CENTER:&color(navy){&size(24){''Image compression suitable for multiple ROIs''};};
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**Abstract [#y118565b]
-A region of interest (ROI) is a selected region within an image identified for a particular purpose (e.g. tracking, viewing high quality). Image codecs has to decode ROIs in a lower bit rate preferentially. JPEG2000 has a function for ROI decoding, but the coding performance degrades if the number of ROIs is increased. We develop a new algorithm for multiple ROIs based on the JPEG2000 algorithm.
-A region of interest (ROI) is a selected region within an image identified for a particular purpose (e.g. tracking, viewing high quality). Image codecs has to decode ROIs preferentially in a lower bit rate. JPEG2000 has a function for ROI decoding, but the coding performance degrades if the number of ROIs is increased. We develop a new algorithm for multiple ROIs based on the JPEG2000 algorithm.
#ref(Boat.png,nolink)
**Basic study of ROI coding by using Set partitioning embeddeded block (SPECK) [#l0cf206e]
-We improve the ROI coding performance by modifying wavelet transform on the ROI boundary and removing unnecessary non-ROI bits.
-We improve the ROI coding performance by modifying the wavelet transform on the ROI boundary and removing unnecessary non-ROI bits.
--Kazuma Shinoda, Naoki Kobayashi, Ayako Katoh, Hideki Komagata, Masahiro Ishikawa, Yuri Murakami, Masahiro Yamaguchi, Tokiya Abe, Akinori Hashiguchi, and Michiie Sakamoto,
"An efficient wavelet-based ROI coding for multiple regions,"
IEICE Trans. on Fundamentals, Vol. E98-A, No. 4, pp. 1006-1020, Apr. 2015.
