Sökning: "Tone Mapping"

Visar resultat 11 - 15 av 15 uppsatser innehållade orden Tone Mapping.

1. 11. PERFORMANCE ENHANCEMENT OF OFDM IN PAPR REDUCTION USING NEW COMPANDING TRANSFORM AND ADAPTIVE AC EXTENSION ALGORITHM FOR NEXT GENERATION NETWORKSPERFORMANCE ENHANCEMENT OF OFDM IN PAPR REDUCTION USING NEW COMPANDING TRANSFORM AND ADAPTIVE AC EXTENSION ALGORITHM FOR NEXT GENERATION NETWORKS

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :CLEMENT RANJITH ANTHIKKAD & IRFAN AHMED BAIG; [2013]
   Nyckelord :Orthogonal Frequency Division Multiplexing OFDM ; Peak-to-Average Power Ratio PAPR ; Complementary Cumulative Distribution Function CCDF ; Partial Transmit Sequence PTS ; Tone Reservation TR .;

   Sammanfattning : This paper presents a new hybrid PAPR reduction technique for the OFDM signal, which combines a multiple symbol representations method with a signal clipping method. The clipping method is a nonlinear PAPR reduction scheme, where the amplitude of the signal is limited to a given threshold. LÄS MER

3. 12. Further development of shaders for realistic materials and global illumination effects

   Master-uppsats, Medie- och Informationsteknik; Tekniska högskolan

   Författare :Jun Guo; [2012]
   Nyckelord :GLSL; HLSL; Real-time Rendering; Realistic Material; Global Illumination; Screen Space Ambient Occlusion; Image Based Light; Cube Map Convolution; Tone Mapping;

   Sammanfattning : Shader programming is important for realistic material and global illumination real-time rendering, especially in 3D industrial fields nowadays, more and more customers of Visual Components Oy, a Finnish 3D software company have been found to be no longer only content with the correct simulation result, but also the result of realistic real-time rendering. This thesis project will provide a deep research on real world material classification, property definition and global illumination techniques in industrial fields. LÄS MER

4. 13. Advanced Real-time Post-Processing using GPGPU techniques

   Master-uppsats, Institutionen för teknik och naturvetenskap

   Författare :Per Lönroth; Mattias Unger; [2008]
   Nyckelord :Computer graphics; Post processing; GPGPU; Depth of Field; CUDA;

   Sammanfattning :   Post-processing techniques are used to change a rendered image as a last step before presentation and include, but is not limited to, operations such as change of saturation or contrast, and also more advanced effects like depth-of-field and tone mapping. Depth-of-field effects are created by changing the focus in an image; the parts close to the focus point are perfectly sharp while the rest of the image has a variable amount of blurriness. LÄS MER

5. 14. Evaluation of tone mapping operators for use in real time environments

   Magister-uppsats, Institutionen för teknik och naturvetenskap

   Författare :Jonas Hellsten; [2007]
   Nyckelord :tone mapping; real time graphics; perception; scotopic vision;

   Sammanfattning : As real time visualizations become more realistic it also becomes more important to simulate the perceptual effects of the human visual system. Such effects include the response to varying illumination, glare and differences between photopic and scotopic vision. LÄS MER

7. 15. Integrating HDR with a Real-Time Graphics Engine

   Master-uppsats, Institutionen för teknik och naturvetenskap; Tekniska högskolan

   Författare :Lina Levén; [2006]
   Nyckelord :;

   Sammanfattning : This report covers the work on integrating HDR rendering in the existing Digital Arts graphics engine and in this case the HDR rendering will come to use mainly in architectural visualization. The basics of the HDR concept is covered and the use of HDR in real-time applications is motivated and the pros and cons of different image formats are considered. LÄS MER