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1. (WO2010074068) REVERSE QUANTIZATION METHOD, REVERSE QUANTIZATION DEVICE, AND PROGRAM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/074068 International Application No.: PCT/JP2009/071303
Publication Date: 01.07.2010 International Filing Date: 22.12.2009
IPC:
H04N 7/26 (2006.01) ,H03M 7/30 (2006.01) ,H04N 1/41 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
24
Systems for the transmission of television signals using pulse code modulation
26
using bandwidth reduction
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
7
Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits
30
Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
41
Bandwidth or redundancy reduction
Applicants:
日本電気株式会社 NEC Corporation [JP/JP]; 東京都港区芝五丁目7番1号 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP (AllExceptUS)
蝶野 慶一 CHONO Keiichi [JP/JP]; JP (UsOnly)
Inventors:
蝶野 慶一 CHONO Keiichi; JP
Agent:
宇高 克己 UDAKA Katsuki; 東京都千代田区神田佐久間町1-14第二東ビル5階 No2, Azuma Bldg. 5fl, 14, Kandasakumacho 1-chome, Chiyoda-ku, Tokyo 1010025, JP
Priority Data:
2008-33200926.12.2008JP
Title (EN) REVERSE QUANTIZATION METHOD, REVERSE QUANTIZATION DEVICE, AND PROGRAM
(FR) PROCÉDÉ DE QUANTIFICATION INVERSE, DISPOSITIF DE QUANTIFICATION INVERSE ET PROGRAMME
(JA) 逆量子化方法、逆量子化装置及びプログラム
Abstract:
(EN) Disclosed is a reverse quantization method that reverse-quantizes multiple quantized values as a set, obtaining a set of multiple reverse-quantized values, said method being characterized in that the range of potential reverse-quantized values for each quantized value is obtained using at least a signal other than that of the aforementioned quantized value, and in that the set of preliminary reverse-quantized values for which the total variation norm is the minimum within the range of potential values for each reverse-quantized value is obtained as the aforementioned set of reverse-quantized values.
(FR) L'invention concerne un procédé de quantification inverse qui permet de quantifier inversement de multiples valeurs quantifiées sous forme d'un ensemble, obtenant un ensemble de multiples valeurs quantifiées inversement. Le procédé est caractérisé en ce que la plage de valeurs quantifiées inversement potentielles pour chaque valeur quantifiée est obtenue en utilisant au moins un signal différent de celui de la valeur quantifiée susmentionnée, et en ce que l'ensemble de valeurs quantifiées inversement préliminaires, pour lequel la norme de variation totale est le minimum dans la plage de valeurs potentielles pour chaque valeur quantifiée inversement, est obtenu de la même manière que l'ensemble susmentionné de valeurs quantifiées inversement.
(JA) 本発明は、複数の量子化値を組として逆量子化して複数の逆量子化値の組を求める逆量子化方法であって、量子化値毎に逆量子化値の取り得る値の範囲を少なくとも前記量子化値以外の信号を用いて求め、逆量子化値毎の取り得る値の範囲内で、全変分ノルムが最小となる仮逆量子化値の組を前記逆量子化値の組として求めることを特徴とする逆量子化方法である。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP2381684JPWO2010074068US20110268184CN102265616