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A Lifting Implementation of Variable-Coefficient Invertible Deinterlacer with Embedded Motion Detector
A Lifting Implementation of Variable-Coefficient Invertible Deinterlacer with Embedded Motion Detector
Ishida, Takuma
6009
Soyama, Tatsuumi
6010
Muramatsu, Shogo
6011
Kikuchi, Hisakazu
6012
Kuge, Tetsuro
6013
invertible deinterlacing
variable-coefficient filtering
motion-JPEG2000
lifting implementation
In this paper, a lifting implementation of variable-coefficient invertible deinterlacer with embedded motion detector is proposed. As previous works, the authors have developed invertible deinterlacing that suppresses comb-tooth artifacts caused by field interleaving for interlaced scanning video, which affect the quality of intraframe-based codec such as Motion-JPEG2000. To improve the local adaptability for given pictures, its variable-coefficient processing with motion detection has also been proposed so that filters can be changed according to local properties of motion pictures, while maintaining the invertibility. In this paper, it is shown that the variable-coefficient invertible deinterlacing can be realized by a lifting-based simple hardware architecture, and motion detector can also be embedded. Both of the motion detection and deinterlacing filters are shared by a special choice of their coefficients, and by adaptive selection of deinterlacing filters. The significance of our proposed architecture is verified by showing synthesis results from the VHDL models. The proposed implementation with embedded motion detector achieves about 28% reduction of the gate count compared with the corresponding separate implementation.
journal article
The Institute of Electronics, Information and Communication Engineers
2003-08
application/pdf
IEICE transactions on fundamentals of electronics, communications and computer sciences
8
E86-A
1942
1948
IEICE transactions on fundamentals of electronics, communications and computer sciences
AA10826239
09168508
https://niigata-u.repo.nii.ac.jp/record/1877/files/e86-a_8_1942.pdf
eng
http://www.ieice.org/jpn/trans_online/
copyright©2003 IEICE