KR970032267A - 3D image enhancement system - Google Patents

3D image enhancement system Download PDF

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Publication number
KR970032267A
KR970032267A KR1019970012151A KR19970012151A KR970032267A KR 970032267 A KR970032267 A KR 970032267A KR 1019970012151 A KR1019970012151 A KR 1019970012151A KR 19970012151 A KR19970012151 A KR 19970012151A KR 970032267 A KR970032267 A KR 970032267A
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South Korea
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signal
band
spatial
stereo
sound
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KR1019970012151A
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Korean (ko)
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KR100239918B1 (en
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최평
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최평
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Priority to KR1019970012151A priority Critical patent/KR100239918B1/en
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Priority to JP24599697A priority patent/JP3663461B2/en
Priority to EP97117057A priority patent/EP0865226B1/en
Priority to DE69737087T priority patent/DE69737087T2/en
Priority to US08/944,211 priority patent/US6587565B1/en
Priority to HK99100838A priority patent/HK1016010A1/en
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Publication of KR100239918B1 publication Critical patent/KR100239918B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Abstract

본 발명은 스테레오신호에 대해 좌, 우측 2개의 스피커를 이용하여 3차원 이미지의 소리를 재현함에 있어 소리의 공간감을 확대함과 아울러 배경음을 강조하여 라이브한 효과를 도출시키도록 하는 것으로 공간감을 확대하기 위한 기존 기술은 원 스테레오의 좌측과 우측의 음을 L+R 그리고 L-R의 신호 처리 및 주파수적인 보상을 거쳐 최종 매트릭스에서 재배치함으로서 다소의 입체감은 형성할 수 있으나 원음손실의 영향이 크고 특히 L+R신호의 부가로 인해 오히려 소프트(SOFT)에 따라서는 스테레오감을 없애버리는 역효과 및 저역대신호의 양쪽채널부가로 인해 저역대신호의 좌우측분리가 배제되어져 음의 명료성이 떨어져 기존의 스테레오 대비 더욱 음질이나 분리도가 떨어지는 역현상이 일어나는 문제점이 있는 것이다.The present invention expands the sense of space by reproducing the sound effect by emphasizing the background sound while reproducing the sound of a 3D image using two left and right speakers for a stereo signal. The existing technology for the rear stereo sound is rearranged in the final matrix through the L + R and LR signal processing and frequency compensation of the left and right sides of the original stereo, but some stereoscopic effect can be formed. Due to the addition of the signal, rather than the SOFT, the side effect of eliminating the stereo feeling and the addition of both channels of the low band signal eliminate the left and right separation of the low band signal, resulting in lower sound intelligibility and lower sound quality or separation. Inverse phenomenon occurs.

따라서 본 발명은 좌, 우측 각각의 신호원으로부터 공간성 이미지를 주파수적 측면에서의 추출을 위한 각 신호 채널측의 공간성소성부, 중저역의 원음보상을 위한 대역보상부, 좌우 각 채널의 제1, 제2매트릭스 수단을 구성함으로써 상기된 문제점을 해결한 것이다.Accordingly, the present invention provides a spatial plasticity section on each signal channel side for extracting spatial images from each of the left and right signal sources on the frequency side, a band compensator for mid- and low-frequency original sound compensation, and first and second channels on the left and right channels. The above problem is solved by constructing two matrix means.

Description

3차원 이미지 스테레오 향상 시스템3D image enhancement system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

도 1은 본 발명의 블록다이어그램.1 is a block diagram of the present invention.

Claims (10)

