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H.264 VIDEO CODING ARTIFACTS: MEASUREMENT AND REDUCTION OF FLICKERING
Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för tillämpad signalbehandling.
Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för tillämpad signalbehandling.
2014 (engelsk)Independent thesis Advanced level (degree of Master (Two Years))Oppgave
Abstract [en]

H.264 video compression technique is currently one of the most widely used video codec for video compression and transmission. It is very important to maintain the quality of video with compression. Our research work mainly focuses on finding the various artifacts caused in the video due to compression using H.264 video technique. Blocking, ringing and flickering are the main artifacts found in the H.264 compression. Blocking and ringing are reduced mostly with the use of in loop filter in the H.264 codec. Even though blocking and ringing are reduced successfully, flickering is still seen in intra coded frames. Flickering is a temporal artifact which is otherwise known as mosquito noise is caused by change in the luminance values of the stationary region due to use of various prediction techniques . We propose a temporal median filter which can successfully reduce flickering effect in the H.264 video. The performance of the proposed filter is evaluated using sum of squared difference (SSD) metric.

sted, utgiver, år, opplag, sider
2014. , s. 46
Emneord [en]
H.264, Artifacts, Blocking, Ringing, Flickering, Temporal, SSD.
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-5738Lokal ID: oai:bth.se:arkivex18F8E3DC44B8CEF0C1257CAE005564D6OAI: oai:DiVA.org:bth-5738DiVA, id: diva2:833137
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RAKESH ANIL: +919491558888 BALARAMA KRISHNA: +46761952950Tilgjengelig fra: 2015-04-22 Laget: 2014-04-02 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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