經濟部中央標準局員工消费合作社印裝 A7 B7 五、發明説明（1 ) 【產業上之利用範園】 本發明係有關畫像處理技術，更甚者逋用於動畫像之 壓縮解壓方法，尤其逋於有關有效之技術，例如將再生之 畫像和其他之晝像合成之時，將#要之嵌入倌軿，同時記 錄或傅送的壓縮解壓方法及由含嵌入信號之影像信號，將 嵌入倌號除去合成其他之畫像之影像信號加以输出之影像 信號處理裝置者。 【以往之技術】 以往之技術中，經常使用將動畫像與其他畫像合成時 ，於清一色之背景，配上被攝《的狀態加以攝影，由贺景 之迮辱嵌入信號（顯示是否爲背景之信號），加以合成 之方法。 【發明欲解決之課題】 但是，如上述以往之合成方法中，將動晝像高效率編 碼（資料懕縮）解碼之時，不一定會恢復成原來的畫像， 嵌入信號無法正確如以再生之時.，.有經由嵌入信號，置換 需置換成其他畫像之處（之後稱之爲背景），相反地不加 置換之處會被加以置換之問題點。 本發明之中，俦提供除去如上述之以往技術的缺點， 正確之嵌入信號則被再生且可高效率編碼之動晝像的壓 縮解懕方法者。 本紙張尺度適用中國國家捸準（CNS )八4洗格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁)Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (1) [Industrial Use Garden] The present invention is related to image processing technology, and even more 逋 compression and decompression method for animation images, especially 逋For effective technologies, such as when combining a reproduced portrait and other daytime images, # 要 之 is embedded into the 倌 軿, and the compression and decompression method for recording or sending simultaneously and the video signal containing the embedded signal will be embedded into the 倌An image signal processing device that removes the image signals from other images and outputs them. [Previous technology] In the past technology, when synthesizing animated images with other portraits, they were often photographed on a clear background with the state of being shot, and the signal was displayed by He Jingzhi's shame (showing whether the background signal) , The method of synthesis. [Problems to be Solved by the Invention] However, when the high-efficiency encoding (data shrinking) of a moving day image is decoded in the conventional synthesis method described above, the original image may not be restored, and the embedded signal cannot be reproduced correctly. Sometimes, there is a problem that the replacement needs to be replaced with another image (hereinafter referred to as the background) through the embedded signal. On the contrary, the place without replacement will be replaced. In the present invention, there is provided a compression and decompression method that removes the shortcomings of the prior art as described above, and reproduces a correct embedded signal and can encode a moving day image with high efficiency. This paper size is applicable to China National Standards (CNS) 8 4 wash (210X297 mm) (Please read the precautions on the back before filling this page)
經濟部中央標準局員工消费合作社印製 A7 B7 五、發明説明（2 ) 【爲解決課題之手段】 爲解決上述之課題，本發明係於影像資訊所示得値之 範園中，設置進行切離顯示是否得原來之影像信號値和背 景之嵌入信號値之變換步驟或手段，和與編碼時的變換進 行相反變換的步驟或手段之同時，由賫料壓縮之後解壓之 畫像，將分離影像信號和嵌入信號之處理，以閾値加以進 行者。 又，期望係參照兩鄰之畫素嵌入信號，該嵌入信號之 任一者爲顯示背景之鍵信號之時，將現在畫素之鍵信號變 更爲背景顯示之値。 【作用】 分離通常做爲影像僧號和嵌入信號之信號.辛之距離 ，加以編碼，可容易由資料壓縮後之解Μ畫像分離影像侰 號和嵌入信號，可正確再生影像信號和嵌入信號。而且， 經由使用準備閾値，可更正確分離影像信號和嵌入信號， 更且，參照兩鄢之畫素嵌入信號，該嵌入侰號之任一者爲 顯示背晕_.之嵌入信號時，經由將現在之畫索的嵌入信號隻 更爲背景顯示値，可再生背景和前景臨界之正確嵌入信號 【實施例】 以下，將本發明之實施例以圖加以說明。 爲使說明簡易化，以下係對顯示影像之一瘇素爲8位_ 本紙張尺度逍用中國國家揉準（CNS) Α4規格（2iOX297公釐） —. .ri 裝-- (請先閱讀背面之注意事項再填寫本萸) -訂 之線 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明（3 ) 琴之寒MM的實施例加以說明。一畫索之資訊置爲8位元 以外之時，亦可以同樣之方法實施本發明。 圖1係顯示不含嵌入信號，分配以往之影像信號之位 元者。此影像信號係如圇示持有8位元之資訊量，由上位 位元 11 具有 ly7，ly6，ly5，ly4.，l.y3， ly2，lyl，ly〇之各位元者。以往，將影像信號 記錄或傅送時，對將該影像僧號和其他影像合成之用途而 言，並未加考量。即，未準備將使用於合成畫面之嵌入僧 號或傳送之方法。 本發明之中，未加上以往記錄·傅送方式之變更，而 且爲使將嵌入信號可記錄·傅送，將影像信號資訊之一部 份加以削減，在此將嵌入信號做爲記錄之方式。嵌入信號 係可以複數位元加以構成，但是晝像合成之時，只需有是 曼_與其他影僂置.換之資訊即可，可以1位元加以瀹成。在 此，本實施例中，將影像信號中最不皇薆之最下位位元 1y〇加以削減。但是，影像畫像係非限定於8位元，可 爲任意之位元數爲佳。 於圖2之中，顯示含逋用前述之方法時之嵌入信號的 影像侰號之各位元分配者。影像資訊係通常呈龐大之資料 量之故，將影像加以記錄·傳送時，多進行資料壓縮，將 影像賫料壓縮解應時，並不一定會恢復成原畫像。通常之 影像信號之時，即使下位側之數位元有衔變化，對影像之 再生無多大之問題。但是，嵌入信號有所變化之時，有可 能#、再生前景和背景。在此，此實施例之中，資料應縮解 本紙張尺度適用中國國家樣率（CNS)A4规格（ 210X297公釐） .Λ - (請先閲讀背面之注意事項再填寫本頁) •裝 :訂 •ί線 經濟部中央標隼局員工消费合作社印製 A7 B7五、發明説明（4 ) 應之時，將最不易變化之最上位位iT2kO之位置，分配 嵌入信螨。 更且，將嵌入信號顯示爲背_景値之時，其畫索係於畫 像合成之時，其他影像和β換之故，無醫該畫索之影像賫 既。此時，於影像信號之位元2 y 7〜2 y 1，記錄値0 朦，可使影像信號和嵌入信號之距離分離，將影像信號資 料壓縮解壓時，對原本之畫像，有所誤差時，可再生正確 之嵌入侰號。 