Benchmarking image codecs by assessment of coded test images: the development of test images and new objective quality metrics

• Autorzy: Punchihewa A. , Bailey D. G. , Hodgson R. M.
• Języki publikacji: EN

Abstrakty

EN

Objective quality measures are required for benchmarking codec performance. Our aim was to develop a simple, accurate method capable of rapidly measuring the degree of blockiness, edge-blur and ringing due to image compression. Two test images were designed to emphasise these artefacts. The efficacy of the new metrics is demonstrated using a JPEG codec at a range of compression levels.

Słowa kluczowe

EN

image quality; artefacts; subjective; objective; coding; metric; blockiness; blur; ringing

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2006
• Tom: nr 1
• Strony: 11--16
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Punchihewa A.

autor

Bailey D. G.

autor

Hodgson R. M.

• Institute of Information Sciences and Technology, Massey University, Private Bag 11222, Palmerston North, New Zealand,

Bibliografia

• [1] B. Pank, The Digital Fact Book. Berkshire: Quantel Limited, 2002.
• [2] A. Punchihewa and D. G. Bailey, “Artefacts in image and video sys-tems; classification and mitigation”, in Proc. Im. Vis. Comput., Auck-land, New Zealand, 2002, pp. 197–202.
• [3] A. Punchihewa, D. G. Bailey, and R. M. Hodgson, “A survey of coded image and video quality assessment”, in Proc. Im. Vis. Comput., Palmerston North, New Zealand, 2003, pp. 326–331.
• [4] D. G. Bailey, M. Carli, M. Farias, and S. K. Mitra, “Quality assessment for block-based compressed images and videos with regard to blockiness artefacts”, in Tyrrhenian Int. Worksh. Dig. Commun., Capri, Italy, 2002, pp. 237–241.
• [5] M. Kusuma and H. Zepernick, “A reduced-reference perceptual quality metric for in-service image quality assessment”, in Proc. Internet, Telecommun. Sig. Proces. WITSP, Conf. & Worksh., Coolangatta, Australia, 2003, pp. 72–76.
• [6] K. Varma and A. Bell, “JPEG 2000-choices and tradeoffs for encoders”, IEEE Sig. Proces. Mag., pp. 70–75, Nov. 2004.