JPS5820089A - Addition processor for x-ray television image - Google Patents
Addition processor for x-ray television imageInfo
- Publication number
- JPS5820089A JPS5820089A JP56119778A JP11977881A JPS5820089A JP S5820089 A JPS5820089 A JP S5820089A JP 56119778 A JP56119778 A JP 56119778A JP 11977881 A JP11977881 A JP 11977881A JP S5820089 A JPS5820089 A JP S5820089A
- Authority
- JP
- Japan
- Prior art keywords
- image
- frame
- addition
- ray
- inter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000033001 locomotion Effects 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 7
- 238000003745 diagnosis Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000015654 memory Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002594 fluoroscopy Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011410 subtraction method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はｘｓＩ診断像會イメージ・イｙ ｆｙシファイ
アｖ介してテ＆ｌＩｖジ冨ｙ力メツで撮−し得るＸｌ１
１ｆｖｖ？ｖａｙ画像の加算ａｇａｔｅ関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an Xl1 diagnostic imaging system that can be imaged with a large amount of power through an xsI diagnostic imaging system.
1fvv? It is related to the addition agate of the vay image.
近時、被検体（ｍ１者）ｖＸ＠透視して得られたｘｍｓ
所像なイメージ・イｙテンＶファイア（Ｉ −１） ｔ
’介して光学像変換し、この光学像をテ５しＶｆ＊ｙカ
メツでＩＩ＆膠してそＪＬＱヤＶジ％ンに表示して診断
医療を行うＸ線テレ１１’／ＩＩＩｙｙヌテムがＩ！！
目されて動る。Recently, the subject (m1) vX @xms obtained through fluoroscopy
Image Iy Ten V Fire (I -1) t
X-ray telephoto 11'/IIIyy Nutem performs diagnostic medical treatment by converting the optical image through the X-ray telephoto 11'/IIIyy Nutem, which converts the optical image through the TE5 and Vf*y camera and displays it on the JLQ and Vji%. !
Be noticed and move.
このイメーＶ・イｙテンＶファイア関接撮膠法６二よれ
ば、被検体に照射するｘｍΦ履＃−量が少なくてよ（、
Ｘ線管の負荷′Ｉｋ−軽減して小焦点撮影を行い得る等
の４ＩＩれた効果を奏する。この小焦点によるｘｍ拡大
撮＃決！用いて得られるイメージ・インテンシファイア
間接撮影像の解像度は、ｘｓｍ＊撮影像の解像度に匹敵
し、各種のＸｉ１診断隠療Ｃ二幅式く導入されるよ５に
なってきている。According to this image V-fire articulation method 62, the amount of irradiation to the subject is small (,
This provides four advantages, such as reducing the load 'Ik' on the X-ray tube and allowing small-focus imaging to be performed. #Decision to take xm magnification with this small focus! The resolution of the image intensifier indirect imaging image obtained using the XSM* imaging system is comparable to that of the XSM* imaging image, and has been introduced into various Xi1 diagnostic hidden therapy C dual-range systems.
例え＃ｆＸ纏直ＩＩＩ撮影では、両像１牧を得る為区：
、一般ｃ＊２ｗａＲ（ｌ ｌ Ｌ／）／）ｒｙ）ｅｘａ
ｗｅ＠検体に雇射するのｌ：対し、イメージ・インテン
レフアイフ間接撮参では１分間崗り７５ｍｌ５ｚｅｘｓ
＊ｖ厘射すればよイ＠ コ（Ｅ’ Ｘ ＃ ＊曝装置は
、テレＶ Ｎ ｗ ｙ■像１枚轟り、つまり１フレーム
−像画りに換算した場合６；は１／雪４鵬鳳１度と非常
に小宴いものである。とζろがこの！ ５ ｇ：１フレ
ーム画像織りのＸ線量が少ないが故ニ、七の一度および
ＩＩ／Ｎが共口低（、この結果、画像１枚４ｓｒ−十分
効果的な画像解析ができな〜’Ｊ：＊う不具脅がある。For example, in #fX Matsunao III shooting, in order to obtain both images in one size:
, general c*2waR(l l L/)/)ry)exa
We @ Inject the sample into the specimen: On the other hand, in the case of Image Intensify Eye indirect photography, it takes 75ml 5xs for 1 minute.
*If you shoot it, it's good (E' It is a very small party with Pengho 1 degree.And ζrogako! 5 g: Because the X-ray dose of one frame image weaving is small, 2, 7 no 1 degree and II/N are jointly low (, as a result, 1 image 4sr - Sufficiently effective image analysis is not possible~'J: *There is a risk of disability.
