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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
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Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
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Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.
Sur d’autres sites (9472)
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Revision faff6ed0fb : Skip duplicate block encoding in the rd loop This speed feature allows the enco
9 juillet 2013, par Jingning HanChanged Paths :
Modify /vp9/encoder/vp9_block.h
Modify /vp9/encoder/vp9_encodeframe.c
Modify /vp9/encoder/vp9_encodeintra.c
Modify /vp9/encoder/vp9_encodemb.c
Modify /vp9/encoder/vp9_onyx_if.c
Modify /vp9/encoder/vp9_onyx_int.h
Modify /vp9/encoder/vp9_rdopt.c
Modify /vp9/encoder/vp9_rdopt.h
Skip duplicate block encoding in the rd loopThis speed feature allows the encoder to largely remove the spatial
dependency between blocks inside a 64x64 superblock, thereby removing
the need to repeatedly encode superblocks per partition type in the
rate-distortion optimization loop.A major challenge lies in the intra modes tested in the rate-distortion
optimization loop. The subsequent blocks do not have access to the
reconstructed boundary pixels without the intermediate coding steps.
This was resolved by using the original pixels for intra prediction
in the rd loop, followed by an appropriately designed distortion
modeling on the quantization parameters. Experiments also suggested
that the performance impact is more discernible at lower bit-rate/psnr
settings. Hence a quantizer dependent threshold is applied to deactivate
skip of block coding.For bus_cif at 2000 kbps,
speed 0 : runtime 269854ms -> 237774ms (12% speed-up) at 0.05dB
performance loss.speed 1 : runtime 65312ms -> 61536ms, (7% speed-up) at 0.04dB
performance loss.This operation is currently turned on in settings of speed 1.
Change-Id : Ib689741dfff8dd38365d8c1b92860a3e176f56ec
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Revision df90d58f4f : Speed up motion estimation using small partitions' result(experiment) Current p
3 juillet 2013, par Yunqing WangChanged Paths :
Modify /vp9/encoder/vp9_block.h
Modify /vp9/encoder/vp9_encodeframe.c
Modify /vp9/encoder/vp9_onyx_if.c
Modify /vp9/encoder/vp9_onyx_int.h
Modify /vp9/encoder/vp9_rdopt.c
Speed up motion estimation using small partitions' result(experiment)Current partition checking starts from small sizes, and then goes up
to large sizes. This experiment uses the small partitions' motion
estimation result, which is already available, to speed up the
large partition's motion estimation. We can decide to skip some
patition checkings if they are unlikely choices. We could use the
motion vector(MV) result as current partition's prediction MV, limit
the search range and reference frame.Current result at speed 1 :
psnr loss : 1.19% for stdhd, 0.287% for derf.
speed gain : 14% for sunflower(hd), 11% for akiyo.Further improvement will be done later.
Change-Id : I5abfd070e9cace2e91e2a0247d1325df313887ab
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Revision 195061feda : Fix rectangular partition check in speed 1 Make encoder skip rectangular partit
30 septembre 2013, par Jingning HanChanged Paths :
Modify /vp9/encoder/vp9_encodeframe.c
Fix rectangular partition check in speed 1Make encoder skip rectangular partition check in speed 1 and above,
when early termination was triggered in partition split.
Thanks Guillaume (gmartres@) for catching this issue.This change makes bus_cif at 2000kbps speed 1 runtime goes down from
25612ms to 23438ms (about 9% speed-up), at the expense of -0.235%
performance down.Change-Id : I98613fad081a261d30d5fa206f934ca70601c180