根據上述之位元分配，使用嵌入信號含於影像信號中 ，將記錄·傳送時之編碼手纊加以說明。在此，決定顯示 背景之嵌入信號i値0 (位元2 k 0 = 0)，顯示前景之 嵌入信號値爲_丄（位元2 k 0 = 1 )。如此進行之時，本 發明之一般性並不消失。這是因爲此分配即使被反轉，仍 可以同樣之方法實施本發明之故。因此，本實施例之中， 如前所述，可決定嵌入信號之意義。 如圖3所示，任意影像之1畫素影像賫訊3 0 1係將 資訊置呈8位元時，可取得0〜2 5 5之値，由該影像賫 訊削減1位元之影像資訊3 0 2係可得0〜1 2 7之値。 .前述畫素相當於影像中之前景時，做爲嵌入信躭具有値1 ，於最上位位元呈1，根據含有前述嵌入信號之影像信號 之各位元分配，影像信號則收納於値1 2 8〜2 5 5之範 園3 0 3。前述晝索相當於影像中之背景時，做爲嵌入信 號具有値0之同時，於影像合成時則不酱要、。影像資訊亦 決定呈0之故，背景之影像倌猇3 0 4係呈値0，f〆〜 (請先閲讀背面之注意事項再填寫本頁) 裝. :訂 '線 本紙張尺度逋用中國國家標準（CNS ) A4规格（210X297公釐） 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明（5 ) 1 2 7値之資訊係不存在於編碼之時。 對前述影像信猇而言，賫料懕縮解壓時，於與原畫像 之間產生誤差，於編碼之時則不存在之得1〜1 2 7値之 影像信號則解碼而出現。在此，將由原本之影像信號具誤 差之前述影像信號中，分離嵌入信號和影像信號之解碼之 手績，使用圖4加以說明。 如前所述，編碼之階段中，做爲値而言，不可能取得 1〜1 2 7的範圍。但是，將晝像資料壓縮記錄*傅送〈 將該賫料解壓時，產生與原畫像之誤差，會出現做爲原本 之前景影像資訊4 0 3，取得値1 2 8〜2 5 5的資訊得 1 2 7以下之値時4 Q 1，或做爲背景之嵌入信號，取得 値0的賫訊爲取得1以上之値時4 0 2。 於解碼之前，決定分離顯示背景之嵌入信號和前景影 像資訊之閾値4 0 0時，經由以該閾値將顯示背景之嵌入 信號和前景影像資訊加以'、削鹆4 0 7，可分離顯示背景之 嵌入僭號4 J 6，和禪i前景會JLAjSJE之餐像束訊 令0 4。爲前景之時，將具有顯示前景之値1的嵌入信號 (位元2 k 0 )加以除去，再展開呈2倍之時，可復原原 本之影像資訊。使用分離嵌入信號和影像信號之閾値，係 呈選擇6 4，9j，1 2 8等値時，對馬上編碼之影像信 號而言，於解碼之時可加以賙整。 如上所述，對將畫像資料壓縮解壓之時的影像信號變 化，和於其情形會產生空間現象而言，使用圖5加以說明 。圖5係顧示於前景5 0 4和背景5 0 3中，其範圈爲畫 本紙張又度適用中國國家標準（CNS〉A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 裝 :訂 A7 B7 五、發明説明（6 ) 像合成之時，具顯示與其他影像置換之嵌入信號的影像 5 0 2，和該影像中之任意行5 0 1之影像信號m平之圓 0 於圖5之中，著眼於賫料壓縮前之原畫像影像信號 5 0 5時，範園5 Ob-5 0 c間及5 0d_5 0 e間係 呈前景之故，具W1 2 8以上之値。前述以外之値的範圍 50a — 50b，50c - 50d，50e — 50f .係呈 背景之故，取顯示爲背景之嵌入僧號ja値i。賫料壓縮解 壓之影像信號5 0 6係具有對原畫像之影像信號的誤差。 爲回避誤差所成資訊之錯誤，設定逋當之閩値5 0 9〜 5 1 1，使用此閎値，分__嵌入信號和影像信號。但是， 背景和前景之臨界中，會產生無法分離正確嵌入信號和影 像信號之5. 0 7，5 JI1之情形。 經濟部中央標準局員工消費合作枉印製 (請先《讀背面之注意事項再填寫本頁) 此時，做爲調整嵌入信號手段，令是否背景嵌入信號 之擴張，於解碼時可加以選擇。背景嵌入信猇之擴張係將 畫像資料横方向掃瞄地，參照左右兩鄰之畫像嵌入信號， 霞JL入信ϋ之任一者皆遞時，令現在 號亦顯示背景値者。由此，於背景和前景之 臨界上，可調整誤再生之嵌入信號。 Μ 6係顯示將本發明方法加以具髗化回路構成之一例 者。b圖6之中，嵌入信號許可信號係顛示输入影像信號 含有嵌入信號者，或不含嵌入信號的通常影像信號之信號 ，嵌入信號擴張許I僧Jft係指定嵌入侰號擴張之有無的信 號，.興値切am鲅係爲切換分離嵌入信號和影像資訊所使 本紙張尺度遑用中國國家橾隼（〇犯）六4規格（210><297公釐） 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS > A4洗格（210X 297公釐） A7 B7_ 五、發明説明（7 ) 用之閾値所使用之侰號，此等之信號係處理前述影像侰號 者所醫得知之賫訊者。因此，前述信號係必需除输入影像 信號之外加以输入。 以下，沿資料之流程加以說明/嵌入信號許可信號爲 顯示不許可（输入影像信號不含嵌入僧號）之時，输入之 影像信號係以影像信號切換回路6 0 5加以選擇，以延遲 回路6 0 7加以延遲，直接供給至YC — RGB變換回路 6 1 1 ，合成回路6 1 2。此時，蠛入侰罅切換回路 6 0 6之中，經由顛示不許可之嵌入僧號許可信號，選擇 顯示前景之嵌入信號時，以延遲回路6 0 8加以延遲之後 ，输入至下段之嵌入信號擴充回路6 1 0。前述嵌入信號 係以延遲回路6 0 9再加以延遲，輸入至嵌入信號擴張回 路610之故，該回路之3個输入係呈顯示所有前景之嵌 入信號，嵌入信號擴張許可信號不具意義，因此，顯示前 景之嵌入信號則直接供給至合成回路612。 嵌入信號許可侰號顯示許可（輸入影像信號含有嵌入 信猇）之時，8位元之输入影像信號係根據前述解碼之手 績，使用閾値分離嵌入信號和影像信號，首先，以削波回 路6 0 3，將影像倌號削波呈1 2 8〜2 5 6之値。此時 ，輸入影像信號具有1〜1 2 7之値時，削波回路6 0 3 係視之爲1 2 8。削波之影像信號係以修正回路6 0 4 , 1 2 8〜2 5 6之値則對應0〜2 5 4加以修正。此修正 係以削波回路6 0 3所削波之値，減去「1 2 8 j ，進行 2倍之演算。 -10 - (請先W讀背面之注意事項再填寫本頁) .裝. -訂 A7 B7 五、發明説明& ) 接著，以影像信號切換信號6 0 5，選擇前述修正後 之影像資訊，以延遲回路6 0 7加以延遲，供給於YC — RGB變換回路6 1 1，由Y信號，C信號變換爲RGB 信號。然後，根據由上述嵌入信號擴張回路610输出之 嵌入信號，於合成回路6 1 2，進行與背景畫像信號合成 ，输出至C RT等之監視裝置。 經濟部中央樣準局貝工消费合作社印製 (請先閲讀背面之注意事項再填寫本頁) 嵌入信號許可僧號顯示許可之時，同時地，進行由輸 入影像僧號之嵌入信號的抽出。即，输入影像信號係以比 較回路6 0 2比較閏値。此閾値係於閾値切換回路6 0 1 中，使用經由預先指定之閾値切換信號選擇之値。比較回 路6 0 2係比較输入影像侰號和閾値之結果，输入影像信 號較閾値爲大之時，输出顯示前景之嵌入信號，输入影像 信號較閾値爲小之時，输出顯示背景之嵌入信號。該嵌入 信號係以嵌入信號切換回路6 0 6加以選擇，採直接輸入 至以嵌入信號擴張回路6 1 0，或延運回路6 0 8或延遲 回路6 0 8和6 0 9加以延遲，输入至嵌入信號擴張回路 6 1 0 〇 此時，延遲回路6 0 8之輸出爲現在之畫素嵌入信號 。輸入影像信號爲掃瞄横方向地加以送出之時，嵌入信號 切換回路6 0 6之输出，和延運回路6 0 9之输出呈左右 兩鄰之畫索嵌入僧號。嵌入信號擴張回路610之中，參 照左右兩鄰之晝素嵌入信號和現在之畫索嵌入信號，僅於 皆爲顯示前景嵌入信號時，输出顯示前景之嵌入信號，於 本紙張尺度適用中國國家揉準（CNS ) A4規格（210X297公羡） -11 - A7 B7 五、發明説明^ ) 其他之時，經由输出顯示背景嵌入信號，進行背景之嵌入 信號之擴張。 圖7係顯示將圖6實施例之回路（記爲再生回路）， 使用於使用根據稱之爲MPEG (Mo v i n g Picture Expert Group)之視訊規 格的MPEG放影機（動態晝像解碼裝置）1 〇之動畫再 生系統的實施例方塊圚。 經濟部中央揉準局貝工消费合作社印装 (請先閲请背面之注意事項再填寫本頁) 此實施例之動畫再生系統係由如圖7所示，讀取於 CD-ROM應縮，編碼記憶之動晝資料之CD囅動裝置 1，和由讀取資料分離畫像資料和聲音資料之同時，解讀 控制資訊之微電腦2，和將分離之聲音資料加以解碼之 MPEG聲訊解碼器3，和將分離之動盡資料加以解碼之 MPEG視訊解碼器1 0，和如圓6所示所構成之影像僧 號處理回路6 0所構成，以MPEG視訊解碼器1 0加以 解碼之動畫信號，則介由本實施例之影像信號處理回路 6 0，送至CRT顯示裝置等之監視器，或解碼之聲音信 號係送至視訊擴大器。