201004366 九、發明說明： 【發明所屬之技術領域】 本發明係與影像處理有關， =、f視訊影像之後處理功能之行發明係關於 整方法。 凌置及其影像調 【先前技術】 來，由於影音傳播技術的進步加 u界各國均陸續開始發展高品質的數位t數位化的潮 數位電視相關產業的蓬勃發展。 4毛硯，也帶動了 w 車又於傳統類比訊號在傳輸處理過程中零私d 土 t之相，數位訊號並無此問題，因無法 號。此外，數位訊號還可以被壓縮以、^品質的訊 例如一個類比電視頻道只能播送目^貝f置加大: 頻道卻可播送三、四個或更多節目。“都？：；數位 位化後可以帶來的好處。 二都疋將電視訊號數 訊廣展歐洲數位視 :視訊地面廣播(DigitalVide ; ^ 傳輸技術標準為基礎，提出―齡射iierrestnai，DvB-T) DVR ί彳?^驗雜標準化程序，_於歐個地區進行 •傳輸技術標準之實驗性試播與研究計晝。 g 材^? DVB_T雜麟，DVB_H雜技術為了 ίίί於手持裝置之特殊Μ，具有低功耗、高行動性、 合易接收、共通平台及網路切換服務不中斷等優點。展望 201004366 來，藉由行動通訊網路與DVB_H廣播網路之整合， 使用者更多樣化的内容與互動式服務。 八 至於數位電視所強調的高壓縮率之視訊壓縮技術，過去 直由MPEG 4視也麼輔標準獨領風騷。然而，隨著視 縮技術不斷地發展’—種顧lH.264龍觀，鮮已 1^264視訊壓縮標準可利用極小的視訊資料，即能提供 fif=的視訊品質。也就是說，使用者只需開啟資i量 相虽小的H.264視訊檔案，即可看到非常清晰的視訊畫面。 例如H.264視訊壓縮標準只需三分之一至二 一 料傳，率’即可提供與MPEG_2視賴縮標準—樣的晝質。、 若以相同的資料傳輪率央吾 丨 一、 _奸这羊采看权264視訊壓縮標準之解析 度Τ違MPEG-4視訊壓縮標準的四倍。 ㈣’DVB_H傳輪技術所採用之視訊壓縮 j訊壓縮標準。藉^ a264視訊壓縮技術， 手持裝置收可傳送30巾畐影像至手持裳置，讓透過 高畫質、速度快的=£^目者亦能享娜在家觀賞一樣 点Η、=、目' D：JB_H戶斤傳輸的訊號不穩定時，很<能會造 塊。此時解/馬器發生錯誤’因而產生了錯誤之影像區 4 馬後視汛之影像後處理機制就變得很重要。 a 型 引所Μ之影像後處理方法大致可分成下列兩種類 201004366 不連續之現象，因此並不實用 另一種方法是採取高階的'影像處理技 測、輪廓彳貞測、紋理抑制或鄰近邊點分析笔牛&】如&緣偵 缺點在於其運算複雜度太高，並不適用運丄此方法之 當有限的手持裝置上。 用於運异旎力及資源相 種行動通訊裴置及 因此，本發明之主要範疇在於提供 其影像調整方法，以解決上述問題。 【發明内容】 本發明所提出之行動通訊裝置及其影 不增加行動通訊裝置之運算負擔並’可於 :=前提下―區㈣:； 根據本發明之一具體實施例係一種行動 '錯誤區域 斯結接至該判斷模組。若該判斷模組之判 區域資訊疋；丄丨f將會擷取關於該錯誤區域之-鄰近 〜吻位於該錯誤區 7 201004366 近區域亥擷取模組，並係用以根據該鄰 就是說域相關之一推測動態向量。也 估算出對應_料_=^^_近_之動態向量 碼後視訊串算模組，並係用以根據該解 影像之一先前影像。、象疋该視讯串流中相對於該目前 組。連可進一步包含一解碼模 視訊串流解繼生_碼_=’。其娜於將—原始 際上根;j::艾種影像調整方法。實 =行動通職。流功 產生一解碼後視訊串流。 視矾串流％碼後 流令之-目前影像是否包含解碼後視訊串 該方法擷取關於該錯誤;;之!;判斷結果為是， 關的-動ί向ΐ疋與位於該錯誤區域附近之一鄰近區域相 域之1測;:法；訊計算對應於該錯誤區 相關之-推測動態向量^是與該錯誤區域 :考影像可以是該視訊串流中相對於該“i前 201004366 相較於先前技術，根據本發明之行動通訊裝置及其旦 調整方法，提供了—種解碼後視訊串流之影像後處理機=像 〒僅可得到良好的影像處理效果，避免直接以解碼時之1 ^考衫像作為影像修補之依據所造成之影像不連續現象，^ 日守f於其所需之運异複雜度不高’因此，根據本發明之旦 調整方法非常適用於運算資源相當有限的行動通訊裝置。'輯201004366 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to image processing, and the invention of the post-processing function of =, f video images is related to the entire method. Lingding and its image adjustment [Previous technology] As a result of the advancement of audio-visual communication technology, countries around the world have begun to develop high-quality digital t-digitized digital TV-related industries. 4 砚 砚 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , In addition, the digital signal can also be compressed, and the quality of the message, for example, an analog TV channel can only be broadcast to the target, but the channel can broadcast three, four or more programs. "All?:; The benefits that can be brought by digitalization. Erduo will broadcast the TV signal digital broadcast to Europe digital view: video terrestrial broadcasting (DigitalVide; ^ transmission technology standard based, proposed - ageing ierrestnai, DvB- T) DVR 彳 ^ ^ 验 验 验 ^ ^ ^ 验 验 验 验 验 验 验 验 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 欧 DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB DVB With low power consumption, high mobility, easy to receive, common platform and network switching service without interruption, etc. Looking forward to 201004366, through the integration of mobile communication network and DVB_H broadcast network, users are more diverse Content and interactive services. The high compression video compression technology emphasized by digital TV has been dominated by MPEG 4 and the standard. However, as the shrinking technology continues to develop, .264 Longguan, fresh