Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Hoi-Kok Cheung"'
Publikováno v:
Signal Processing: Image Communication. 25:143-162
Conventional hybrid video coding systems rely on the assumption that the brightness is constant. This does not take inter-frame brightness variations into consideration during motion estimation and compensation processes. Under the influence of inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::597a7ffeda08170ac9b794c0fd008de3
https://doi.org/10.1016/j.image.2010.01.001
https://doi.org/10.1016/j.image.2010.01.001
Publikováno v:
SpringerPlus
hand tremor. This report can assist doctors in making the best treatment plan. In addition to monitoring the hand tremor, we also analyse the orientation signals from the chest and the two thigh sensors. We note that different postures have different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a44b7e4ad5600504c37e423966ea087
http://europepmc.org/articles/PMC4797729
http://europepmc.org/articles/PMC4797729
Replacing Conventional Motion Estimation with Affine Motion Prediction for High-Quality Video Coding
Autor:
Wan-Chi Siu, Hoi-Kok Cheung
Publikováno v:
The Era of Interactive Media ISBN: 9781461435006
In modern video coding systems, motion estimation and compensation play an indispensable role among various video compression tools. However, translation motion model is still extensively employed for motion compensation, making the systems not effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d1317daa4deb0dc1348696700a776f3
https://doi.org/10.1007/978-1-4614-3501-3_13
https://doi.org/10.1007/978-1-4614-3501-3_13
Publikováno v:
ICCE
This paper proposes a camera orientation compensation technique to help compensating unwanted camera orientation so as to accurately estimate the distance of a preceding vehicle in a vehicle driver assistance system. We propose a method in computing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcd4e8e39ad84336315b3a1f3188bae3
https://doi.org/10.1109/icce.2012.6161840
https://doi.org/10.1109/icce.2012.6161840
Autor:
Hoi-Kok Cheung, Wan-Chi Siu
Publikováno v:
ISCAS
Conventional coding system using translation only motion estimation and compensation system cannot efficiently handle complex inter-frame motion activity including scaling, rotation and various forms of distortion. In this paper, we propose a local a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::554eaa5df90e19a3769028aeae8f6528
https://doi.org/10.1109/iscas.2010.5537406
https://doi.org/10.1109/iscas.2010.5537406
Publikováno v:
2008 International Conference on Neural Networks and Signal Processing.
In this paper, we propose a DCT based binary matching approach for fast motion estimation. The proposed approach is suitable to be applied to our previously proposed retinex based coding system which is characterized with fast motion estimation and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e01db896a49e6a35d19848640bc52ca
https://doi.org/10.1109/icnnsp.2008.4590437
https://doi.org/10.1109/icnnsp.2008.4590437
Publikováno v:
ICASSP
Conventional motion estimation does not take inter-frame brightness variations into consideration, which causes inefficient video coding for sequences involving brightness variations. H.264 provides a specific mode called weighted prediction targetin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53d82f8f7b099479ec7f80c1c6ee14d2
https://doi.org/10.1109/icassp.2008.4517821
https://doi.org/10.1109/icassp.2008.4517821
Publikováno v:
ICIP
Conventional block based motion estimators assume constant inter-frame object brightness. Pixel discrepancy is resulted primarily from motion factor without considering the influence of brightness changes. In this paper, we propose a simple and effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73175feb577256be0506cbc79f6545a4
https://doi.org/10.1109/icip.2008.4712391
https://doi.org/10.1109/icip.2008.4712391
Publikováno v:
ISCAS (3)
A new block-based local motion estimator independent of illumination variation is presented. Conventional motion estimators rely on an assumption that the difference between images results solely from motion activities. This hypothesis ignores anothe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e0afe411919887aa17b0858f85fa8a3
https://doi.org/10.1109/iscas.2005.1465234
https://doi.org/10.1109/iscas.2005.1465234
Publikováno v:
Proceedings 7th International Conference on Signal Processing, 2004. Proceedings. ICSP '04. 2004..
A novel illumination compensation scheme for sprite coding is presented in this paper. Inter-frame pixel discrepancy due to the effect of frustrating illumination conditions is one of the major challenges for most correlation-based global motion esti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c7a8158179faa6f965d424d2ab0c950
https://doi.org/10.1109/icosp.2004.1441545
https://doi.org/10.1109/icosp.2004.1441545