A　Discrete　Cosine　Transform　(DCT)　based　Modulation　Transfer　Function　(MTF)　is　used　to　improve　the　intra　quantization　matrix　for　the　High　Efficiency　Video　Coding　(HEVC)　standard.　A　new　method　is　used　to　calculate　the　spatial　frequency　in　the　calculation　process.　The　integer　DCT　for　the　HEVC　is　achieved　by　scaling　and　hand-tuning　the　DCT　matrix.　Due　to　difference　between　these　two　transforms,　the　quantization　matrices　are　optimized.　The　experimental　results　show　that　the　proposed　HEVC　intra　quantization　matrix　based　on　the　visual　perception　can　reduce　more　bit　rate　at　the　similar　video　quality　by　using　a　Structural　SIMilarity　(SSIM)　based　Bjontegaard　Delta　Bit　Rate　(BDBR)　performance　evaluation.　Since　only　the　quantization　matrices　are　changed　in　the　encoding　process,　the　proposed　algorithm　does　not　affect　the　structure　of　the　encoding　algorithm　and　does　not　add　the　coding　complexity.　©,　2014,　Science　Press.　All　right　reserved.