has 1^264 video compression standard can use very small video data, that is, can provide fif= video quality. That is, users only need to open a small amount of H.264 video files In the case, you can see a very clear video picture. For example, the H.264 video compression standard requires only one-third to two-one data transmission, and the rate can provide the enamel with the MPEG_2 viewing standard. With the same information transmission rate, the 264 video compression standard has a resolution of four times that of the MPEG-4 video compression standard. (4) Video compression used by the DVB_H transmission technology. Compression standard. With the ^ a264 video compression technology, the handheld device can transmit 30 frames of images to the handheld display, so that the high-quality, fast-speed =£^ can also enjoy the same point at home, = , D: When the signal transmitted by JB_H is unstable, it is very [can create a block. At this time, the solution/horse has an error.] This produces an error in the image area. It becomes very important. The image post-processing method of type A can be roughly divided into the following two types of 201004366 discontinuity, so it is not practical. Another method is to adopt high-order 'image processing technology, contour speculation, texture. Suppress or adjacent edge analysis pens & For example, the disadvantage of & edge detection is that its computational complexity is too high, and it is not suitable for the limited handheld devices that operate this method. It is used for the operation and communication of mobile communication devices and therefore, the main The invention provides a method for image adjustment to solve the above problems. [The invention] The mobile communication device and the shadow thereof provided by the invention do not increase the computing burden of the mobile communication device and can be: under the premise of "area" (4): One embodiment of the present invention is an action 'error region' that is connected to the judgment module. If the judgment module determines the area information 丄丨; 丄丨f will retrieve the error area - the adjacent ~ kiss is located The error zone 7 201004366 is a near-regional capture module, and is used to infer a dynamic vector according to one of the neighbors and the domain correlation. A motion vector code post-video constellation module corresponding to the __^^^___ is also estimated and used to map a previous image according to the solution image. Symbolizes the video stream relative to the current group. The linker may further include a decoding mode video stream solution succeeding _code_='. Na Na will be - the original root; j:: Ai image adjustment method. Real = action full-time. Streaming produces a decoded video stream. Depending on the stream, the % code is followed by the stream command - whether the current image contains the decoded video string. The method retrieves the error;; the !; the judgment result is yes, the off-moving ΐ疋 direction is located near the error area. One of the adjacent regions is measured by a method; the method; the calculation corresponding to the error region is associated with the speculative motion vector ^ and the error region: the test image may be in the video stream relative to the "i pre 201004366 phase Compared with the prior art, according to the mobile communication device and the method for adjusting the same according to the present invention, an image post-processing machine with a decoded video stream is provided, and only a good image processing effect can be obtained, and the direct decoding is avoided. 1 ^Cotton image as a basis for image repair caused by image discontinuity, ^ 守 f is not high in its required complexity. Therefore, according to the invention, the adjustment method is very suitable for computing resources is quite limited Mobile communication device.