此時，背景畫像信號係例如可由微 電腦2加以賦予。 然而，4係上述微電腦2所執行之程式或收納固定資 料之讀取專用記憶酱，5係提供微電腦2之作業範園可隨 時讀取寫入之記憶體，20係連接上述MPEG視訊解碼 器1 0，將解碼之晝像資料暫時保持之緩衝器記億《(圖 框記憶健）。 以上本發明人所成之發明，雖根據實施例加以具體說 本紙張尺度適用中國國家標率（CNS ) A4规格（210X297公釐） -12 - 經濟部中央標準局貞工消费合作社印裝 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公嫠） A 7 _B7____ 五、發明説明L ) 明，但是本發明並非限定於上述實施例，只要在未脫離之 範園，可進行種種之變更。例如上述實施例中，雖以上無 輸入影像信號爲數位信號之時加以說明，但输翰入影像信 號爲類比僧號之時，可適用本發明。 【發明之效果】 如以上之說明，根據本發明之時，無薔變更進行以往 之資料壓縮解壓的記錄或傳送方式地，可將使用於影像之 合成之嵌入信號做爲影像僧號之一部加以記錄·傅送，而 且，於資料壓鮪解壓之時，不受產生誤差之影響，可將嵌 入僧號正確地加以再生。 【圖1】 顯示不含通常之嵌入信號之影像信號位元之分配圖。 【圖2】 顯示削減影像資訊之一部，含有嵌入信號時之影像信號位 元分配圖。 【圖3】 顯示對將嵌入信號含於影像信號中，記錄·傳送時編碼之 手績圖。 【圖4】 顯示由資料壓縮解壓影像僧號，分離嵌入信號和影像僧號 時之解碼之手績圖。 【圖5】 -13 - (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局貝工消費合作社印裝 A7 B7 五、發明説明“） 顛示由賫料壓縮解壓影像信號，分離嵌入信號和影像侰號 時，問題之空間現象圖。 【圖6】 顯示具髏化本發明方法回路之實施例的方塊圖。 【圖7】 使用將逋用本發明之回路，使用將動畫解碼MPEG視訊 放影機之動盡再生系統時之一實施例的方塊圖。 【符號說明】 1 y 0〜1 y 7 :影像資訊之各位元 2 y 1〜2 y 7 :影像資訊之各位元 2 k 0 :嵌入信號之位元 3 0 1 :原畫像之影像資訊 3 0 2 :削減1位元之影像賫訊 3 0 3 :含有顯示前景嵌入信號之影像賫訊 3 0 4 :顧示背景之嵌入信號 4 0 0 :閩値 4 0 1 :由賫料麈縮解壓之影像資訊之原畫像的誤差 4 0 2 :根據資料壓縮解壓，由顯示背景嵌入信號之原畫 像之誤差 4 0 3 :含潁示前景嵌入信號之影像資訊 4 0 4 :將嵌入信號分離之影像資訊 4 0 5 :再生之前景影像資訊 4 0 6 :再生縻示背景之嵌入信號 本紙張又度適用中國國家揉準（CNS > Λ4規格（210X297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂 -14 - A7 B7 五、發明説明) 4 Ο 7 :削波 5 Ο 1 :影像中之任意之一行 5 0 2 :含嵌入信號之影像 5 0 3 :背景 5 0 4 :前景 5 0 5 :原盡像之影像信號 5 0 6〜5 0 8 :資料壓縮解壓之盡像影像信號 5 0 9〜5 1 1 :分離嵌入信猇和影像信號之閾値 5 0 a〜5 0 f :影像之横方向位ff 601〜610:回路之構成要素 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印製 本紙張尺度適用中國國家棣準（CNS ) A4規格（210X297公釐） -15 -Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (2) [Means to Solve the Problems] In order to solve the above problems, the present invention is set up in a successful garden as shown in video information The steps or means to display whether the original video signal (値) and the embedded signal (背景) of the background are obtained, and the steps or means to perform the inverse conversion to the conversion at the time of encoding. And the processing of embedded signals is performed by threshold. In addition, it is desirable to refer to the pixel embedding signals of two neighboring pixels. When any of the embedded signals is a key signal for displaying the background, the key signal of the current pixel is changed to the background display. [Function] Separation is usually used as the signal of the image monk and the embedded signal. The distance of Xin is encoded and can be easily separated from the image M and the embedded signal by the compressed image. The image signal and the embedded signal can be reproduced correctly. In addition, by using the preparation threshold, the image signal and the embedded signal can be more accurately separated. Furthermore, referring to the pixel embedded signals of the two frames, any one of the embedded frame numbers is an embedded signal displaying back halo. The embedded signal of the current cable is only displayed in the background, and the correct embedded signal with reproducible background and foreground margins [Embodiment] Hereinafter, the embodiment of the present invention will be described with reference to the drawings. To simplify the explanation, the following is one of the displayed images: 8 bits _ This paper size uses the Chinese National Standard (CNS) A4 size (2iOX297 mm) —. .Ri Pack-(Please read the back first For the matters needing attention, please fill out this 萸)-Ordered by the Ministry of Economic Affairs, Central Standards Bureau, Consumer Cooperatives, printed A7 B7 V. Invention Description (3) The embodiment of Qin Zhihan MM will be explained. When a piece of information is set to other than 8 bits, the present invention can be implemented in the same way. Fig. 1 shows those who do not include embedded signals and assign bits of the previous video