing digital TV details in real time according to the present invention comprises five steps of determining the enlarged area, judging the reconstruction feasibility, motion estimation, super-resolution reconstruction, and picture display.

[0016] In the part of determining the magnified area, the user mainly selects the rectangular target area on the current screen through the remote control to reproduce the details. A display window similar to a picture-in-picture will appear on the screen to show the effect of zooming in. (see attached figure 2 )

[0017] The main purpose of the reconstruction feasibility judgment in step 2 is to judge whether the frame sequence about the selected scene is suitable for the existing super-resolution reconstruction algorithm. The discrimination is mainly based on the intensity of change between adjacent frames, that is, to calculate the average difference square sum s between the same target area within two fram...

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Abstract

The present invention discloses a method which is used for real-time reproducing the detail of the digital television. The method mainly comprises five procedures of confirming the amplifying area, discriminating the reconstruction feasibility, estimating the motion, reconstructing the super-resolution and displaying the picture. When the user confirms the area which needs to be amplified, the system discriminates whether the area is suitable for reconstructing the super-resolution. If suitable the interpolation is executed; and if not suitable the frame sequence comprising the area is executed with motion estimation. Then the super-resolution reconstruction is executed. The reconstructed image is then displayed on the special area in the picture and the next frame of image is circulating-executed. The invention uses the redundant information of the video data on the time, and real-time restores the high-frequency information which is lost because of sampling according to the requirement of the user through analyzing the continuous multi-frame digital picture data. The digital picture which has high definition and resolving capability higher than the original resolving capability is constructed. The invention has broad market prospect and extraordinary-high economic value.

Description

1. Technical field [0001] The invention relates to a method capable of reproducing digital TV image details in real time. Specifically, on the basis of existing digital TV hardware, using super-resolution reconstruction technology, by analyzing continuous multi-frame digital image data, the high-frequency lost due to sampling can be restored in real time in the local area required by the picture. Information, the realization method of constructing a high-definition image higher than the original resolution. 2. Background technology [0002] Super-resolution reconstruction is a technique aimed at constructing one or more frames of high-resolution, high-quality digital images by synthesizing information from low-resolution image sequences. This technology has been extensively studied in the past ten years and has achieved remarkable results. Although it is not yet possible to achieve reconstruction operations applicable to all types of active videos and all motion models, fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/44H04N7/01H04N7/26H04N21/472
Inventor 袁杰朱翔臧炅都思丹
Owner NANJING UNIV
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