=本發明之優點與精神可以藉由以下的發 附圖式得到進一步的瞭解。 叮心久尸/T 【貫施方式】 本發明提出一種行動通訊裝置及其影像 一視訊街的 此實，裝置。在 圖。如圖-所示，行動能方塊 取模組14、一計算模組16及—修^ 擷 別就行動通訊裝置i所包含ς松、，'且18 °接下來，將分 進行詳細的介紹。 杈、'且間之關連及其具有之功能 很有可能因為訊號;訊解碼的過程中， 流之某些解碼後影像中出，¥致在該視訊串 續的視訊串流，嚴重地，二區域’因而造成不連 行動通訊裝置！中之_曰，用:欣員影片之感受。因此， 視訊争流t之一目前影、否;功用即在於判斷一解媽後 於H.264视訊壓縮標準疋^ 3 —錯誤區域。舉例而言， ，^稭由檢查—區塊的標頭(header) 9 201004366 錯 =;區塊是否為—錯誤區塊，藉㈣ 斷影像是否包含. 視訊tidefB解碼f視辦流可以是一蝴^ 通訊裝置所需之低功耗%2^^以滿足行動 務不中斷等特殊要求。 令易接收及網路切換服 —在此實施例中，擷取模組14係電 若判斷模組12之判斷結果絲 ^^且u。 與位於該錯誤區域附近之一鄰近區域相= 一可以是 鄰近據該The advantages and spirit of the present invention can be further understood by the following drawings.叮心久尸/T [Continuous application method] The present invention provides a mobile communication device and an image thereof. In the figure. As shown in the figure, the action module takes the module 14, the calculation module 16 and the repair module, and the mobile communication device i contains the loose, ' and 18 ° next, and will be described in detail.杈, 'And the connection and its function is very likely because of the signal; in the process of decoding, some of the decoded images in the stream, the video stream in the video series, seriously, two The area 'causes no connection to mobile communication devices! In the middle of _ 曰, with: the feeling of the film. Therefore, one of the video contention t is currently shadowed or not; the function is to judge the error area of the H.264 video compression standard 一^3. For example, the stem is checked - the header of the block 9 201004366 wrong =; whether the block is - the wrong block, by (4) whether the image is included. Video defdefB decoding f can be a butterfly ^ The low power consumption required by the communication device is %2^^ to meet special requirements such as uninterrupted mobility. For easy reception and network switching service - in this embodiment, the capture module 14 is electrically determined if the judgment result of the module 12 is ^^ and u. Adjacent to one of the adjacent areas located near the wrong area = one may be adjacent to the
i:該推測資訊可以是與該錯誤區域相關之動K 並係^計算模組16, 中相對於該目前影像之—先前影像考轉可以是該視訊串流 訊串;ΐ來藉訊裝置"•該視 向f估算出該錯誤區域之推測附近的鄰近區域動態 向量以及-先前影像修正該錯誤^。里’亚根據該推測動態 由於本發明係利用Dvjg η夕 情形’並透過錯誤修正之方式將目==: 10 201004366 ;近：間由錯誤區域與其 =此範例僅考慮錯誤區絲之1方: 麥考影像24中之對應區站27相 2中之錯5吳區域26與 即有所不同。因此，;之相對位置 進一=割，可將這些鄰近區域 鄰近區域被切割成四個區塊，並中吳區域％左方之 26之_域至於:方= 可被視為錯誤ii兩則維持房來的大小不變，均 1㈣、8xl6、8x8、8x4、4:C區塊可供選擇(16X16、 Si割成她塊’故該鄰近區 要性=目=:個誤區域所具有之重 向量。在此範例巾，假^、上·之方式得到—組新的動態 11 201004366 以 根據上述方法， 由得錯誤區域26上方區域之動態向量_可 mv2 = (mV21*1+mv2糊。 同理，錯誤區域 泞# β . 一 工區域之動態向量mv4可以由下列 方程式求得： mv44*2)/6。 -v4 = (mv4I*i+mv42*1+mv43%2+ 數，即可得到在袁考f 彳對此四個動'悲向量取其中位 量猜〇，可由下列中之對應區域27的推測動態向 nw〇 = median(mVl，mv2，mv3，mv4)。 r4 恶向1可以表示-影像區域之移動特性，廿拉以 侍知该影像區域在時域上盥夂 /；^抄動知性，並措以 置，經由動態向量估測後所得狀^之相對位 區域在時域上與之前畢彡傍^ 二動t向里可代表錯誤 錯誤區域進行修正。 、〗 ，並利用推測動態向量對 由於解碼器進行解碼時，通常合 , 像作為參考解碼之依據，因此張影 前影像中定位出對應於3〜你i爾向1可以在先 並將該對應區域之:雉像^料搬=誤f ^的對應區域， 的位置’藉以改善影像之口、^'目雨影像之錯誤區域 ^相同位置之區域素前; 區域的位置所造成影像不連續之現象，錯誤 之特性，根據本發明之影像處理效果^ 有動態 得到高品質之視訊影像。