紋理壓縮 的英文怎麼說
中文拼音 [wénlǐyāsuō]
紋理壓縮
英文
s3tc(s3 texture compress-
Testing of wood ; compression test parallel to grain
木材檢驗.與紋理方向平行的壓縮試驗Cracking failure of centrifugal compressor ' s impellers was analyzed, the welding craters in the impellers led to stress concentration. the unsteady gas flow accelerated the development of cracks in the impeller
摘要針對某石化公司離心壓縮機葉輪多次發生開裂、掉塊等故障以及裂紋形成機理進行了分析。分析結果表明了葉輪開裂原因系疲勞開裂,葉輪焊接缺陷產生了焊接弧坑,造成表面應力集中,氣流激振加速了裂紋擴展。A texture compression algorithm based on hybrid coding is put forward
摘要提出了一種基於混合編碼的紋理壓縮演算法。Compression and restoration of texture images of walls for 3d visualization of urban buildings
城市三維可視化中規則房屋墻面紋理圖像的壓縮與恢復Furthermore, by using the database with increased quantity and details need to handle the datasets which do not fit in ram ( out - of - core datasets ). meanwhile, advances in shading and image quality in general have raised the bar for image quality we would like to achieve in terrain rendering a in this thesis, we propose an efficient hardware - friendly framework - chunked lod, for large - scale terrain real - time rendering. within this framework, the approach for integrating multi - resolution representations of terrain geometry and terrain texture data is presented
變換和光照( transform & lighting ) 、立方環境材質貼圖( cubicenvironmentmaps ) 、頂點混合( vertexblending ) 、紋理壓縮( texturecompression )和凹凸映射貼圖( bumpmapping ) 、雙重紋理( dualtexture )四像素256位渲染等均可以在gpu中完成,大大減輕了cpu的壓力,對實時圖形渲染產生了深遠的影響,這其中包括實時地形渲染。The algorithm consists of two important parts : after dividing the image into blocks, the first step is extracting the blocks " texture feature, and the next step is classifying the features sets into clusters. the compressing is implemented by using the center block
本文的演算法主要由兩部分組成:將圖像分塊后,第一步是提取塊的紋理特徵,第二步是對特徵集進行分類,利用中心索引塊進行壓縮。Secondly, hyperspectral images are hard to compress because of their abundant details, complicated texture and insignificant special correlation. making use of the significant spectral correlation within the hyperspectral images, we propose an optimal linear predictor which makes the square error minimal
針對高光譜遙感圖像細節豐富紋理復雜,空間相關性弱,難于壓縮的特點,本文充分利用了高光譜遙感圖像的譜間相關性,設計出對相鄰譜段進行預測並將預測殘差均方降為最小的一種最佳線性預測器。As to still image coding, even though the performance of wavelet image coding algorithms excel first generation image compression standard jpeg, but they will produce boring mosquito noise at low bit - rates, which are mainly located around image edges. besides that, their coding efficiency will drop rapidly for those natural images with rich textures
而在靜態圖像編碼方面,雖然小波圖像演算法的編碼性能遠遠超過第一代圖像壓縮標準jpeg ,但它在低位率條件下也會出現蚊式噪音,主要集中在圖像邊緣附近,而且對于包含豐富紋理的自然圖像,其編碼效率也會急劇下降。A compression algorithm can be developed exploiting this basis to obtain the most economical representation of the image in terms of textured patterns
根據這種自適應基可以制定一套壓縮演算法,從而用較少的系數就可以描述紋理圖象。The algorithm of sequencable mark and description of the object for crack automatic identification is presented by means of pre - image process. on basis of visual c + + 6. 0 developing environment, the software function of controlling of magnetic partical testing engine and the stepping - motor is realized in c + + and mfc with objected programming method. the automatic system of the camshaft of small diesel engines automatic magnetic partical testing is realized, which is the predicted goal that we would achieve
