The whole correlation-inheritance coding circuit system is designed, simulated and verified in verilog hdl on the candence systems 采用了硬件描述語(yǔ)言verilog對(duì)整個(gè)相關(guān)繼承矢量量化圖像編碼電路系統(tǒng)在cadence系統(tǒng)上進(jìn)行了西安理工大學(xué)碩士論文設(shè)計(jì)、仿真及時(shí)序驗(yàn)證。
Firstly, based on conventional vq, a fast algorithm named equal-sum block-extending nearest neighbor search ( ebnns ) is presented, which not only can achieve the reconstructed image of full search algorithm but also can greatly reduce both the codeword search ratio and chip area . in order to improve coding efficiency, a new algorithm called correlation-inheritance coding is proposed, which is embedded in conventional vq system to improve compression ratio by re-encoding the indexes 首先,在普通矢量量化基礎(chǔ)上提出了等和值塊擴(kuò)展最近鄰快速碼字搜索算法(ebnns),該算法在圖像畫(huà)質(zhì)達(dá)到窮盡搜索算法的前提下,大大降低了碼字搜索率和硬件實(shí)現(xiàn)面積;為了提高編碼效率,在相關(guān)性編碼方面,提出了相關(guān)繼承編碼算法,對(duì)普通矢量量化后的編碼索引進(jìn)行無(wú)損重編碼。