&打大&改善此—現象， 12 201004366 如圖三所示，行動通訊裝置1可以進一步包含接收模組 10及解碼模組20。實際上，接收模組10可以包含一天線。 在此實施例中，行動通訊裝置1之接收模組1〇所接收之一視 訊串流可能包含了相當多張連續播放的影像。舉例而言，若 行動通訊裝置1所接收之視訊_流係透過DVB_H傳輸技術 傳送，由於DVB-Η傳輸技術採用H.264視訊壓縮標準，故每 秒可傳送高達30張影像至行動通訊裝置1。 在此實施例中，解碼模組20係電連接至判斷模組12， 其功用在於將一原始視訊串流解碼後產生該解碼後視訊串 /瓜。κ際上，解碼模組20可以是一 PI.264視訊串流解碼器。 由於§亥H.264視讯串流解碼器係採用H.264視訊壓縮標準對 一視訊_流進行壓縮，因此能與同樣採用H264視訊壓縮標 準的DVB-Η傳輸技術彼此配合。 圖四係繪示H.264視訊串流解碼程序之一範例。在此例 中，經過11264解多工器所擷取出之視訊資料為一二位元 流，假設，二位元流為0000100〇111〇〇1〇1111〇11〇1。該位元 μ包含了母張影像之參數特性及壓縮資料，經由接下來的 Η.264解碼流程以獲得重建之影像。 如圖四所示，首先，Η.264解碼器執行一可適性紋理變 數長度解碼（Context Adaptive Length Dec〇dhg, CAVLD)之步驟賴二位元鱗換成—麟資料。 代-it，量化之步驟，H.264解碼器可將該頻 域貝枓中之係數作適g地放大以符合該編碼器之編碼技術。 ^後’ _域貝料可猎由—餘_散餘弦反轉換办· 之步驟被反轉換成空間域之係數。 上达的反lb及整麟散餘弦反難之步驟均屬於反轉換 (inverse transform)之步驟。 201004366 '取ί、’Η]264解碼器配合空間域之影像預測技術或時門 域之動恶補償技術’可獲得完整之空間像素資訊，亦二 者於行動通訊裝置之螢幕上所見之視訊影像。、 藉由Η.264視訊壓縮技術，行動通訊裴置丨可以 當小的視訊串流提供使用者極佳的視訊品質，因此，使用^ 根據本發明之第二具體實施例為一種影像調整方 此實施例中，該影像調整方法可應用於一行動通訊 、， 且該行動通訊裝置可具有解碼及播放一視訊串流之°功^。亚 ，圖五鱗轉雜驢方法之流 ，該方法執行步驟S1°，將-原始視訊串流 Ιΐΐΐ碼後視訊串流。其中該原始視訊，流細亥解 碼後視乱辛流均包含複數張影像。 、/解 實際上，該方法在步驟Sl〇中所執行解 過該行純訊裝置中之- η.264視訊串流解成1 解碼後視訊㈣可以是-傾歧_崎顧^^该 由於訊號傳輸或解碼器之不穩定，可能導 後之影像中產生錯誤的影像區域„ 解; =判斷該解碼後視訊串流中之一目前 “旦f ,標縣eader)得知該區塊是否為-錯誤區塊，曰^ 判Wf衫像是否包含一錯誤區域。 精此 若步驟S11之判斷結果為是，該方法執 ，於該錯誤區域之一鄰近區域資訊。實際上1 2二 貪訊係與該錯誤區域之-鄰近區域相騎—動態向^、。1區域 14 201004366 對應於該錯誤區域鄰近區域資訊計算 该錯誤區域相關之一推測動態向量广不，δ亥推洌資訊係與 參寺2及該 像係該解碼後視訊串流中相對於影 ㈣ίΐ於ί前技術，根據本發明之行動通訊裝置及龙％ ⑽到訊串流之影像後處理 作為影像修補:依據所造 之運算複雜度不高，因此，根據本發明之影Ξ μ正方去非吊適用於運算資源相當有限的行動通訊裝置。 =由以上較佳具體實施例之詳述，係希望能更加清楚描 ^本叙明之特徵與精神，而並非以上述所揭露的較佳具體實 ^^來^本發明之範疇加以限制。相反地，其目的是希望能 /1¾蓋各種改變及具相等性的安排於本發明所欲申請之專利 圍的範疇内。 i. 15 201004366 【圖式簡單說明】 圖一係繪示根據本發明之第一具體實施例之行動通訊裝 置的功能方塊圖。 圖二係繪示計算推測動態向量之一範例。 圖三係繪示圖一所示之行動通訊裝置的詳細功能方塊 圖。 圖四係繪示H.264視訊串流解碼程序之一範例。 圖五係繪示根據本發明之第二具體實施例之影像調整方 法的流程圖。 【主要元件符號說明】 S10〜S15 :流程步驟 1 :行動通訊裝置 10 :接收模組 12 :判斷模組 14 :擷取模組 16 :計算模組 18 :修正模組 20 :解碼模組 22 :目前影像 24 :參考影像 26 :錯誤區域 27 :對應區域 28 :背景圖案 mv0〜mv44 :動態向量 16i: the speculative information may be related to the error area and the computing module 16 may be the video stream stream with respect to the current image; the borrowing device " The visual direction f estimates the neighboring region motion vector near the speculation of the error region and the previous image corrects the error^. In accordance with the speculative dynamics, the present invention utilizes the Dvjg η situation and through error corrections ==: 10 201004366; near: between the error region and its = this example only considers the wrong region: The error in the corresponding phase 27 phase 2 of the McCaw image 24 is different from that of the Wu area 26. Therefore, the relative position of the adjacent area is cut into four blocks, and the adjacent area of the adjacent area is cut into four blocks, and the _ domain of the left side of the middle Wu area is as follows: square = can be regarded as error ii and two are maintained The size of the room is unchanged, and all 1 (four), 8xl6, 8x8, 8x4, 4: C blocks are available for selection (16X16, Si cut into her block), so the neighboring area has the meaning = the target =: the wrong area has the weight Vector. In this example towel, false ^, on the way to get - a new dynamic 11 201004366 to according to the above method, from the error region 26 above the dynamic vector _ mv2 = (mV21 * 1 + mv2 paste. Reason, error area 泞# β . The dynamic vector mv4 of the work area can be obtained by the