Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2007002203) REUSING INTERPOLATED VALUES IN ADVANCED VIDEO ENCODERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/002203 International Application No.: PCT/US2006/024156
Publication Date: 04.01.2007 International Filing Date: 20.06.2006
IPC:
H04B 1/66 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
66
for reducing bandwidth of signals; for improving efficiency of transmission
Applicants:
FLEXTRONICS INTERNATIONAL USA, INC. [US/US]; 2090 Fortune Drive San Jose, CA 95131, US (AllExceptUS)
GUPTA, Pallapothu, S.S.B.K. [IN/IN]; IN (UsOnly)
SUMAN, Kopparapu [IN/IN]; IN (UsOnly)
SRIKANTHARAO, Raghu, Tippuru [IN/IN]; IN (UsOnly)
RAMKISHOR, Korada [IN/IN]; IN (UsOnly)
Inventors:
GUPTA, Pallapothu, S.S.B.K.; IN
SUMAN, Kopparapu; IN
SRIKANTHARAO, Raghu, Tippuru; IN
RAMKISHOR, Korada; IN
Agent:
KREBS, Robert, E. ; Thelen Reid & Priest LLP P.O.Box 640640 San Jose, CA 95164-0640, US
Priority Data:
11/157,31920.06.2005US
Title (EN) REUSING INTERPOLATED VALUES IN ADVANCED VIDEO ENCODERS
(FR) REUTILISATION DE VALEURS INTERPOLEES DANS DES DECODEURS VIDEO PERFECTIONNES
Abstract:
(EN) The fact that fractional-pixel points that are searched are close to each other, and hence the half-pixel and quarter-pixel interpolation of each point involves computing interpolations that have already been computed, may be exploited. This is accomplished by storing the interpolated values of the first point and reusing them when computing the interpolations for the other points. This may be performed for both horizontal and vertical interpolations. For interpolation in both the horizontal and vertical directions, the horizontal interpolated values may be reused, and vertical interpolation carried out over them, or vice-versa. For computing the quarter-pixel interpolated values, the half-pixel interpolated values computed and stored previously may be used.
(FR) La proximité des pixels fractionnaires recherchés, et par conséquent l'interpolation au demi-pixel et au quart de pixel de chaque pixel impliquant le calcul des interpolations déjà calculées, peut être exploitée. Pour ce faire, les valeurs interpolées du premier pixel sont stockées et réutilisées pour le calcul des interpolations des autres pixels. Ceci peut être appliqué aussi bien pour l'interpolation horizontale que verticale. Pour l'interpolation à la fois dans les directions horizontale et verticale, les valeurs interpolées horizontales peuvent être réutilisées, l'interpolation verticale étant alors appliquée par-dessus, et inversement. Pour calculer les valeurs interpolées des quarts de pixel, les valeurs interpolées de demi-pixel précédemment calculées et stockées peuvent être utilisées.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, 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, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1897379JP2008547323