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Digital detection method for transmitting movie scene by TV

A telecinetic and digital detection technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as complex hardware implementation, difficult detection, complex structure, etc., and achieve simple and reliable basic principles and hardware implementation Simple, effective and accurate detection

Inactive Publication Date: 2002-12-04
FUJITSU SEMICON DESIGN CHENGDU CO LTD
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AI Technical Summary

Problems solved by technology

[0013] 1. For the inter-field correlation detection of adjacent fields of NTSC TV movies, it cannot well reflect the inter-frame correlation of movies with frames as the basic playback unit
Moreover, the law of correlation between adjacent fields is complicated, and the hardware implementation is correspondingly complicated.
[0014] 2. The structure is complex, DSP (digital signal processor) is used for statistical detection, and the hardware implementation is complex
[0015] 3. Movie scenes with slow moving objects cannot be effectively detected
[0016] 4. It is difficult to detect movie scenes with small moving objects
[0017] 5. The mixed and edited TV screen (mixing of NTSC or PAL video and movie signals, which often occurs in news and entertainment programs) cannot be automatically selected and processed
[0018] 6. There is no method for optimizing TV movies in PAL format

Method used

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  • Digital detection method for transmitting movie scene by TV
  • Digital detection method for transmitting movie scene by TV
  • Digital detection method for transmitting movie scene by TV

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Embodiment Construction

[0055] In order to effectively detect the rules of TV movies. The method adopts multiple targeted schemes to realize the detection of the TV signal. The characteristics of the input scene are determined by a specially designed programmable scene change digital detection arbitrator. To this end, we adopted the following corresponding methods.

[0056] The input of this method is the image signal of continuous n fields, and they are simultaneously input in parallel to the multi-field field difference absolute value weighted sum unit, edge detection and multi-field field edge difference absolute value weighted sum unit, low-pass filter and multi-field low-frequency signal difference absolute value weighted summation unit ( Figure 5 ).

[0057] 1. Absolute value weighted summation unit of multi-field field difference

[0058] In order to effectively detect the rules of telecine signals of different systems, the characteristics of inter-field cross-correlation of various telec...

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Abstract

This invention discloses a digital detecting method of transferring film scenes in TV relating to the deinterlaced scanning of seamlessly joining TV, film pictures in changing an interlaced scanning TV to a scanning line-by-line TV. This method includes three channels of weight sum unit receiving continuous image signals, a related detecting unit, a history record unit, a TV and film mode signal state detecting unit and a arbitration unit of programmable scene variation digital signal. This invention can finish the detection of TV and film signals to be transferred to the film scene of deinterlaced working module at any time.

Description

Technical field: [0001] The present invention relates to a digital television technology, specifically to a de-interlacing technology for seamlessly splicing television and movie pictures by changing an interlaced scanning television into a progressive scanning television. Use it to instantly detect film signals, and transmit the signals to the de-interlacing module for de-interlacing processing. Background technique: [0002] Due to technical limitations at that time, analog TV technology adopted interlaced scanning technology. Due to its inherent technical defects, when traditional TV is played back, because the frame rate is too low, the field pictures are not synchronized in time, and the picture will produce obvious scanning lines, the picture will jump unstable, and the flicker is serious. There is still severe aliasing. When the high-brightness display of a large-screen TV or in a projection TV, these defects obviously affect the user's subjective effect of watching...

Claims

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Application Information

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IPC IPC(8): H04N7/01
Inventor 梁林薛云波
Owner FUJITSU SEMICON DESIGN CHENGDU CO LTD
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