KR950006836A - Digital video compression signal editing device - Google Patents

Digital video compression signal editing device Download PDF

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Publication number
KR950006836A
KR950006836A KR1019930015290A KR930015290A KR950006836A KR 950006836 A KR950006836 A KR 950006836A KR 1019930015290 A KR1019930015290 A KR 1019930015290A KR 930015290 A KR930015290 A KR 930015290A KR 950006836 A KR950006836 A KR 950006836A
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KR
South Korea
Prior art keywords
image
buffer
video
editing
compressed
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KR1019930015290A
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Korean (ko)
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KR100279582B1 (en
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임채열
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이헌조
주식회사 금성사
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Priority to KR1019930015290A priority Critical patent/KR100279582B1/en
Publication of KR950006836A publication Critical patent/KR950006836A/en
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Abstract

본 발명은 영상압축된 디지탈 신호를 편집할 때 복호화기의 입력버퍼상태 제어에 관한 것으로, 일반적으로 사용되고 있는 영상편집방법은 프로그램을 제작하는데 있어서 영상압축된 비트 스트림을 임의의 위치에서 자른 뒤 다른 프로그램을 계속하여 편집하는 경우 각 픽쳐들의 관계가 흐트러져 편집된 영상이 제대로 복원되지 못하게 된다.The present invention relates to the control of the input buffer state of a decoder when editing a video compressed digital signal. In general, a video editing method is used to cut a video compressed bit stream at an arbitrary position and then create another program. When editing is continued, the relationship between each picture is disturbed and the edited image cannot be restored properly.

그리고, 영상압축된 다수의 프로그램들을 편집할 경우에는 복호화기의 버퍼상태를 고려하지 않게 되므로 복호화기의 버퍼가 오버플로우 또는 언더플로우되는 문제점이 있게 된다.When editing a plurality of compressed video programs, the decoder's buffer state is not taken into account, which causes the decoder's buffer to overflow or underflow.

이에 따라, 본 발명의 목적은 상기와 같은 종래의 압축영상 편집방법에 따르는 문제점을 해결하기 위하여, 압축된 디지탈 오디오 및 비데오 신호들을 받아서 사용자의 요구대로 내용을 편집하는데 있어서, 수신단에서의 버퍼상태에 영향을 끼치지 않고 신호를 편집할 수 있도록 하는 디지탈 영상압축신호의 편집장치를 제공하는데 있다.Accordingly, an object of the present invention is to receive the compressed digital audio and video signals and to edit the contents as required by the user in order to solve the problems according to the conventional compressed image editing method as described above. An object of the present invention is to provide an apparatus for editing a digital video compressed signal that can edit a signal without affecting it.

Description

디지탈 영상압축신호의 편집장치Digital video compression signal editing device

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

제1도는 영상 압축 신호의 구성도,1 is a configuration diagram of a video compression signal;

제3도는 본 발명 디지탈 영상압축신호의 편집장치의 구성도.3 is a configuration diagram of an apparatus for editing a digital video compression signal of the present invention.

Claims (2)

입력영상에서 그룹영상의 시작점을 검출하는 그룹영상 검출부(51)와, 입력되는 영상을 수신하는 입력버퍼의 상태를 검출하는 버퍼상태 검출부(54)와, 영상의 시작코드를 검출하는 영상시작코드 검출부(55)와, 화면의 화소값에는 전혀 영향을 미치지 못한 공백처리용 데이타를 발생시키는 스터핑 비트 발생기(30)와, 각 입력영상을 편집하기 위하여 입력 영상 데이타를 선별적으로 출력하는 멀티플렉서(20)와, 현재의 화면을 이전화면으로 대치하라는 데이타를 발생시키는 비코드화 영상비트 발생기(40)와, 각 영상을 입력하는 버퍼블록(BF1~BFn)으로부터 그룹영상과 영상의 시작 및 버퍼의 상태에 따른 검출신호를 입력받아 각 버퍼블록(BF1~BFn)을 제어하는 버퍼 제어부(10)로 구성된 것을 특징으로 하는 디지탈 영상신압축신호의 편집장치.A group image detector 51 for detecting a start point of a group image in an input image, a buffer state detector 54 for detecting a state of an input buffer for receiving an input image, and an image start code detector for detecting a start code of an image 55, a stuffing bit generator 30 for generating blank processing data having no influence on the pixel value of the screen, and a multiplexer 20 for selectively outputting input image data for editing each input image. And a non-coded video bit generator 40 for generating data for replacing the current screen with the previous screen, and the start of the group video, the video from the buffer blocks BF1 to BFn for inputting each video, and the state of the buffer. And a buffer controller (10) for receiving the detection signals and controlling the respective buffer blocks (BF1 to BFn). 제1항에 있어서, 스터핑 비트 발생기(30)는 편집영상의 전환시, 이전 영상버퍼와 새로운 영상버퍼의 적재 데이타의 차에 해당되는 양만큼 스터핑 비트를 발생시키는 것을 특징으로 하는 디지탈 영상압축신호의 편집장치.The digital image compression signal as claimed in claim 1, wherein the stuffing bit generator 30 generates stuffing bits corresponding to a difference between the loading data of the old image buffer and the new image buffer when the edited image is switched. Editing device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930015290A 1993-08-06 1993-08-06 Digital video compression signal editing device KR100279582B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930015290A KR100279582B1 (en) 1993-08-06 1993-08-06 Digital video compression signal editing device

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Application Number Priority Date Filing Date Title
KR1019930015290A KR100279582B1 (en) 1993-08-06 1993-08-06 Digital video compression signal editing device

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KR950006836A true KR950006836A (en) 1995-03-21
KR100279582B1 KR100279582B1 (en) 2001-02-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100563183B1 (en) * 1997-04-04 2006-07-25 소니 가부시끼 가이샤 Picture editing apparatus and picture editing method
KR100607382B1 (en) * 1998-01-19 2006-08-02 소니 가부시끼 가이샤 Compressed picture data editing apparatus and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3589372B2 (en) * 1996-06-07 2004-11-17 ソニー株式会社 Data multiplexing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100563183B1 (en) * 1997-04-04 2006-07-25 소니 가부시끼 가이샤 Picture editing apparatus and picture editing method
KR100607382B1 (en) * 1998-01-19 2006-08-02 소니 가부시끼 가이샤 Compressed picture data editing apparatus and method

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