following equation: mv44*2)/6. -v4 = (mv4I*i+mv42*1+mv43%2+ number, you can get In Yuan Kao f 彳, the four dynamic 'sorry vectors are taken as the median guess, and the speculative dynamics of the corresponding region 27 can be nw〇=median(mVl,mv2,mv3,mv4). r4 Representing the moving characteristics of the image area, so that the image area is in the time domain 盥夂/;^ copying the knowledge, and taking measures, through the dynamic direction After the estimation, the relative bit area of the obtained shape is corrected in the time domain and the previous two-dimensional t-inward can represent the error error area. 〖, and the speculative dynamic vector pair is usually decoded by the decoder. In combination, as a basis for reference decoding, the corresponding image in the pre-image is corresponding to the corresponding area of 3~1, and the corresponding area: Position 'to improve the mouth of the image, ^' the wrong area of the rain image ^ the same position of the front area; the position of the area caused by the phenomenon of image discontinuity, the characteristics of the error, the image processing effect according to the present invention ^ has dynamic As shown in FIG. 3, the mobile communication device 1 can further include a receiving module 10 and a decoding module 20. In fact, the receiving module 10 can be used as a high-quality video image. In this embodiment, one of the video streams received by the receiving module 1 of the mobile communication device 1 may contain a relatively large number of continuously played images. For example, if the mobile communication device is installed The received video stream is transmitted via the DVB_H transmission technology. Since the DVB-Η transmission technology uses the H.264 video compression standard, up to 30 images can be transmitted per second to the mobile communication device 1. In this embodiment, decoding The module 20 is electrically connected to the determining module 12, and the function is to decode the original video stream to generate the decoded video string/melon. On the κ, the decoding module 20 can be a PI.264 video stream decoding. Since the H.264 video stream decoder compresses a video stream using the H.264 video compression standard, it can cooperate with the DVB-Η transmission technology that also adopts the H264 video compression standard. Figure 4 shows an example of the H.264 video stream decoding procedure. In this example, the video data extracted by the 11264 demultiplexer is a one-bit stream, assuming that the two-bit stream is 0000100〇111〇〇1〇1111〇11〇1. The bit μ contains the parameter characteristics and compressed data of the parent image, and the reconstructed image is obtained through the following Η.264 decoding process. As shown in Fig. 4, first, the Η.264 decoder performs a step of Context Adaptive Length Dec〇dhg (CAVLD) to convert the two-bit scale into a lining data. The generation-it, quantization step, the H.264 decoder can scale the coefficients in the frequency domain to fit the coding technique of the encoder. After the ^ _ domain can be hunted by the - _ _ cosine inverse conversion process, the steps are inversely converted into the coefficients of the spatial domain. The steps of the anti-lb and the lining of the lining are all steps of the inverse transform. 