Title :
A JPEG codec reflecting human sense
Author :
Ohta, Koji ; Zhao, Jiying ; Shimazu, Yoshihisa ; Hayasaka, Rina ; Matsushita, Yutaka
Author_Institution :
Dept. of Instrum. Eng., Keio Univ., Yokohama, Japan
Abstract :
This paper presents a novel standard baseline JPEG compatible still image compression method that allows to flexibly control the decompression duality of regions in the image. Therefore, it allows both higher quality of important parts and lower bitrate as a whole, and it reflects the sense of human beings. We use the fuzzy technique to determine the important regions in the same manner as human beings do, allocate a higher bitrate to important regions and a lower bitrate to the rest of image. The paper mainly introduces an importance adaptive image codec, and finally gives experimental results
Keywords :
adaptive signal processing; codecs; data compression; fuzzy set theory; image coding; image segmentation; telecommunication standards; JPEG codec; bitrate; decompression duality; fuzzy technique; human sense; importance adaptive image codec; important regions; standard baseline JPEG compatible still image compression method; Bit rate; Codecs; Decoding; Discrete cosine transforms; Humans; Image coding; Image quality; Image segmentation; Quantization; Transform coding;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.566260