전자공학회논문지B (Journal of the Korean Institute of Telematics and Electronics B)
- 제31B권3호
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- Pages.69-79
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- 1994
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- 1016-135X(pISSN)
비순차적 비트 정렬에 의한 점진적인 DCT 영상 부호화
A Progressive DCT Image Coding by Non-sequential Bit Ordering
초록
DCT image coding has been well known for its compression efficiency. Its nature makes it also suitable for efficient progressive transmission and reconstruction since low frequency transform coefficients contain most of the energy of image signals. In this paper, we propose a progressive transmission technique of DCT image by non-sequential bit ordering using Lloyd-Max quantizer. And then, we will show that the Lloyd-Max quantizer can be embedded quantization. In simulation results, the proposed method show better subjective picture and MSE of the reconstructed image than the conventional zig-zag scanning transmission of transform coefficients.
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