스테레오 신호를 입력으로 3차원 이미지 스테레오 신호를 만듦에 있어, 좌, 우측 신호를 입력으로 하여 음의 공간성과 방향성을 강조하기 의해 좌, 우측 신호입력라인에 각각 설치되는 공간성조성부와, 좌, 우채널 주신호와 상기 공간성조성부의 결과신호를 연산하여 공간감확대신호를 도출키 위한 제1좌, 우채널 매트릭스와 좌, 우측 신호를 입력으로 하여 대역보강과 유지를 위한 신호를 도출하는 대역보상부와 상기 제1좌우채널 매트릭스의 출력신호와 대역보상부 보상신호를 가산시키는 제2좌, 우채널 매트릭스로 이루어진 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.In making 3D image stereo signal by inputting stereo signal, spatial composition part installed in left and right signal input lines and left and right channel respectively by emphasizing sound spatiality and directionality by inputting left and right signals A band compensator for deriving a signal for band enhancement and maintenance by inputting first left and right channel matrices and left and right signals for deriving a spatial enhancement signal by calculating a main signal and a result signal of the spatial composition generator; And a second left and right channel matrix configured to add an output signal of the first left and right channel matrix and a band compensator compensation signal. 청구항 1에 있어서, 공간성조성부는 원신호에서 빼낼 타채널의 신호의 주파수대역별 이득을 달리 해감으로서 좌우측의 음의 공간성 및 방향성을 올리기 위해 구성하는 필터의 특성을 갖게 되는 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.The three-dimensional image stereo according to claim 1, wherein the spatial composition part has a characteristic of a filter configured to increase the spatial and directionality of the left and right sound by reducing the gain for each frequency band of the signal of another channel to be extracted from the original signal. Enhance system. 청구항 1에 있어서, 대역보상부는 원신호의 저역을 보강하고 중역대를 유지하기 위해 저역통과필터 특성을 갖는 3차원 이미지 스테레오향상시스템.The system of claim 1, wherein the band compensator has a low pass filter characteristic to reinforce the low range of the original signal and maintain the mid range. 청구항 1에 있어서, 제2 좌, 우채널 매트릭스는 좌측 출력 L+α(L'-R')+βL"이고 우측 출력이 R+α(R'-L')+βR" 인 특성을 가지며 여기서 L"과 R"은 저역 통과특성을 가지고 L'과 R'은 고역 통과특성을 가지는 것을 특징으로 하는 3차원 이미지 스테레오향상 시스템.The method of claim 1, wherein the second left and right channel matrix has a characteristic of having a left output L + α (L'-R ') + βL "and a right output of R + α (R'-L') + βR". L " and R " have low pass characteristics, and L 'and R' have high pass characteristics. 스테레오 신호를 입력으로 3차원 이미지 스테레오신호를 만듦에 있어, 좌측과 우측의 각각의 신호로부터 공간성 및 방향성 강조성분을 도출키 위한 공간성조성수단과, 공간성 조성수단의 이득을 조정할 수 있는 이득조정 수단과, 좌측과 우측의 각각의 신호로부터 주신호채널의 특정대역 보강과 유지를 위한 대역보상수단과, 상기 신호의 주채널신호와의 상호 이득과 가감산 구조설정이 가능한 제1 제2 매트릭스수단으로 이루어진 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.In making a three-dimensional image stereo signal by inputting a stereo signal, Spatial composition means for deriving spatial and directional enhancement components from each of the left and right signals, Gain adjusting means for adjusting the gain of the spatial composition means; Band compensation means for reinforcing and maintaining a specific band of a main signal channel from each of the left and right signals, and a first second matrix means capable of setting mutual gain and addition / subtraction structure of the main channel signal of the signal; 3D image enhancement system, characterized in that. 청구항 5에 있어서, 공간성조성수단은 고역통과필터특성을 갖는 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.6. The three-dimensional image stereo enhancement system according to claim 5, wherein the spatial composition means has a high pass filter characteristic. 청구항 5에 있어서, 대역보상수단은 저역통과필터특성을 갖는 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.The system of claim 5, wherein the band compensating means has a low pass filter characteristic. 청구항 5에 있어서, 공간성조성수단과 대역보상수단의 주파수대 이득설정이 가능토록 구성된 이득가변요소를 가진 3차원 이미지 스테레오 향상 시스템.6. The three-dimensional image stereo enhancement system according to claim 5, wherein the gain variable element is configured to enable frequency band gain setting of the spatial composition means and the band compensation means. 스테레오 입력신호를 3차원 이미지 스테레오신호로 변환하여 저장을 하기위한 장치에 있어, 좌측과 우측의 각각의 신호로부터 공간성 및 방향성 강조성분을 도출키 위한 공간성조성수단과, 상기 공간성 조성수단의 출력신호와 주채널 좌, 우측 신호와 매트릭스시키는 제1 좌, 우채널 매트릭스와 좌측과 우측의 각각의 신호로부터 주신호채널의 특정대역 보강과 유지를 위한 대역보상수단과, 상기 제1 좌, 우채널 매트릭스신호와 대역보상신호와 매트릭스시키는 제2 좌, 우채널 매트릭스로 이루어진 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.An apparatus for converting and storing a stereo input signal into a three-dimensional image stereo signal, comprising: spatial composition means for deriving spatial and directional enhancement components from respective signals on the left and right sides, and an output signal of the spatial composition means; Band compensation means for reinforcing and maintaining a specific band of the main signal channel from the first left and right channel matrixes matrixed with the main channel left and right signals, and the respective left and right signals, and the first left and right channel matrix signals And a second left and right channel matrix for matrixing the band compensation signal and the matrix. 청구항 9에 있어서, 제2 좌, 우채널 매트릭스는 좌측 출력 L+α(L'+R')+βL"이고 우측 출력이 R+α(R'-L')+βR" 특성을 가지며 여기서 L"과 R"은 저역통과특성을 가지고 L'과 R'은 고역 통과특성을 가지는 것을 특징으로 하는 3차원 이미지 스테레오 향상 시스템.The method of claim 9, wherein the second left and right channel matrix has a left output L + α (L ′ + R ′) + βL ″ and the right output has R + α (R′-L ′) + βR ″ characteristics where L And R are low pass characteristics, and L 'and R' have high pass characteristics. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019970012151A 1997-03-13 1997-03-28 3 dimension stereo improving system KR100239918B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1019970012151A KR100239918B1 (en) 1997-03-28 1997-03-28 3 dimension stereo improving system
JP24599697A JP3663461B2 (en) 1997-03-13 1997-08-28 Frequency selective spatial improvement system
EP97117057A EP0865226B1 (en) 1997-03-13 1997-10-01 A system for improving a spatial effect of stereo sound or encoded sound
DE69737087T DE69737087T2 (en) 1997-03-13 1997-10-01 System for improving the surround effect of stereo sound or coded sound signals
US08/944,211 US6587565B1 (en) 1997-03-13 1997-10-06 System for improving a spatial effect of stereo sound or encoded sound
HK99100838A HK1016010A1 (en) 1997-03-13 1999-03-02 A system for improving a spatial effect of stereo sound or encoded sound

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KR1019970012151A KR100239918B1 (en) 1997-03-28 1997-03-28 3 dimension stereo improving system

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KR970032267A true KR970032267A (en) 1997-06-26
KR100239918B1 KR100239918B1 (en) 2000-01-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000041065A (en) * 1998-12-21 2000-07-15 이형도 Three-dimension sound headphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000041065A (en) * 1998-12-21 2000-07-15 이형도 Three-dimension sound headphone

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