Title :
Progressive Transmission Of Pointtexture 3-D Images
Author :
Song, In-Wook ; Lee, Sang-Uk ; Kim, Chang-Su
Abstract :
A progressive compression and transmission algorithm for PointTexture 3-D images is proposed in this work. The proposed algorithm represents a PointTexture image hierarchically using an octree. The geometry information in octree nodes is encoded by the predictive partial matching (PPM) method, while the color information is encoded using the discrete cosine transform (DCT). The encoder achieves the progressive transmission of the 3-D image by transmitting the octree nodes in a top-down manner. We develop a transmission scheme, based on the rate-distortion (R-D) optimization in order to maximize the image quality subject to a given bit budget. Extensive simulation results demonstrate that the proposed algorithm is an efficient method for progressive transmission of 3-D data
Keywords :
data compression; discrete cosine transforms; image coding; image colour analysis; image matching; image representation; image resolution; octrees; optimisation; visual communication; PointTexture 3D images; color information; discrete cosine transform; image quality; octree nodes; predictive partial matching method; progressive compression; progressive transmission; rate-distortion optimization; Animation; Discrete cosine transforms; Image coding; Image quality; Information geometry; MPEG 4 Standard; Pixel; Rate-distortion; Rendering (computer graphics); Signal processing algorithms;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660385
