KR960013059A - Binary image decoding device - Google Patents
Binary image decoding device Download PDFInfo
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- KR960013059A KR960013059A KR1019940024871A KR19940024871A KR960013059A KR 960013059 A KR960013059 A KR 960013059A KR 1019940024871 A KR1019940024871 A KR 1019940024871A KR 19940024871 A KR19940024871 A KR 19940024871A KR 960013059 A KR960013059 A KR 960013059A
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- KR
- South Korea
- Prior art keywords
- binary image
- unit
- probability
- false alarm
- image decoding
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- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
본 발명은 이진 영상의 양자화 과정에 의해 발생되는 양자화 잡음을 최소화하여 해상도를 높일 수 있는 이진 영상 복호화 장치에 관한 것으로, 양자화된 이진 영상 데이타를 역 양자화하여 원래의 데이타 값으로 크기를 변환하는 역 양자화부, 인코더 측에서 압축을 위해 사용된 DCT 변환에 대한 역변환을 수행하는 IDCT부, 상기 IDCT부(14)에서 출력되는 이진 영상 신호의 확률 분포 곡선을 이용하여 기 설정된 오경보 확률내에서 미스를 최소화하는 기준치에 의해 이진 영상을 판정하는 판정부, 복호화된 이진 영상을 2차원 저역 필터링하는 후처리부(15)를 구비하여 구성함을 특징으로 한다.The present invention relates to a binary image decoding apparatus capable of increasing the resolution by minimizing the quantization noise generated by the quantization process of a binary image. The IDCT unit performs an inverse transform on the DCT transform used for compression at the encoder side, and minimizes a miss within a preset false alarm probability by using a probability distribution curve of a binary image signal output from the IDCT unit 14. And a determination unit for determining a binary image based on a reference value, and a post-processing unit 15 for two-dimensional low pass filtering of the decoded binary image.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명의 실시예를 나타내는 블럭 구성도.2 is a block diagram showing an embodiment of the present invention.
제3도는 본 발명의 실시예에 적용되는 확률 분포 곡선도.3 is a probability distribution curve diagram applied to an embodiment of the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940024871A KR960013059A (en) | 1994-09-30 | 1994-09-30 | Binary image decoding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940024871A KR960013059A (en) | 1994-09-30 | 1994-09-30 | Binary image decoding device |
Publications (1)
Publication Number | Publication Date |
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KR960013059A true KR960013059A (en) | 1996-04-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019940024871A KR960013059A (en) | 1994-09-30 | 1994-09-30 | Binary image decoding device |
Country Status (1)
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KR (1) | KR960013059A (en) |
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1994
- 1994-09-30 KR KR1019940024871A patent/KR960013059A/en not_active Application Discontinuation
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