有效圖象碼 的英文怎麼說

中文拼音 [yǒuxiàotúxiàngmǎ]
有效圖象碼 英文
active video bit
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 圖 : Ⅰ名詞1 （繪畫表現出的形象; 圖畫） picture; chart; drawing; map 2 （計劃） plan; scheme; attempt 3...
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 有效 : effective; valid; efficacious
  1. Based on unsupervised learning, sparse coding is suitable to describe images with non - gaussian distribution and can get rid of the high order redundancy among the image pixels. since the basis function of sparse coding has build - in clustering property, it increases the inter - class variations of the features

    稀疏編碼是一種基於非監督學習的演算法，它適合描述具有非高斯分佈的數據對象，能夠有效地消除圖像象素點之間的冗餘，並具有內在的聚類特性。
  2. While motion - jpeg2000 is suitable to these requests. based on sufficient computer simulation, which proves the effectiveness and probability of the method, we used the chip adv202 which is targeted for jpeg2000 codec together with some other assistant devices, an image compression sub - system for the tv weapon guidance system is implemented using hardware in this thesis

    依據這一思想，在進行了充分的計算機模擬模擬，驗證該方法有效、可行的基礎上，本文以adi公司生產的jpeg2000標準視頻編解碼專用晶元adv202為核心，設計並實現了電視制導系統中的圖象編解碼子系統。
  3. However, there still exists correlation between coefficients of sub - matrices after 4d - mdct. this thesis proposes a four dimensional matrix video coding method based on context to get rid of the correlation between coefficient sub - matrices further. it includes three parts as follows : firstly, this thesis presents a four - dimensional matrix video encoder and decoder model, which contains components of prediction, transform and entropy coding

    實驗結果表明，該方法與傳統的二維編碼方法相比，具有高壓縮比和高圖象質量的優點;與矢量量化編碼相比，具有碼表體積小，計算復雜度低的特點;與霍夫曼編碼方法相比，在相同信噪比的條件下，對運動相對劇烈的視頻序列壓縮效果要更好。
  4. Active video bit

    有效圖象碼比特
  5. Through anatomizing ezw coding algorithm and taking the effects of human being ’ s vision characteristics on quality of reconstituting image. a improved zeretrees algorithm are put forward. at last a new image compression encoding algorithm based on wavelet transform and vector quantization is put forward. the experiment show, in very low bit rate, using the proposed algorithm, the reconstructed image is superior to that of ezw in both of perception and psnr

    最後，在小波樹的基礎上，通過對矢量量化的研究，本文提出了一種基於四叉樹結構新的小波樹矢量量化壓縮編碼演算法，實驗證明，在較高壓縮比的情況下，使用此方法得到的重構圖象質量（視覺效果和峰值信噪比）比通常的小波壓縮演算法有了較大的提高。
  6. The analysis on the method shows that an advantage of wavelet - based video compression coding is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in dc compression. and it can solve the contradiction between limited bandwidth and infinitude requirements of increasing customers in present communication system

    該系統充分利用人眼的視覺特性來減少幀內和幀間的冗餘信息，能夠消除傳統圖像編碼的方塊效應、蚊子效應等現象實現高壓縮比，高質量的圖像編碼，可較好地解決現行通信系統中有限帶寬與日趨增加的無限用戶需求之間的矛盾。
  7. Moreover, experimental results have proved that the method is robust enough to some image degradation process such as cropping, jpeg compression and sharpening etc. embedded zerotree wavelet coding ( ezw ) algorithm, it is found that this algorithm does not make full use of the properties of human visual system ( hvs ) to eliminate visual redundancy

    實驗證明，該方法對剪裁、 jpeg壓縮和銳化等圖象退化處理均具有一定的抵抗力，是一種行之有效的水印嵌入方法。本文在對零樹編碼方法研究的基礎上，針對零樹編碼方法沒有充分利用hvs特性來有效消除視覺冗餘的缺點，提出了一種基於小波系數的零樹編碼方案。
  8. Then this paper designs an integrated coding algorithm based on dt - mesh according to mandate of mpeg - 4 hi which a motion estimation algorithm based on dt - mesh is proposed and data structure is transformed in order to fulfill the coding order of mpeg - 4. finally, compared with the former algorithm of h. 263 standards, the advantages ? of the latter algorithm in mpeg - 4 are high compress ratio and multi - resolution with utilitarian value

    最後，本文把基於dt的mpeg - 4編碼性能同h . 263編碼性能進行了全面的比較，結果表明， dt作為mpeg - 4標準中的一種編碼方法，在圖象質量、壓縮比、多解析度、避免塊效應方面有很大的優越性，有一定的實用價值。
  9. Combined with the summarizable analysis of the existing roi detection techniques, an openness roi automatic detection algorithm is proposed. the test results show that the algorithm is efficient. then, based on the analysis of two roi coding algorithms, combined with the characteristic of detection results, a fast roi mask generation algorithm is designed

    結合對現有roi檢測演算法的總結分析，本文提出了一種用於遙感圖象的roi自動檢測演算法，測試結果驗證了該演算法的有效性;然後，在對兩種roi編碼演算法深入研究的基礎上，結合本文檢測結果的特點，設計了一種roi快速掩模產生演算法，該演算法優于jpeg2000的roi掩模產生演算法，極大地減少了roi編碼時間。
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