signals. This image signal is shown as holding 8 bits of information, and the upper bit 11 has ly7, ly6, ly5, ly4., L.y3, ly2, lyl, ly0. In the past, when recording or transmitting video signals, no consideration was given to the purpose of synthesizing the video monk and other images. That is, there is no method for embedding or transmitting a monk number used in a composite picture. In the present invention, the change of the conventional recording / fusing method is not added, and in order to make the embedded signal recordable / fusing, a part of the video signal information is reduced, and the embedded signal is used as the recording method. . The embedded signal can be composed of multiple bits, but when synthesizing the day image, it is only necessary to have the mann _ and other shadows set. For the information, it can be formed by 1 bit. Here, in the present embodiment, the least significant bit 1y0 of the least significant image in the video signal is reduced. However, the video image system is not limited to 8 bits, but may be any number of bits. In Fig. 2, the allocator of the image number containing the embedded signal when using the aforementioned method is shown. Image information is usually a huge amount of data. When recording and transmitting images, more data compression is performed. When the image data is compressed and compressed, the original image may not be restored. In normal video signals, even if the digits on the lower side change, there is not much problem in the video reproduction. However, when the embedded signal changes, it is possible to #, reproduce the foreground and background. Here, in this example, the data should be reduced. The paper size is applicable to the Chinese National Sample Rate (CNS) A4 specification (210X297 mm). Λ-(Please read the precautions on the back before filling this page) • Installation: Order • Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (4) When appropriate, the most difficult-to-change iT2kO position will be assigned to the embedded mites. In addition, when the embedded signal is displayed as the background image, its painting is at the time of image synthesis, and other images and β are replaced. Therefore, there is no medical image of the painting. At this time, at bit 2 y 7 ~ 2 y 1 of the video signal, record 値 0 ha, which can separate the distance between the video signal and the embedded signal. When compressing and decompressing the video signal data, there is an error in the original image. , Can reproduce the correct embedded 侰 symbol. Based on the above-mentioned bit allocation, the embedded signal is included in the video signal, and the encoding method at the time of recording and transmission will be explained. Here, the embedded signal i 値 0 (bit 2 k 0 = 0) which determines the display background and the embedded signal 値 値 (bit 2 k 0 = 1) which displays the foreground is determined. In so doing, the generality of the invention does not disappear. This is because even if this allocation is reversed, the present invention can be implemented in the same way. Therefore, in this embodiment, as described above, the meaning of the embedded signal can be determined. As shown in Figure 3, when the 1-pixel image of the arbitrary image 3 0 1 is 8 bits, the information can be obtained from 0 to 2 5 5 and the image information is reduced by 1 bit. 3 0 2 can be obtained from 0 to 1 2 7. When the aforementioned pixel is equivalent to the foreground in the image, it is 躭 1 as the embedded signal, which is 1 in the most significant bit. It is allocated according to the bits of the image signal containing the embedded signal, and the image signal is stored in 値 1 2 8 ~ 2 5 5 of Fan Yuan 3 0 3. When the aforementioned diurnal cable is equivalent to the background in the image, the embedded