【正文】 o happened that he looked around him, at the indolence and the wantonness of the people in his circle。s essay titled SelfReliance. If you39。s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes－ all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the ―Grand View: Chinese Painting Highlight‖ session at China Guardian 2021 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2021 Spring Auctions, which recorded million yuan in total sales, experienced the same. The section number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,‖ said the president of China Guardian’s Hu Yanyan. Besides, the entry of new buyers also makes certain changes to the direction of purchasing. In a word, the overall market trend is very unpredictable. Although China Guardian 2021 Spring Auctions has achieved remarkable results, it does not mean that the market has walked out of the predicament. We still have to wait for the big economic boom to invigorate the art market.‖ Even so, the hot pursuit of some special items appeared this spring. A special session of China Guardian Spring Auctions titled ―Fine Gilt—Bronze Buddhist Images‖ achieved a great deal with total sales volume of million yuan and 92 percent sale rate. The 5th Shamar Rinpoche Statue from 1617th century of Tibet was sold for million yuan. The Beijing Chengxuan Auctions featured almost 2,800 items of coins and stamps in three sessions with good sale rate. The Huachen Auctions also set a special session of photographs under the condition of largescale decline of auction sessions. There was a palpable dull thud of disappointment that acpanied the return of the imperial entourage of Zhen Huan to her homeland. It followed a couple years of hushed excitement as Chinese fans were fed tidbits about their proud concubine who was supposed to conquer the high ground of the North American market. Zhen Huan is, of course, the title character of The Legend of Zhen Huan, a 2021 television series that swept China off its feet and later took other Asian countries by storm. Two years ago, it was reported that HBO, a premium cable service headquartered in the United States, was going to air it in North America after some modification. Now, a condensed version that provides English subtitles but no dubbing has finally been made available on Netflix for online streaming. This version, highly anticipated as a milestone in China39。s performers of the troupe still tour the region39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。 總之，對于基于小波變換的圖像壓縮方法研究，本文只是做了一個很小方面的研究，目前還有許多優(yōu)秀的算法值得人們?nèi)ミM一步研究。還分析了圖像小波變換后小波系數(shù)的特征，討論了優(yōu)化小波系數(shù)的小波基選擇問題。由我們前面所述的小波的一系列優(yōu)秀性質(zhì)，使得小波變換廣泛的用于圖像編碼技術(shù)，并且取得了很大的成功。而 上面 的一層 是圖像的粗略特征 ,也稱 低分辨率或者低頻小波系數(shù)。 第四步： n=n1，然后返回第二步。 （ 2）對 LIS 的每個記錄 (, )ij 進行如下處理： ○ 1 假如這個記錄代表一個 A類集合就進行以下處理： 1）輸出 ( ( , ))nS Di j ； 2）假如 ( ( , )) 1nS D i j ? ，則 ）對每一個 ( , ) ( , )k l O i j? 進行如下的處理： ）輸出 ( , )nS kl ； ）假如 ( , ) 1nS k l ? ，將 (,)kl 加入到 LSP，并且輸出,klX的符號位； ）假如 ( , ) 0nS k l ? ，將 (,)kl 加入到 LIP。輸出 2 ( , ) ,lo g (m a x { })i j i jnX? ；將 LSP 設(shè)置為空表，將(, )i j H? 加入到 LIP中， (, )i j H? 有子孫項的加入到 LIS 中，并作為 (, )Di j 類集合。 H 一切根節(jié)點的集合。 (, )Di j 位于 (, )ij 位置的小波變換系數(shù)的所有子孫坐標合集。 [8曹婧 ] 為了便于描述 SPIHT 算法，先規(guī)定幾個用于方向樹劃分的集合。編碼時采用 2倍遞減的多級門限值，在各比特平面上進行孤立系數(shù)和零樹的判決。 SPIHT 編碼方法 SPIHT 編碼方法的原理 Shapiro 首次提出了二維圖像的小波零樹嵌入編碼（ EZW）算法，后來，由Said 和 Pearlman 在 EZW 算法的基礎(chǔ)之上給出了更為精細的多級樹集合分列排序（ SPIHT）的小波零樹嵌入編碼算法。 （ 4）重新排序： 為方便 設(shè)置下一次掃描 時所需要 的量化間隔 ,以 便 提高解碼的精度 ,對輸出符號為 NEG 或 POS的數(shù)據(jù)重新排序 。 （ 2）主掃描：按照圖 的掃描順序進行掃描，把小波系數(shù)和閾值 T 進行比較，如果 ( , )||ijcT? 則就輸出一個符號，并且用一個主掃描表來記錄這些輸出符號。 門限用于計算 非顯著和 顯著小波系數(shù)的顯著性圖 ，利用零樹用 一種有效的方法來表示顯著性圖 。 如 圖 是通過三級小波變換而形成的深度為 4的樹 。 EZW 編碼方法的基本思想 EZW 算法采用