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JEG-Hybrid

JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

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Page 1: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

JEG-Hybrid

Page 2: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

JEG Full database

AGH database with additional packet loss HRCs

AGH database of coding conditions

JEG264HMIX1

Page 3: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

Database available

• Subjective database– PVSs– HMIX1 & HMIX 2– PCAP– Subjective MOS + individual ratings– Objective MOS (Inigo)

Page 4: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

Software tools

• VirtualBox image– Encoders • jm, x264

– Decoders • jm, ffmpeg

– Packet loss generation• Sirannon

– Analysis• H264AnnexBExtraction• JM• Inigo objective model

Page 5: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

Limiting storage & transmission space

• Storage of PVSs– Lossless encoding (ffmpeg/x264)– MD5 sums for decoded files

• HMIX (XML) files– Bzip2

• PCAP, uncompressed

all part of the Virtualbox toolchain

Page 6: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

SRC Selection

• SRCs– VQEG HDTV sequences– University of Vienna• Gaming/user generated

– Animated• Sita Sings The Blues• Elephants Dream• Big Buck Bunny

Selection of SRCs?

Page 7: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

HRC Generation

• Encoding– List of parameters implemented at AGH

• Packet loss (who?)– Generate (realistic) scenarios– Obtain/apply packet traces– Decoding with different decoders• Error concealment• Delay handling

Page 8: JEG-Hybrid. JEG Full database AGH database with additional packet loss HRCs AGH database of coding conditions JEG264HMIX1

Evaluation

• Objective– Run FR models on our database (JEG264HMIX1)• List of available models (who?)• Statistical analysis

• Subjective– Selection of sequences for subjective evaluation