signal has 値 0 and it is not necessary when the image is synthesized. The image information is also decided to be 0, the background image 倌 猇 3 0 4 is 値 0, f〆 ~ (Please read the precautions on the back before filling in this page) Packing. National Standard (CNS) A4 specification (210X297 mm) Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) The information of 1 2 7 値 does not exist at the time of coding. For the aforementioned image signal, when the data is compressed and decompressed, an error occurs between the original image and the image signal that does not exist at the time of encoding. The image signal is decoded and appears. Here, from the original video signal in which the original video signal is erroneous, the decoding performance of the embedded signal and the video signal is separately described with reference to FIG. 4. As mentioned earlier, it is impossible to obtain a range of 1 to 1 2 7 as a base during encoding. However, when the daytime image data is compressed and recorded, it is sent to Fu <When the material is decompressed, an error occurs with the original image, which will appear as the original foreground image information 4 0 3 and obtain the information of 1 2 8 ~ 2 5 5 Obtain a time 4 Q 1 below 1 2 7 or use it as an embedded signal for the background. Obtain a time signal of 値 0 to obtain a time 4 0 2 of 1 or more. Before decoding, when the threshold of the embedded background signal and the foreground image information (400) is decided to be separated, the embedded background signal and the foreground image information of the displayed background can be separated by the threshold value, and the cutting background image can be separated by 407. Embed 僭 号 4 J 6, and Zeni Prospect Club JLAjSJE's Meal Bundle Order 0 4. When it is the foreground, the embedded signal (bit 2 k 0) with the display of foreground 値 1 is removed, and when it is expanded twice, the original image information can be restored. The thresholds used to separate the embedded signal from the video signal are selected to be 6, 4, 9j, 1 2 8 and so on. For the immediately encoded video signal, it can be rounded at the time of decoding. As described above, the image signal changes when the image data is compressed and decompressed, and the space phenomenon may occur in the situation will be described using FIG. 5. Figure 5 is shown in the foreground 504 and the background 503. The circle is the drawing paper and it is also applicable to the Chinese national standard (CNS> A4 specification (210X297 mm). (Please read the notes on the back before filling in (This page) Binding: order A7 B7 V. Description of the invention (6) At the time of image synthesis, an image 5 0 2 showing an embedded signal replaced with another image is displayed, and the image signal m 0 of any line 5 0 1 in the image is flat. Circle 0 is shown in Figure 5, focusing on the original image image signal 5 0 5 before the compression. Fan Yuan 5 Ob-5 0 c and 5 0d_5 0 e are in the foreground, with W1 2 8 The range of the above. The range of ranges other than the foregoing is 50a-50b, 50c-50d, 50e-50f. For the background, the embedded monk number ja 値 i displayed as the background is taken. The image signal of compression and decompression is 5 0 6 There is an error in the image signal of the original portrait. To avoid the error of the information formed by the error, set the appropriate value of 5 0 9 to 5 1 1 and use this to divide __ embedded signals and image signals. However, In the criticality of the background and foreground, there will be a situation where it is impossible to separate the correctly embedded signal from the image signal of 5. 