KR930014150A

KR930014150A - Apparatus and Method for Compression / Recoding of Still Image Data

Info

Publication number: KR930014150A
Application number: KR1019910024069A
Authority: KR
Inventors: 박상규; 신현식; 정해원; 조규섭
Original assignee: 경상현; 재단법인 한국전자통신연구소
Priority date: 1991-12-23
Filing date: 1991-12-23
Publication date: 1993-07-22

Abstract

본 발명은 범용 컴퓨터에 접속되어 범용 컴퓨터의 프로세서의 제어에 의해 정지화상 데이타를 압축하고 복원할 수 있는 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and a method connected to a general purpose computer and capable of compressing and restoring still image data under the control of a processor of the general purpose computer.

따라서, 본 발명은 범용 컴퓨터의 프로세서(7), 신호처리 진용 프로세서(3), ROM(1), RAM(2), 프로세서통신 수단(5) 및 제 1및 제2데이타 버퍼 수단(4,6)으로 구성되고, 상기와 같이 구성되는 장치를 이용하여 상기 범용 컴퓨티의 프로세서(7)가 처리할 전체 데이타를 제1단계(10), 상기 범용 컴퓨터의 프로세서(7)가 처리된 데이타를 제2데이타 버퍼(6)에서 읽고 다음 데이타의 처리 명령을 상기 신호처리 전용 프로세서(3)에게 전송하고 처리한 데이타를 상기 제1데이타 버퍼(64)에 써 넣는 제2단계(20,30,40), 상기 신호처리 전용 프로세서(3)가 상기 다음데이타의 처리 명령을 수신하면 처리할 데이타를 상기 제1데이타버퍼(4)에서 읽어 압축 또는 복원처리하고 처리된 데이타를 상기 제2데이타 버퍼(6)에 써 넣고 데이타 처리 완료 통지를 보내는 제3단계(90,100,110,120,130), 상기 범용 컴퓨터의 프로세서(7)가 상기 데이타 처리완료 통지를 수신하면 마지막 데이타 처리가 완료되었는지 검색하여 완료되지 않았으면 상기 제2단계(20,30,40)로 진행하고, 완료되었으면 마지막 처리된 데이타를 상기 제2데이타 버퍼에서 읽어가는 제4단계(50,60,70,80)에 의해 수행되는 것을 특징으로 한다.Accordingly, the present invention provides a processor 7, a signal processing processor 3, a ROM 1, a RAM 2, a processor communication means 5 and first and second data buffer means 4, 6 of a general purpose computer. In the first step 10, the processor 7 of the general-purpose computer stores the processed data using the device configured as described above. 2nd step (20, 30, 40) of reading from the data buffer 6 and transmitting the next data processing instruction to the signal processing processor 3 and writing the processed data into the first data buffer 64. When the signal processing processor 3 receives the processing instruction of the next data, the data to be processed is read from the first data buffer 4 to be compressed or decompressed and the processed data is read out from the second data buffer 6. In the third step (90, 100, 110, 120, 130), and When the processor 7 of the general-purpose computer receives the data processing completion notice, it searches for the completion of the last data processing and proceeds to the second steps 20, 30, and 40 if it is not completed. And a fourth step (50, 60, 70, 80) of reading from the second data buffer.

Description

Apparatus and Method for Compression / Recoding of Still Image Data

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 의한 정지화상데이타의 압축/복원장치의 구성도.1 is a configuration diagram of a compression / restoration apparatus for still image data according to the present invention.

제2도는 제1도의 데이타 처리과정의 동작상태도.2 is an operational state diagram of the data processing process of FIG.

제3도는 제2도의 빠른 동작 과정의 동작 상태도.3 is an operational state diagram of the fast operation process of FIG.

제4도는 본 발명에 의한 정지화상데이타의 압축/복원방법의 흐름도.4 is a flowchart of a compression / restore method of still image data according to the present invention.

Claims

A compression / restoration apparatus for still image data, which is connected to a general-purpose computer and compresses and decompresses still image data under control of the processor 7 of the general-purpose computer; The signal processing processor 3 capable of processing data at high speed, the ROM 1 storing a program to be executed by the signal saving processor 3, and the signal processing processor 3 are capable of processing data. RAM (2) for temporarily storing information, processor communication means (5) for exchanging control information between the signal processing dedicated processor (3) and the processor (7) of a general purpose computer, and the signal processing dedicated processor (3); An apparatus for compressing and restoring still picture data, characterized in that it comprises first and second data buffer means (4,6) for performing data exchange with the processor (7) of a general purpose computer in parallel.

A processor 7 of a general-purpose computer, a signal processing dedicated processor 3 capable of performing data processing at high speed, a ROM 1 storing a program to be executed by the signal processing dedicated processor 3, and the signal processing dedicated processor ( RAM 2 for temporarily storing information in processing data, processor communication means 5 for exchanging control information between the signal processing dedicated processor 3 and the processor 7 of the general purpose computer, and Still image data applied to an apparatus comprising first and second data buffer means (4,6) for performing data exchange between the signal processor (3) and the general-purpose computer processor (7) in parallel. A compression / decompression method of still picture data for compressing and restoring a data; A first step (10) of dividing the entire data processed by the processor (7) of the general-purpose computer, and reading the data processed by the processor (7) of the general-purpose computer from the second data buffer (6) and processing the next data Is transmitted to the signal processing processor 3, and the second steps 20, 30 and 40 write the processed data into the first data block 64, and the signal processing processor 3 performs the next data. The third step of reading data to be processed from the first data buffer 4, compressing or restoring the data to be processed, writing the processed data into the second data buffer 6, and sending a data processing completion notice ( 90, 100, 110, 120 and 130, when the processor 7 of the general purpose computer receives the data processing completion notice, searches for the completion of the last data processing and proceeds to the second steps 20, 30 and 40 if it is not completed. Method compression / decompression of data stopped, characterized in that is carried out by the last processed data to the fourth stage (50,60,70,80) going to read from the second data buffer.

※ Note: The disclosure is based on the initial application.