A quantization method for haptic data lossy compression

Author

Nakano, Tomohiro ; Uozumi, Seiji ; Johansson, Rolf ; Ohnishi, Kouhei

Author_Institution

Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan

fYear

2015

fDate

6-8 March 2015

Firstpage

126

Lastpage

131

Abstract

In this paper, a quantization scheme for haptic data compression is proposed and the results of its application to a motion copying system are described. The data compression of image and audio data has been researched a lot. However, the data compression of haptic data has not been much researched yet although the amount of haptic data is large in general. The discrete cosine transform (DCT) is used for the lossy compression of haptic data in this paper. A new quantization scheme using characteristics of DCT is proposed. By using a proposed method, a larger signal-to-noise ratio compared to conventional method is achieved. In the experiment, the validity of the proposed method was verified.

Keywords

data compression; discrete cosine transforms; image coding; image motion analysis; DCT; audio compression; discrete cosine transform; haptic data lossy compression; image compression; motion copying system; quantization method; signal-to-noise ratio; Data compression; Discrete cosine transforms; Force; Haptic interfaces; Predictive coding; Quantization (signal); Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics (ICM), 2015 IEEE International Conference on

Conference_Location

Nagoya

Type

conf

DOI

10.1109/ICMECH.2015.7083960

Filename

7083960