0 7,5 JI1. Printed by the staff of the Central Bureau of Standards of the Ministry of Economic Affairs for consumer cooperation (please read the “Notes on the back side before filling out this page”) At this time, as a means of adjusting the embedded signal, the expansion of the background embedded signal can be selected during decoding. The expansion of the background embedding letter is to scan the portrait data in the horizontal direction, referring to the image embedding signals of the left and right neighbors. When Xia JL enters the letter, either, the current number also displays the background letter. Therefore, in On the criticality of the background and foreground, the embedded signal that is misreproduced can be adjusted. M 6 shows an example of the method of the present invention with a modified circuit configuration. B In Figure 6, the embedded signal permission signal indicates that the input image signal contains The embedded signal, or the signal of the normal video signal without the embedded signal, the embedded signal is extended. Xu Jeng is the signal that specifies the presence or absence of the embedded signal extension. Use this paper size to comply with the Chinese National Standard (0 offenders) 6-4 specifications (210 > < 297 mm). The paper size is printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. Use the Chinese national standard (CNS > A4 wash (210X 297 mm) A7 B7_ V. Description of invention (7) The threshold number used by the threshold signal, these signals are known to the person who processed the aforementioned image number) Informers. Therefore, the aforementioned signals must be input in addition to the input image signal. The following description will be given along the flow of the data / embedded signal permission signal is displayed not permitted (input image signal does not include embedded monk number), input The image signal is selected by the image signal switching circuit 6 0 5, delayed by the delay circuit 6 7, and directly supplied to the YC-RGB conversion circuit 6 1 1 and the synthesis circuit 6 1 2. At this time, enter the switching circuit 6 06, and select the display signal of the foreground through the embedded monk number permission signal, and then delay it with the delay circuit 6 0 8 and then input it to the lower embedding. Signal expansion circuit 6 1 0. The aforementioned embedded signal is delayed by a delay circuit of 609 and input to the embedded signal expansion circuit 610. The three inputs of this circuit are embedded signals showing all prospects. The embedded signal expansion permission signal is not meaningful. Therefore, the display The foreground embedded signal is directly supplied to the synthesis circuit 612. When the embedded signal permission number is displayed (the input image signal contains embedded information), the 8-bit input image signal is based on the decoding process described above. The threshold signal is used to separate the embedded signal and the image signal. First, the clipping circuit 6 is used. 0 3, clip the image number to 1 2 8 ~ 2 5 6. At this time, when the input image signal has a duration of 1 to 1 2 7, the clipping circuit 6 0 3 regards it as 1 2 8. The clipped image signal is corrected by the correction circuit 6 0 4, 1 2 8 ~ 2 5 6 corresponding to 0 ~ 2 5 4. This correction is based on the clipping of the clipping circuit 603, and subtracting "1 2 8 j, to calculate twice. -10-(Please read the precautions on the back before filling this page). -Order A7 B7 V. Description of the invention &) Next, the image signal switching signal 6 0 5 is selected, the aforementioned corrected image information is selected, delayed by the delay circuit 6 0 7 and supplied to the YC — RGB conversion circuit 6 1 1, The Y signal and C signal are converted into RGB signals. Then, based on the embedded signal output from the embedded signal expansion circuit 610, it is synthesized with the background image