비디오 준무손실 압축을 위한 효율적인 레이트 컨트롤 알고리즘
Efficient rate control algorithm for video near-lossless compression
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초록
n this paper, we propose efficient rate control algorithm for video near-lossless compression. The proposed method adjusts pixel error range using amounts of previous encoded bits and target bits at a slice encoding interval. Thus, encoded bits by the proposed method are transmitted well through limited bandwidth without overflow. Also, target bits and encoded bits can be controlled according to transmission policy. Experimental results show that our proposed method not only almost fits compression ratio, but also has better image quality.
Abstract
n this paper, we propose efficient rate control algorithm for video near-lossless compression. The proposed method adjusts pixel error range using amounts of previous encoded bits and target bits at a slice encoding interval. Thus, encoded bits by the proposed method are transmitted well through limited bandwidth without overflow. Also, target bits and encoded bits can be controlled according to transmission policy. Experimental results show that our proposed method not only almost fits compression ratio, but also has better image quality.
참고문헌 (14)
- X. Wu, "Context-based, adaptive, lossless image coding", IEEE Trans. Communications, 45(4), pp.437~444 (1997)
- X. Wu, "Efficient lossless compression of continuous-tone images via context selection and quantization", IEEE Trans. Image Processing, 6, pp.656~664 (1997)
- X. Wu, "Context-based lossless interband compression-extending CALIC", IEEE Trans. Image Processing, 9(6), pp.994~1001 (2000)
- E. Magli, "Optimized onboard lossless and near-lossless compression of hyperspectral data using CALIC", IEEE Geoscience and Remote Sensing Letters, 1(1), pp.21~25 (2004)
- W. Ding, "Adaptive directional lifting-based wavelet transform for image coding", IEEE Trans. on Image Processing, 16(2) (2007)
- M. J. Weinberger, "Application of universal context modeling to lossless compression of gray-scale images", IEEE Trans. Image Processing, 5, pp.576~586 (1996)
- M. J. Weinberger, "Sequential prediction and ranking in universal context modeling and data compression", IEEE Trans. Inform. Theory, 43, pp.1697~1706 (1997)
- M. J. Weinberger, "The LOCO-I lossless image compression algorithm: principles and standardization into JPEG-LS", IEEE Trans. Image Processing, 9(8), pp.1309~1324 (2000)
- X. Li, "Edge-directed prediction for lossless compression of natural images", IEEE Trans. Image Processing, 10(6), pp.813~817 (2001)
- S. W. Golomb, "Run-length encodings", IEEE Trans. Inform. Theory, IT-12, pp.399~401 (1996)
- P. G. Howard, "Fast and efficient lossless image compression", Proc. 1993 Data Compression Conf.,, pp.351~360 (1993)
- N. D. Memon, "Lossless compression of video sequences", IEEE Trans. Communications, 44(10), pp.1340~1345 (1996)
- E. S. G. Carotti, "Motion-compensated lossless video coding in the CALIC framework", Proceedings of the 5th IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), pp.600~605 (2005)
- S. J. Lee, "Method and apparatus for visually lossless image data compression", Samsung Electronics, ~, 10-2008-0049535