Motion-JPEG2000 codec compensated for interlaced scanning videos.
IEEE Trans Image Process
; 14(12): 2179-91, 2005 Dec.
Article
en En
| MEDLINE
| ID: mdl-16370470
ABSTRACT
This paper presents an implementation scheme of Motion-JPEG2000 (MJP2) integrated with invertible deinterlacing. In previous work, we developed an invertible deinterlacing technique that suppresses the comb-tooth artifacts which are caused by field interleaving for interlaced scanning videos, and affect the quality of scalable frame-based codecs, such as MJP2. Our technique has two features, where sampling density is preserved and image quality is recovered by an inverse process. When no codec is placed between the deinterlacer and inverse process, the original video is perfectly reconstructed. Otherwise, it is almost completely recovered. We suggest an application scenario of this invertible deinterlacer for enhancing the sophisticated signal-to-noise ratio scalability in the frame-based MJP2 coding. The proposed system suppresses the comb-tooth artifacts at low bitrates, while enabling the quality recovery through its inverse process at high bitrates within the standard bitstream format. The main purpose of this paper is to present a system that yields high quality recovery for an MJP2 codec. We demonstrate that our invertible deinterlacer can be embedded into the discrete.wavelet transform employed in MJP2. As a result, the energy gain factor to control rate-distortion characteristics can be compensated for optimal compression. Simulation results show that the recovery of quality is improved by, for example, more than 2.0 dB in peak signal-to-noise ratio by applying our proposed gain compensation when decoding 8-bit grayscale Football sequence at 2.0 bpp.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Grabación en Video
/
Algoritmos
/
Gráficos por Computador
/
Procesamiento de Señales Asistido por Computador
/
Interpretación de Imagen Asistida por Computador
/
Aumento de la Imagen
/
Compresión de Datos
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
IEEE Trans Image Process
Asunto de la revista:
INFORMATICA MEDICA
Año:
2005
Tipo del documento:
Article
País de afiliación:
Japón