そこで従来、時間分解能の′れた透視システムでは、各
フレーム爾？ −〕〕Ｖ−ム闇Ｉおいて重み付は加算し
、その画像の畠／ｌｖ高めることが行われている。即ち
、今、各ツレー五間において画像信号成分Ｃ−変化がな
（、各雑音成分はそれぞれうｙメム性ＩＩｆであるとす
れば、鳳フレームに夏ってフレーム画像！加算すること
―よって謹・畠なる信号電力と、’５ｍＮなる雑音成分
が得られるとと口なる。従つて、ツレーム加算処理１１
−れたのちの信号の８７Ｍは５ｍ１４ｉｆイとなり、こ
の紬呆画像の−／Ｎの向上を図り得る０例えば４フレー
ムに１って加算錫層し−ムｃ−夏って加算処理した場合
には８７Ｍは８蕾に向上する。Conventionally, in fluoroscopy systems with high temporal resolution, each frame is -]] In V-M Dark I, weighting is added to increase the height/lv of the image. That is, now, if there is no change in the image signal component C between each tree (and if each noise component is a memetic IIf, then add the summer frame image to the Otori frame!).・It is said that a signal power of 100 mN and a noise component of 5 mN can be obtained.Therefore, the Treem addition process 11
- 87M of the signal after being removed becomes 5m14ifi, and it is possible to improve the -/N of this pongee image. 87M grows to 8 buds.
然し乍す、このような畠／ｗｑ上効果は、加算処理装置
′ｓ３る複数フレームの画像が同一位相であることが必
要であり、この為にはフレーム画像＆岡期的ｒ−餉出す
ることが必要である。However, such a Hatake/wq effect requires that the images of multiple frames produced by the addition processing device's3 have the same phase, and for this, the frame images It is necessary.
仮りＷ論ツレームにＩる画像加算錫運中に、被検体の体
動や臓器の動きが倹とると、像の動きの部分の加算効果
が失われ、かえって解像屓の低下Ｖ細く問題が生じた。If the subject's body movements and internal organ movements slow down during image addition according to the W theory, the addition effect of the image movement part will be lost, and the problem will be that the resolution will decrease and the problem will become worse. occured.
これ故、常に良好な診断像を得ることができなかった。Therefore, it was not always possible to obtain good diagnostic images.
本発明はこのような事情を考直してなされ桝もので、そ
の目的とするところは、被検体の体動や啄器４ＤｗＩＩ
参の如何んに拘らず、適応的な加算魁運によって常Ｃ−
嵐好なＸｌｌテレＶジｍｙ診断画像を得ることのできる
実用性の高いｘａテレに’ｙｗｙｊｌ像の加算逃運装置
を提供することにある。The present invention was made after reconsidering these circumstances, and its purpose is to detect the body movements of the subject and the 4Dw II
No matter what happens, C- is always achieved by adaptive addition luck.
The purpose of the present invention is to provide a highly practical xa-tele system capable of obtaining a clear Xll-tele-V-ji-my diagnostic image with a 'ywyjl image addition and escape device.
本発明の概要は、画像の動きｔ’１ｌｌｌＬ、常時繻フ
レー五関加算によって画像のＩ／Ｍｉｌｌ上を−り、動
きが大なるときｉ二は任意の）Ｖ−ム砿二おける画像の
フレーム内加算処運を適応的６；出力することによって
、電Ｃ二８／ＮΦ高％ｒｓＸ線テレｖｙｗン診断−像會
得、上述した目的を効果的に連成したものである。The outline of the present invention is that the motion of the image t'1llllL is always calculated on the I/Mill of the image by the addition of five frames, and when the motion is large, the frame of the image is By adaptively outputting the internal addition process, the above-mentioned objectives are effectively coupled.
以下、ｌＩｗｖ参層して本発明の一実施例につき＃ＩＷ
ｉ４する。Hereinafter, #IW will be described as an example of the present invention.
i4.