201004366 'take ί, 'Η 264 decoder with space domain image prediction technology or time domain domain dynamic compensation technology' to obtain complete spatial pixel information, also the video image seen on the screen of the mobile communication device . With the 264.264 video compression technology, the mobile communication device can provide the user with excellent video quality when the video stream is small. Therefore, the second embodiment of the present invention is an image adjustment method. In an embodiment, the image adjustment method can be applied to a mobile communication, and the mobile communication device can have the function of decoding and playing a video stream. The flow of the method of sub-scale and entanglement is performed. The method performs step S1°, and the original video stream is streamed and video streamed. In the original video, the stream rushing and decoding the symplectic stream includes a plurality of images. Actually, the method is executed in step S1, and the η.264 video stream is decoded into 1 after decoding. The video (4) may be - divergence _ _ ^ ^ ^ The instability of the signal transmission or decoder may result in an erroneous image area in the resulting image. _ Solution; = determine one of the decoded video streams, currently "den f, standard eader", to know if the block is - Error block, 曰^ Determine if the Wf shirt image contains an error area. If the result of the determination in the step S11 is YES, the method performs the neighboring area information in one of the error areas. In fact, the 1 2 2 Corruption Department rides with the adjacent area of the wrong area - dynamic to ^. 1 region 14 201004366 Corresponds to the error region neighboring region information to calculate the error region related to one of the speculative dynamic vectors, the δ 洌 洌 洌 information system and the temple 2 and the image system in the decoded video stream relative to the shadow (four) ΐ According to the prior art, the mobile communication device and the image post-processing of the video stream according to the present invention are used as image repair: the computational complexity is not high according to the method, and therefore, the image according to the present invention is not square. The crane is suitable for mobile communication devices with relatively limited computing resources. The features and spirits of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. Rather, it is intended to cover various modifications and equivalent arrangements within the scope of the invention as claimed. i. 15 201004366 [Simplified description of the drawings] Fig. 1 is a functional block diagram showing a mobile communication device according to a first embodiment of the present invention. Figure 2 shows an example of calculating a speculative dynamic vector. Figure 3 is a block diagram showing the detailed function of the mobile communication device shown in Figure 1. Figure 4 shows an example of the H.264 video stream decoding procedure. Figure 5 is a flow chart showing an image adjustment method according to a second embodiment of the present invention. [Main component symbol description] S10~S15: Flow step 1: Mobile communication device 10: Receive module 12: Judgment module 14: Capture module 16: Calculation module 18: Correction module 20: Decoding module 22: Current image 24: Reference image 26: Error area 27: Corresponding area 28: Background pattern mv0~mv44: Motion vector 16