signal in the synthesis circuit 6 1 2 and output to a monitoring device such as C RT. Printed by the Central Bureau of Prototypes and Consumers Cooperatives (please read the notes on the back before filling out this page) When the embedded signal permission monk number is displayed, the embedded signal from the input image monk number is extracted at the same time. The input image signal is compared with the comparison circuit 6 0 2. This threshold is used in the threshold switching circuit 6 0 1, which uses a signal selected by a pre-specified threshold switching signal. The comparison circuit 6 0 2 compares the input image signal And threshold As a result, when the input image signal is larger than the threshold, the embedded signal showing the foreground is output, and when the input image signal is smaller than the threshold, the embedded signal showing the background is output. The embedded signal is added by the embedded signal switching circuit 6 0 6 Select, input directly to the embedded signal expansion circuit 6 1 0, or delay the circuit 608 or the delay circuits 6 0 8 and 6 0 9 to delay, and input to the embedded signal expansion circuit 6 1 0 〇 At this time, the delay circuit The output of 6 0 8 is the current pixel embedding signal. When the input image signal is sent out in the horizontal direction of the scan, the output of the embedded signal switching circuit 6 0 6 and the output of the extended transport circuit 6 9 are adjacent to each other. The picture is embedded in the monk's number. In the signal expansion circuit 610, the left and right neighbors of the daytime embedding signal and the current picture embedding signal are referenced, and only when the foreground embedding signal is displayed, the foreground embedding signal is output. This paper size is applicable to the Chinese National Standard (CNS) A4 (210X297). -11-A7 B7 V. Description of the invention ^) At other times, the background is embedded into the signal through the output display. The expansion of the embedded signal in the background. Figure 7 shows the circuit of the embodiment in Figure 6 (referred to as the reproduction circuit), which is used in an MPEG player (moving picture expert group) according to the video standard called MPEG (Moving Picture Expert Group) Day image decoding device) Example 1 of the animation reproduction system 圚. Printed by the Central Government Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives (please read the precautions on the back before filling this page) The animation reproduction system of this embodiment As shown in Fig. 7, the CD drive 1 reads the CD-ROM compression and encodes the moving day data, and the microcomputer 2 that interprets the control information while separating the image data and sound data from the read data , And an MPEG audio decoder 3 that decodes the separated audio data, an MPEG video decoder 10 that decodes the separated exhausted data, and a video monk number processing circuit 60 as shown in circle 6. The video signal decoded by the MPEG video decoder 10 is sent to the monitor of the CRT display device or the like via the video signal processing circuit 60 of this embodiment, or the decoded audio signal is sent to Video amplifier. In this case, the background image signal can be given by, for example, the microcomputer 2. However, 4 is a program executed by the above microcomputer 2 or a read-only memory sauce for storing fixed data, 5 is a memory that can be read by the microcomputer 2 at any time, and 20 is connected to the above MPEG video decoder 1 0, the buffer that temporarily holds the decoded day image data is recorded as 100 million (picture frame memory key). Although the invention made by the present inventor is specifically described according to the