第１−は爽施例装置の概略構成図で、第２Ｉｍ（−（−
は画像の加算作４ｖ示す図である。被検体を透過して得
られたＸ線透過像をイメージ・イｙテンＶファイア會介
して光学像置換し、この光学像をテレｖｙ璽ｙカメツに
て撮像して得られたＸ線テレｖｙｘｙ画像（診断像）は
、１フレーム毎に順次＊ｉｉｍに示１１詐る加算処理装
置に入力１１れる。この加算処理装置６；は、Ｎ Ｃｔ
！４然数）傭のフレームメそ！ｌ １−＊ ｅ １−
ｍ〜１−舅が縦ｌｌＩ４１：接纏して設け６３ており、
上ｆ、Ｘ−テレ１１’５Ｆｌｌｙ画像はｌフレーム ＠
（二願次蓄積記憶されるようになっている。しかして
、現入力Ｘ線テレｖｆ＊ｙ＠像および各フレームメそツ
１−１＆Ｒ〜ｌ−菫にそれぞれ記憶された時系列な各フ
レームタイミンダのＸ線テレＶ圃像、つまり会計（Ｎ＋
１）儒・Ｘ纏テレＶジ璽ｙｗ像はツレーム間加算回路Ｊ
Ｃ−人力され、ツレー＾間加算Ｉ＆廻される。このフレ
ー五間加算処運は第意図（ａ）に示すように、複数のフ
レームの画像の対応画素信号な横１加算し、これを全画
像領域Ｌ−夏って行うものである。従って、各画像に會
ま詐る雑音成分は４１１ ｘ ｓｒ、榴１１曝れ、この
結果前記したようｉ；＃ ／ Ｎの高い加算処理装置が
得られることになる。この場合、加算ツレーム数が１６
の場合、ａ／Ｎが４倍、Ｖット数で２ｖツトの８／Ｎａ
１ｌ上が期待できる。No. 1- is a schematic configuration diagram of the example device, and No. 2 Im(-(-
is a diagram showing the image addition process 4v. The X-ray transmission image obtained by passing through the object is replaced with an optical image through an image exchanger, and this optical image is captured using a telephoto camera. The images (diagnosis images) are input 11 into an addition processing device shown as *iim in sequence one frame at a time. This addition processing device 6; is N Ct
! 4 natural numbers) A mercenary frame method! l 1-* e 1-
m~1-father-in-law is vertically llI41: attached and provided 63,
Upper f, X-Tele 11'5Flly image is l frame @
(The current input X-ray telephoto vf*y@image and each frame in time series stored in the frame meso 1-1&R~l-violet are stored in the second application. Taiminda's X-ray tele V field image, that is, accounting (N+
1) Confucian/X-tele Vjishu yw image is inter-Treme addition circuit J
C - Manually added and rotated between the trees. As shown in the second idea (a), this frame five-frame addition process adds 1 horizontally to the corresponding pixel signals of images of a plurality of frames, and performs this for the entire image area L-summer. Therefore, the number of noise components that appear in each image is 411 x sr, which results in an addition processing device with a high i;#/N as described above. In this case, the number of added trees is 16
In the case of , a/N is 4 times and the number of Vts is 2vts 8/Na
You can expect it to be 1l higher.
一方、任意ΦフレームのＸ＠テレＶジＩＩｙ両像、ここ
ではフレームノそツｊ−，ｃ−記憶１１れたＸ線テレＣ
ゾ璽ン画像は、フレーム内加算ｍｊＩＪＬ−人力されて
いる。このフレーム内加算（正確Ｌ−紘テｖｖジ１ン両
像のフィールド内加算）は、第冨１１（Ｎｔ：示すよう
６二、−両画中の（意鵬＋１）×（雪−＋１）ｓｌ嵩を
加算Ｊ６３ｍの対象とし、そ３ｂの画廟間の■像データ
ｖ＃ｌ嵩槽関Ｉ：ｌｌ！つて重み付は加算するものであ
る。従って、命、上記処理対龜画＠Ｃおいて、Ｉツイン
、ｈ画素離れた両嵩関の相関係数Ｖｌ（ｊ−ｋ）とした
場合、加算出力の信号電力は
として示ＩＩれる。またこのと会の絨１電力は（３醜＋
１）Ｎ
として示ｓ３る。従りて、このフレーム内加算旭珊出力
の１７舅は
倍に向上することになる。この加算部層もフレー−ム画
像の全両嵩Ｗ５いて行われる。この場合、例えば画像が
等７！ｋｖ有するとすればＲ（）、ｋ）翼１ （Ａ、−
ｋ）、Ｒ（ｊ、ｋ）−”Ｒ（−ｊ、ｋ）と看做すことが
でき、Ｍ＆−１，１（αｌ）冨Ｒ（１，９）諺曝１ 、
ｌ （１１）重電６なる相関があるものとすれば上記
加算出力・虐／Ｎは２． ！ Ｘ ｌ／Ｎとして示Ｓれ
、１鵞曽の８／Ｎ向上が期待できることになる。またこ
の８／肩向上は、同時こ両像データの約１ｒツシの歇譬
Ｖ Ｅ ９得ることを水し□ている。On the other hand, for any Φ frame's
The digital image is manually added using intra-frame addition mjIJL. This intra-frame addition (accurate intra-field addition of L-Hirote vvji1-in both images) is the 11th (Nt: 62 as shown, - (Yipeng+1) in both images x (Yue-+1)) sl volume is the subject of addition J63m, and the ■ image data between the picture halls in 3b v # l bulk tank Seki I: ll! and weighting is to be added. Therefore, the above processing vs. In this case, if the correlation coefficient Vl (j-k) of the I-twin and the two cells separated by h pixels is given, the signal power of the addition output is expressed as II. +
