(19)
(11) EP 1 768 059 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
20.06.2007 Bulletin 2007/25

(43) Date of publication:
28.03.2007 Bulletin 2007/13

(21) Application number: 06126695.3

(22) Date of filing: 02.06.2003
(51) International Patent Classification (IPC): 
G06T 1/60(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

(30) Priority: 07.06.2002 US 387049 P
20.12.2002 US 326849

(62) Application number of the earlier application in accordance with Art. 76 EPC:
03737982.3 / 1520259

(71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
164 83 Stockholm (SE)

(72) Inventors:
  • Akenine-Möller, Tomas
    227 38 Lund (SE)
  • Ström, Jacob
    117 32 Malmö (SE)

(74) Representative: Asketorp, Göran 
Ström & Gulliksson AB P O Box 793
220 07 Lund
220 07 Lund (SE)

 
Remarks:
This application was filed on 20 - 12 - 2006 as a divisional application to the application mentioned under INID code 62.
 


(54) Method and apparatus for encoding texture information


(57) A pixel is textured by storing a first texel reference value, a second texel reference value, and a texel value operative to map a texel to a 3-tuple of the first texel reference value, the second texel reference value and a third texel reference value to thereby represent a block of texels. A pixel value for the pixel is generated from the stored texel values and the pixel is displayed responsive to the generated pixel value. In some embodiments, respective pluralities of texel reference values and texel values that map thereto are stored for respective ones of a plurality of overlapping blocks of texels. In further embodiments, a first mipmap value for a pixel is bilinearly interpolated from the retrieved texel values for the set of nearest neighbor texels. A second mipmap value for the pixel is generated by averaging the retrieved texel values for the set of nearest neighbor texels. A pixel value for the pixel is generated by interpolating between the first and second mipmap values. The present inventin may be embodied as methods, apparatus and computer program products.