sum domain 中文意思是什麼
sum domain
解釋
和域-
In fact, scaling technology is an essential component in many image / video processing such as to magnify / minify still image, to achieve special effect like picture - in - picture, to compress or transform digital video with spatial scalability etc. in this thesis we mainly employ this technology in video transcoding, which is a powerful but computationally intensive tools to convert one kind of video format into another, meeting different demand such as lower bitrates or various display terminals. in sum, there are two kinds of scaling schemes : one is in spatial domain and the other in transform domain. the scheme in transform domain can provide very good performance, that is, efficient computation and desirable image quality, whereas it has some disadvantage which is impossible or hardly to o vercome, especially some scenarios require arbitrary ratio zoom in horizontal and vertical, and excellent visual effect
兩種方法都各有其利弊：變換域的方法是利用現有常用的視頻壓縮方案都是基於dct這個特點，所以可以直接在變換域做處理，這樣可以節省大量的計算，但其缺點是由於dct是基於塊的變換，如8 8 ，所以很難找到一種方案可以進行任意比例的縮放，尤其是在縱橫縮放比例不一致的情形，但這對諸如hd縮放到sd和空域分級的壓縮方案來說尤為重要，基於空域濾波的方法卻沒有這樣的限制，同時可以保證縮放后的圖像的質量遠高於基於變換域的方法，為了達到高的縮放質量，就不可避免導致計算量過大。 -
The first chapter of this article consists of the following contents. suppose that are positive integers., then the bergman kernel function for the second type of hua domain where determined by the following recursion formula : and where is determined by the following recursion formula : it is inappropriate to use holomorphic transitive group to compute the bergman kernel function of hen because he11 is not a homogeneous domain, and we can not obtain the bergman kernel function of hen by obtaining the sum of an infinite series as we compute the bergman kernel function of reinhardt domain. we firstly give some holomorphic automorphisms such that for any he there exists a holomorphic automorphism satisfying next, we introduce the concept of semi reinhardt domain and get its complete orthonormal system
結合上述兩種方法就可獲得he _的bergman核函數的顯表達式，對于兩類廣義例外華羅庚域，還要用到jordantriplesystem的理論，才能求出其bergman核函數的顯表達式： 2當是正整數，時，廣義例外華羅庚域的bergman核函數其中滿足如下的等式：於是，可從等式得到所有的a _ j ， ry u dstu thalca000ereereereforfortheerethettithen其中廣； k由下歹遞推公式決定： 。 -
The hardware of the system is sum up with the purchased television aerial, agilent 8482h power sensor, dsp, oscillograph, etc. for the software part, the architecture takes advantage of the mathematical rule of both the antenna ’ s radiation field and electromagnetic field, for example, the finite - difference time - domain ( fdtd ) method
硬體電路設計調試方面，利用購置電視天線、 aglient8482h功率傳感器和dsp 、示波器等組成系統等進行試驗。在軟體模擬中，本文重點介紹並且綜合應用了天線輻射場的計算方法和電磁場的數值計算方法? ?時域有限差分（ fdtd ）方法。 -
To sum up, the main research work and its characteristic in this dissertation includes as follow : firstly, introduce the research background, point out the aim and actual meaning of the research, summarize the research status and development trend of time domain equalization algorithms and system on a chip design international and oversea
概括起來，本文的主要研究工作及其特點包括： 1首先介紹了課題的研究背景，指出了本文選題的目的和實際意義，總結了時域均衡演算法和片上系統設計的國內外研究現狀和發展趨勢。
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