1) Denoted as N s3. Therefore, the 17-fold increase in the intra-frame addition Asahisan output is doubled. This addition section layer is also performed using the entire volume W5 of the frame image. In this case, for example, the image is 7! If it has kv, then R(), k) wing 1 (A, -
k), R(j, k)-” can be regarded as R(-j, k), M&-1,1(αl) wealth R(1,9) proverb 1,
l (11) Assuming that there is a correlation of heavy electric power 6, the above added output/N is 2. ! It can be expressed as Moreover, this 8/shoulder improvement makes it possible to obtain approximately 1r of data on both images at the same time.
従って、前記フレーム関加算１１１１Ｇ１で肱、現フレ
ーム（ｍｍｏ）ｔ’中心とする、その前後の合計（２ｍ
４１）個のフレームの画像の相互加算な行うものとすれ
ば、各フレームの画像ＷＰｉ（１罵−膳〜鳳）とし、加
算処理出力画像ｖＦ・としたとき。Therefore, in the frame relation addition 1111G1, the current frame (mmo) t' is the center, and the sum (2 m
41) If images of frames are to be mutually added, let the images of each frame be WPi (1) and let the addition processing output image vF be.
なる、ａ／Ｎの改醤ｓ３た画像Ｗ得るこｌ：になる、ま
たフレーム内加算１１ｊｌＪでは、Ｉツインｋｊｌ素の
画素値ｔ’ｌＥ４にとし、（１ｍ＋１）画素×（２醜＋
１）ライｙの両案加算Ｗ行うことε；より、その加算魁
−画素値７− として・−・
なるａ／Ｍ藏畳１１れた画素データを得ることＣ；なる
。By changing a/N, the image W obtained by changing s3 becomes:.In addition, in the intra-frame addition 11jlJ, the pixel value of the I twin kjl element is set to t'lE4, and (1m+1) pixels x (2 ugly +
1) Perform the two-way addition W of the line y, and obtain the pixel data obtained by adding a/M as the pixel value 7.
ところで、角に説明したように、フレーム関加算では、
鋤像瓢二―きがある場合、その動き部分の解像度低下を
招く、この動き量の大小Ｖ＠濁するものとしてフレーム
関減算−路４が設けられており、各フレーム画像間の差
分かｂ＊＊成分を検出している。そして、と・−＊ｇ分
は、絶対値加算■路ｌに４えｈれ、動き評価量１として
Ｉ諷―飄
が求めｂ詐ている。この評価量１は各フレーム画像の変
化、つまり被検体の移動量−Ｓ−するものであり、設電
値８との対比により、動きが大き１１が、あるいは小さ
いがｊＩｉ４１電ＩＩれるようＣ：なっている、即ち比
軟ＩａＩｊＩ−は、上記評価量１よ、比較基準値・七Ｗ
人童し、
１ンｅ
なるとき、動きが大、ｔた
１（ａ
なるとき動きが小であると判定している。そして、との
ｌＩｌ電繍果は切秦見鵡路ｙｃ−与見すれ、上記動きの
大小−二応じて、つまり動きが小なるときに紘フレーム
間加算回路１の加算出力りを選択抽出し、また動きが大
なるとき−；はフレーム内加算回路１の加算出力可。を
選択抽出するよう口構成されている。By the way, as explained in the corner, in frame function addition,
When the plow image is distorted, a frame subtraction method 4 is provided to consider the magnitude of the amount of movement, which causes a decrease in the resolution of the moving part. **Ingredients are being detected. Then, -*g is added to the absolute value addition, and the motion evaluation amount is 1. This evaluation amount 1 is the change in each frame image, that is, the amount of movement of the subject -S-, and when compared with the electric power setting value 8, it is determined that the movement is large (11) or small (C: , that is, the relative softness IaIjI- is the above evaluation quantity 1, the comparison standard value 7W
It is judged that the movement is large when the child becomes 1 e, and the movement is small when it becomes t 1 (a). Then, depending on the magnitude of the movement mentioned above, that is, when the movement is small, the addition output of the inter-frame addition circuit 1 is selected and extracted, and when the movement is large, the addition output of the intra-frame addition circuit 1 is selected. Possible.The mouth is configured to selectively extract.