用計算機控制磁粉探傷機和步進電機的工作;解決了jpeg圖象格式在windows系統中visualc + +編程環境下的壓縮轉換、顯示和處理的問題;結合數字圖象的預處理,提出了通過圖象分析自動識別裂紋的順序目標標記與描述演算法;基於visualc + + 6 . 0開發環境,用c + +語言和mfc類庫,採用面向對象的程序設計方法,用軟體實現了對磁粉探傷機和步進電機等硬體系統的自動控制功能;實現了柴油機凸輪軸熒光磁粉探傷系統的自動化,達到了預期的目標。Vqtc vector - quantization texture compression
向量紋理壓縮Vqtc ector - quantization texture compression
向量紋理壓縮In extracting texture characteristic, to cut down the amount of calculation, we compress the image and convert it to gray image
在提取紋理特徵時,為了減少計算量,首先對原圖像進行壓縮和灰度化。People often think about the filter ' s characters of orthogonal, symmetry, regularity, but seldom synthetically think about some factors such as image texture or compression rate. in this paper used the same adaptive arithmetic coder for many filters, analyzed the effect factors synthetically for the best wavelet compression, and give some methods for selecting filter
本文對多種常見濾波器,採用相同的自適應量化編碼方法進行實驗,研究並分析了選擇濾波器時應該考慮的圖像紋理、濾波器長度、壓縮比等一些綜合因素,有效解決了在小波圖像壓縮過程中,如何更好的選擇濾波器的問題。Firstly, we directly use the motion vectors of macro - blocks defined in mpeg - i / ii compressing standards and filter the immobile macro - blocks. then, we build a skin color model in ycbcr color space using the convergent property of skin color, and we present the gaussian model skin recognition method and positive - negative look - up table method in details. and we analyze the texture of skin after wavelet transform and present a bayesian method based texture recognition method and a high texture filtering method
根據皮膚的運動性,首先直接利用mpeg -中的壓縮標準中有關宏塊運動預測的方法,提取宏塊的運動矢量,將沒有運動的宏塊過濾掉;然後,利用皮膚顏色的聚合性,在ycbcr顏色空間建立了皮膚的顏色模型,並分別闡述了基於高斯分佈模型的皮膚檢測法和正反概率表方法;最後,通過對皮膚進行小波變換后的紋理進行統計后,發現有效的利用皮膚紋理特徵,可以比較有效的過濾掉那些具有類似於皮膚顏色的背景,分別闡述了基於貝葉斯方法的紋理檢測方法和高紋理過濾法。In order to adapt the scheme to both the color image and the gray image, while embedding the watermarking into the image, the scaling factors are determined by the local luminance feature and texture features of the image. it can improve the embedding strength and the watermarking robustness. from the experimental results, the stego - images are extremely robust to common image processing such as median filter, jpeg compression and denoising after adding the stochastic noises
2 、提出了一種新的基於小波變換和紋理特徵的數字水印演算法,該演算法依據從圖像小波域提取出的紋理特徵來選取水印的嵌入位置,較好地利用了圖像的紋理區域,既能掩蔽較多的噪聲,又能較好地抵抗jpeg壓縮等一般性攻擊,調節了數字水印技術中存在的不可見性與魯棒性之間的矛盾。With the aid of the " pseudo - traction " method, the superposition technique and the arrived fundamental solution, a method for getting the stress intensity factor ( sif ) for material such as rock with center inclined crack under compressive loading are given
採用「偽力法」和疊加原理,結合所求的基本解,給出了含中心斜裂紋的巖石類材料在壓縮荷載作用下的應力強度因子( sif )的解法。The proposed method compresses images based on sub - band coding, and then exacts compressed images features such as color, texture and shape
本系統直接對小波壓縮圖像進行分析,提取壓縮域低頻圖像的顏色、紋理、形狀特徵,然後通過判別函數判別圖像的相似性。Statistical texture feature extraction based on wavelet compressed domain
基於小波壓縮域的統計紋理特徵提取方法Second, in this paper, we also research the arithmetic of wavelet and fractal, at last give a method to synthesize the two technologies. through experiments testify this method is feasible. choice of filter in wavelet image compression is a critical factor which affects image compression quality
選擇濾波器時,人們一般考慮正交性、對稱性、正則性、支撐集和消失矩階數等濾波器本身的性質,卻很少將他們與圖像紋理特徵、濾波器長度、壓縮比等因素綜合起來考慮。分享友人