RT Journal Article T1 Multiresolution rendering based on GPGPU computing A1 Lamas Rodríguez, Julián A1 Argüello Pedreira, Francisco A1 Blanco Heras, Dora K1 Compressed volume rendering K1 Texture mapping K1 Multiresolution rendering K1 Wavelet transform K1 Quantization K1 CUDA K1 OpenGL AB The problem of visualizing large volumetric datasets is appealing for computation on the GPU. Nevertheless, the design of GPU volume rendering solutions must deal with the limited available memory in a graphics card. In this work, we present a system for multiresolution volume rendering which preprocesses the dataset dividing it into bricks and generating a compressed version by applying different levels of compression based on wavelets. The compressed volume is then stored in the GPU memory. For the later visualization process by texture mapping each brick of the volume is decompressed and rendered with a different resolution level depending on its distance to the camera. This approach computes most of the tasks in the GPU, thus minimizing the data transfers among CPU and GPU. We obtain competitive results for volumes of size in the range between 64 and 256 PB Research Institute of Intelligent Computer Systems SN 1727-6209 YR 2013 FD 2013 LK http://hdl.handle.net/10347/17718 UL http://hdl.handle.net/10347/17718 LA eng NO Lamas-Rodríguez, J., Argüello, F., & Heras, D. (2014). MULTIRESOLUTION RENDERING BASED ON GPGPU COMPUTING. International Journal of Computing, 12(4), 298-307. Retrieved from http://computingonline.net/computing/article/view/609 NO This work was supported in part by the Ministry of Science and Innovation, Government of Spain, and FEDER funds under contract TIN 2010-17541, and by the Xunta de Galicia under contracts 08TIC001206PR and 2010/28. Julián Lamas Rodríguez acknowledges financial support from the Ministry of Science and Innovation, Government of Spain, under a MICINN-FPI grant DS Minerva RD 24 abr 2026