TY - GEN
T1 - A-PARM
T2 - 7th International Conference on Computational Science, ICCS 2007
AU - Lim, Sukhyun
AU - Shin, Byeong Seok
PY - 2007
Y1 - 2007
N2 - The PARM is a data structure to ensure interactive frame rates on a PC platform for CPU-based volume ray casting. After determining candidate cells that contribute to the final images, it partitions each candidate cell into several sub-cells. Then, it stores trilinearly interpolated scalar value and an index of encoded gradient vector for each sub-cell. Since the information that requires time-consuming computations is already stored in the structure, the rendering time is reduced. However, it requires huge memory space because most precomputed values are loaded in the system memory. We solve it by adaptively dividing candidate cells into different sub-cells. That is, we divide a candidate cell in which the gradient is strictly changed into a large number of sub-cells, and vice versa. By this approach, we acquire moderate images while reducing the memory size.
AB - The PARM is a data structure to ensure interactive frame rates on a PC platform for CPU-based volume ray casting. After determining candidate cells that contribute to the final images, it partitions each candidate cell into several sub-cells. Then, it stores trilinearly interpolated scalar value and an index of encoded gradient vector for each sub-cell. Since the information that requires time-consuming computations is already stored in the structure, the rendering time is reduced. However, it requires huge memory space because most precomputed values are loaded in the system memory. We solve it by adaptively dividing candidate cells into different sub-cells. That is, we divide a candidate cell in which the gradient is strictly changed into a large number of sub-cells, and vice versa. By this approach, we acquire moderate images while reducing the memory size.
UR - http://www.scopus.com/inward/record.url?scp=37249029351&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-72584-8_67
DO - 10.1007/978-3-540-72584-8_67
M3 - Conference contribution
AN - SCOPUS:37249029351
SN - 9783540725831
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 505
EP - 512
BT - Computational Science - ICCS 2007 - 7th International Conference, Proceedings, Part I
PB - Springer Verlag
Y2 - 27 May 2007 through 30 May 2007
ER -