Fast H.264 inter mode decision based on inter and intra block conditions

Hung Ming Wang, Ji Kun Lin, Jar Ferr Yang

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


In H.264 advanced video coding (AVC), the inter prediction with variable block sizes plays an important role to achieve compression efficiency. Although it actually raises the coding efficiency in H.264, it also increases the complexity due to the decision of the best inter mode. In this paper, we will propose a fast algorithm based on neighboring information and homogeneous condition to select the best mode effectively. For each macroblock, we first select the initial mode by using probability table and then use homogeneous condition analysis with motion vector relation to accelerate the inter mode decision process. Experimental results show that our proposed algorithm can save about 67-70% mode computation with negligible PSNR loss, which is very helpful for H.264 interframe coding.

Original languageEnglish
Article number4253471
Pages (from-to)3647-3650
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
Publication statusPublished - 2007
Event2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States
Duration: 2007 May 272007 May 30

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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