尚、上記比較基準値１は、ｎおよび諷等の兼合いに応じ
て電められるもので、ａ／Ｎ１に９度がフレーム関加算
６二比してフレーム内加算Φ方が高くなるＩＩ会評価量
１・を得る値こ定めればよい。The above comparison reference value 1 is set according to the n and idiom, and 9 degrees to a/N1 corresponds to the II meeting where the intra-frame addition Φ is higher than the frame relation addition 62. What is necessary is to determine the value that yields the evaluation amount 1.
以上のようＣ二本装置によれば、被検体の体馳等区二起
因するフレーム画像の動ｔｋＬ一応じて、動きが小なる
ときにはフレーム間加算Ｉ＆理された両像な、また動き
が大なるとき１二はフレーム内加算ＩＩ＆廻された画像
【それぞれ選択的弧；出力するので、画像の動き６二拘
らず當に解像度が良く、１１／Ｎ・改曽ＳれたＸ層テレ
ｖｙｗｙ爾儂【得ることができる８４１１１ｍ１ｌｌ像
の動きによって解像度の低下したＸ線テレｖｙ＊ｙ画像
を出力することがないので、診１１１ＪＩ−寄与する効
果が大きい、そして、低照射線量で゛あるイメーｙ・イ
ｙｙｙｙファイア間接診断の特徴を活かした上で、像Φ
ａ７Ｈｑ上Ｖ図ることができ、体動や戯器・動ｊｃよっ
て悪参響を生じることがない。As described above, according to the C2 device, depending on the movement tkL of the frame image caused by the subject's body and torso, when the movement is small, the inter-frame addition I & processed both images are added, and when the movement is large. When 12 is the intra-frame addition II & rotated image [respectively selective arc; output, the resolution is very good regardless of the image movement 62, and the Since we do not output an X-ray telescopic image with reduced resolution due to the movement of the 84111m1ll image that can be obtained, the image that contributes to the diagnosis is large and has a low irradiation dose. Iyyyy After taking advantage of the characteristics of indirect fire diagnosis, the image Φ
A7Hq and upper V can be measured, and body movements, play equipment, and movements will not cause negative resonance.
しかも、ｌ［置構成も１Ｉｌ（：実現できるので、実用
的一点も多大である。Moreover, it is possible to realize the configuration of 1Il(:), so it has a great practical value.
崗、本俺明は上記実施例Ｌ−限定されるものではない０
例えば動き評価値を得る為Ｃ−用いるフレーム画像Ｐ・
、Ｆｌとして、個々の画素値ｉ用いることもでき、また
平均化された値を用いることもできる。ｔた基準値Ｃと
して１種類に限定されず、一般口複数種類用け、これら
の基準値との比較繍ＪＩ＆α対応して加算結果の選択出
力ｖｌｉ制御するよう（ニジてもよし）０例えばｍＦ＊
４−ｂ“１；。The present invention is based on the above Example L - Non-limiting 0
For example, to obtain a motion evaluation value, C-use frame image P.
, Fl, individual pixel values i can be used, or averaged values can be used. It is not limited to one type of reference value C, but multiple types of general mouths can be used, and the selected output vli of the addition result is controlled in accordance with the comparison with these reference values JI & α (it may be different) 0 For example, mF *
4-b"1;.
１十−
なる出力値を得るように複数種類の（ａｌｂ）なる定薮
を設定し、上記比較結果に応じてこれを選択するようＫ
してもよい。Set a plurality of types of fixed bushes (alb) to obtain an output value of 10-, and select one according to the above comparison result.
You may.
またフレーム間加算およびフレーム内加算をｍｚｋ（１
１） なる重み係数を与えて、重み付は加算するよう
にしてもよい。要するに本発明はその要旨を逸脱しない
範囲で種々変形して実施することができる。In addition, inter-frame addition and intra-frame addition are performed using mzk (1
1) A weighting coefficient may be given and the weighting may be added. In short, the present invention can be implemented with various modifications without departing from the gist thereof.
