still image 中文意思是什麼
still image
解釋
靜像-
Three commixed still image coding algorithms are proposed based on them and such ideas as : zerotree coding, wmse ( which is based on mankind visual characteristics ), classified vector quantization with different vector structures and classification methods. the chapter gives the principium analysis, realization schemes and simulation results of the proposed algorithms
在此基礎上，結合零樹編碼思想，以及基於人眼視覺特性和分類矢量量化的思想，根據不同的矢量構成和分類方法提出了三種混合型靜止圖像編碼方法，給出了演算法原理的分析、實現方案和模擬結果，最後對本章方法作出分析總結。 -
Resemble with the digital watermark methods of the other media such as still image and video, digital audio watermark must account for some problems which consist of perceptual transparency, data bit rate, robustness, security and real - time etc. the robustness of watermark is vital to the practical application, which requires the watermark providing with significant data since it suffered from some intended attacks or unintended revisal
與靜態圖像、視頻等數字水印方法類似，音頻水印的研究主要須解決感知透明性、數據嵌入率、魯棒性、安全性以及實時性等問題。水印演算法的魯棒性對于實際應用來說是至關重要的，它要求數字水印在遭受有意的攻擊或無意的修改後，仍能提供有意義的數據，這一性能對版權保護的應用顯得尤為突出。 -
The design and realization of still image collection and compression system in high resolution aviatic digital camera
高解析度圖像採集與壓縮系統的設計實現 -
It is well known that jpeg and jpeg2000 are still image compression standard with high performance at present time. so we choose them as our investigative base to compress image. my amendment in jpeg mainly includes self - adaptive huffman coding and reduction of blocking effect
由於jpeg標準所提供的演算法還有進一步改進的可能，所以在文中將介紹如何對jpeg標準進行演算法改進，主要包括：自適應哈夫曼編碼、塊效應的消除；針對jpeg2000標準，將主要介紹jpeg2000標準核心演算法的實現以及如何用最大位平移方法實現感興趣區編解碼。 -
In chapter 2, a general digital watermarking frame is presented, including the generation, embedding and detection of watermark. in chapter 3, the concept of watermarking channel is presented, the modes of watermarking channel and image dct coefficients is proposed, the capacity of watermarking channel is evaluated by embedding watermarks to selected still image dct coefficients in direct spread spectrum. in chapter 4, a watermarking algorithms based wavelet multi - resolution is presented, by conjunction with human visual model, it keeps invisibility of watermark in host image and need not original image during detection
數字水印是一種新的數字媒體保護技術，它是將特定的信息（如版權信息、秘密消息等）嵌入到圖象、語音、視頻等各種數字媒體中，以達到版權保護等目的，同時，這種信息對宿主媒體的影響不足以引起人們的注意且有特定的恢復方法，此信息對非法接收者應該是不可見的，本文主要對數字水印的一般框架，靜止圖象dct系數的理論容量，圖象水印的嵌入和檢測，數字媒體防篡改以及數字水印的攻擊等問題進行了研究，提出了兩個新的水印算演算法。 -
Improved wavelet zerotree still image coding
改進的靜止圖像小波零樹編碼 -
Multipoint still image and annotation protocol
多點靜止圖像和注釋協議 -
3. studying still image transmission systems without channel coding or with turbo codes over both awgn and rayleigh fading channels by matlab simulation. simulation results show that turbo codes not only advance the dependability of communication systems, but also reduce channel signal - to - noise ratio ( snr )
將turbo碼應用於靜止圖像傳輸系統，信源編碼採用矢量量化編碼，分別在awgn通道和rayleigh衰落通道下，對不採用通道編碼和採用turbo碼作為通道編碼的各種情況進行模擬。 -
This paper mainly introduces the image compressing technique in digital camera, consisting of universal image compressing techique, image compress algorithmic in the international still image compress standard jpeg2000, jpeg2000 file format, soft validating of the algorithmics, and transplanting the algorithmic to digital signal processor
概括起來，本文的內容主要有對圖像壓縮技術的熟悉、對jpeg2000壓縮演算法原理的理解，對jpeg2000標準文件格式結構的解釋，演算法的軟體編碼驗證，並設計相應的dsp演算法驗證。 -
They still need to be studied. this thesis systematically studies the performances of turbo codes over both awgn channels and rayleigh fading channels, and discusses the applications of turbo codes in still image transmission systems. some significative conclusions are obtained
本文系統地研究了turbo碼在awgn通道和rayleigh衰落通道下的性能，並探討了turbo碼在靜止圖像傳輸系統中的應用，取得了一些有意義的成果。 -
People meet a lot of questions in storing and transfering all kinds of still - image under the development of the communications thecnology
現代通信技術的發展，提出了大量存貯、記錄和傳輸各種靜態圖像的問題。 -
But at present, there is a lack of still image compression algorithm with high performance, which baffle the development of this technique
由於pdf417條碼的存儲容量相對於一般的條碼而言要大很多，因此尋找高性能的靜止圖像壓縮演算法是解決此問題的關鍵。 -
This paper deals with the algorithms of still image compression with high fidelity, including embedded zerotree coding and jpeg2000
本文主要研究高保真靜止圖象壓縮演算法，包括嵌入式零樹編碼演算法和jpeg2000 。 -
To address this need in the specific area of still image encoding, a new standard is currently being developed, the jpeg2000
靜止圖象壓縮是多媒體通信系統的重要組成部分。目前最普及的靜止圖象壓縮標準有jpeg ， jpeg2000等。 -
The core algorithm of still image compression standard jpeg2000 are simulated with watcom c, including the algorithm of ebcot, the lifting wavelet transform and mq arithmetic coder
同時，本文還對靜止圖象壓縮標準jpeg2000的核心演算法進行了c語言實現，包括ebcot演算法、小波提升演算法、 mq算術編碼器等。 -
Jpeg is a commonly used digital image compression algorithm officially known as iso / iec standard 10918. jpeg has been widely used in multimedia communication for its excellent performance on compressing continouse tone still image
Jpeg靜態圖像壓縮演算法（ iso / iec10918 ）因其對連續色調、多級灰度的靜止圖象具有優良的壓縮特性得到了廣泛使用，已成為目前多媒體通信中的圖像壓縮標準之一。 -
None of the current still - image compression and coding standards can match all the new requirements of image processing, such as compression, roi coding, robustness, different types of still images, interactivity, security, expansion and open architecture. however, by using new techniques and depending on its new features, jpeg 2000 can address all the needs
本文的立題意義在於利用jpeg2000具有的特性和採用的新技術，解決包括這些壓縮、 roi編碼、健壯性、多種圖像類型、交互性、安全性、可擴充性和開放性等新的圖像應用領域的不同需求。 -
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。 -
Facsimile communication is a branch of still image communication, which has wide applications and fast development
傳真通信是一種靜止圖像通信，發展迅速、應用廣泛。 -
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。
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