embodiments, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). -12-Printed paper by Zhengong Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs The dimensions are applicable to the Chinese National Standard (CNS) A4 specifications (210X 297 gong) A 7 _B7____ 5. Invention description L), but the present invention is not limited to the above embodiments, as long as it does not leave the model garden, various changes can be made . For example, in the above embodiment, although the above description is made when the input video signal is a digital signal, the present invention is applicable when the input video signal is an analog monk. [Effects of the Invention] As described above, according to the present invention, without changing the recording or transmission method of the conventional data compression and decompression, the embedded signal used for the synthesis of the image can be used as part of the image monk number. Record and send them, and when the data is compressed and decompressed, the embedded monk numbers can be reproduced correctly without being affected by errors. [Figure 1] Shows the allocation of video signal bits without the usual embedded signals. [Fig. 2] It shows a part of the image information reduction, including the image signal bit allocation when the embedded signal is included. [Fig. 3] This figure shows the hand record of the embedded signal in the video signal and the encoding during recording and transmission. [Fig. 4] A hand map showing the decoding of the video monk number by data compression and decompression, and the embedded signal and video monk number are separated. [Figure 5] -13-(Please read the precautions on the back before filling this page) Order printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by Aigong Consumer Cooperative A7 B7 V. Description of the invention When the embedded signal and the image signal are separated, a spatial phenomenon of the problem is shown. [Figure 6] A block diagram showing an embodiment of the method circuit of the present invention. [Figure 7] Using the circuit of the present invention, using animation A block diagram of an embodiment when decoding an exhaustive reproduction system of an MPEG video player. [Symbol Description] 1 y 0 ~ 1 y 7: each element of image information 2 y 1 ~ 2 y 7: each element of image information 2 k 0: Bits of embedded signal 3 0 1: Image information of original image 3 0 2: Image of 1 bit reduced image 3 0 3: Image of embedded image with foreground signal 3 0 4: Display background The embedded signal 4 0 0: Min 値 4 0 1: The error of the original image of the image information compressed and decompressed by the material 4 0 2: The error of the original image of the signal embedded by the display background based on the data compression and decompression 4 0 3: Image information with embedded foreground signal 4 0 4: Embedded information Separate image information 4 0 5: Regenerate the foreground image information 4 0 6: Regenerate the embedded signal of the background image This paper is again suitable for Chinese national standards (CNS > Λ4 specification (210X297 mm) (Please read the back Please fill in this page again) Order-14-A7 B7 V. Description of the invention) 4 〇 7: Clip 5 〇 1: Any one of the lines in the image 5 0 2: Image with embedded signal 5 0 3: Background 5 0 4: Foreground image 5 0 5: Original image signal 5 0 6 to 5 0 8: Data compression and decompression image signal 5 0 9 to 5 1 1: Separation of embedded signal and image signal threshold 5 0 a to 5 5 0 f: Horizontal position of the image ff 601 ~ 610: Components of the circuit (please read the precautions on the back before filling this page) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, This paper is printed in accordance with the national standards (CNS) A4 size (210X297 mm) -15-