第１図は本発明の一実施例装置を示す概略構成図、第２
図（−） （ｂ）はフレーム間加算とフレーム内加算の
概念を示すモデル図である。
’−１＊ １−１ ＊ １−Ｎ・・・フレームメモリ、
２・・・フレーム間加算回路、３・・・フレーム内加算
回路、４・・・フレーム間減算回路、５・・・絶対値加
算回路、６・・・比較回路、１・・・切換え回路。FIG. 1 is a schematic configuration diagram showing an embodiment of the device of the present invention, and FIG.
Figure (-) (b) is a model diagram showing the concept of inter-frame addition and intra-frame addition. '-1* 1-1 * 1-N...Frame memory,
2... Inter-frame addition circuit, 3... Intra-frame addition circuit, 4... Inter-frame subtraction circuit, 5... Absolute value addition circuit, 6... Comparison circuit, 1... Switching circuit.
Claims (1)
−ｂｏｘ纏テレｔ”ｓＰ璽ン画像Ｗ画像−ツレＣおいて
重ミ付は加算するフレー五間加算回路と、上記フレーム
のＸ線テレＩＩ＃ｙ＊ｙ画像ｖ−ｔ−の画素間Ｌ−おい
て重み付は一算するプレーム内加算■路と、力する重み
付６す■路とを具備したことＶ特徴とするＸ纏テレｖｙ
ｘン画像ＩＤＪＩＩ算搗運装置。1II series txN+1 (N: 11M number) 7tz
-box-wrapped telet"sP engraving image W image - frame five adder circuit that adds weights and blemishes in distortion C, and inter-pixel L of X-ray telephoto II #y*y image vt- of the above frame - The X-telephone is characterized by having an intra-frame addition path for adding weights and a weighting six path for adding weights.
xun image IDJII calculation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56119778A JPS5820089A (en) | 1981-07-30 | 1981-07-30 | Addition processor for x-ray television image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56119778A JPS5820089A (en) | 1981-07-30 | 1981-07-30 | Addition processor for x-ray television image |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5820089A true JPS5820089A (en) | 1983-02-05 |
| JPH0332276B2 JPH0332276B2 (en) | 1991-05-10 |
Family
ID=14769980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56119778A Granted JPS5820089A (en) | 1981-07-30 | 1981-07-30 | Addition processor for x-ray television image |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5820089A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075185A (en) * | 1983-09-07 | 1985-04-27 | シ−メンス、アクチエンゲゼルシヤフト | X-ray diagnosing device |
| JPS60122547A (en) * | 1983-12-08 | 1985-07-01 | 株式会社東芝 | Radiation diagnostic apparatus |
| JPS622933A (en) * | 1985-06-28 | 1987-01-08 | 株式会社東芝 | X-ray diagnostic apparatus |
| JPH04241844A (en) * | 1991-01-09 | 1992-08-28 | Mitsubishi Electric Corp | Image interpolating method |
| JPH0647036A (en) * | 1992-07-31 | 1994-02-22 | Shimadzu Corp | Image processing system |
| WO2009040880A1 (en) * | 2007-09-25 | 2009-04-02 | Shimadzu Corporation | Radiation imaging apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102972A (en) * | 1979-01-31 | 1980-08-06 | Hitachi Ltd | Removal unit for noise of picture |
-
1981
- 1981-07-30 JP JP56119778A patent/JPS5820089A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55102972A (en) * | 1979-01-31 | 1980-08-06 | Hitachi Ltd | Removal unit for noise of picture |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075185A (en) * | 1983-09-07 | 1985-04-27 | シ−メンス、アクチエンゲゼルシヤフト | X-ray diagnosing device |
| JPS60122547A (en) * | 1983-12-08 | 1985-07-01 | 株式会社東芝 | Radiation diagnostic apparatus |
| JPH0429380B2 (en) * | 1983-12-08 | 1992-05-18 | ||
| JPS622933A (en) * | 1985-06-28 | 1987-01-08 | 株式会社東芝 | X-ray diagnostic apparatus |
| JPH04241844A (en) * | 1991-01-09 | 1992-08-28 | Mitsubishi Electric Corp | Image interpolating method |
| JPH0647036A (en) * | 1992-07-31 | 1994-02-22 | Shimadzu Corp | Image processing system |
| WO2009040880A1 (en) * | 2007-09-25 | 2009-04-02 | Shimadzu Corporation | Radiation imaging apparatus |
| JP4924717B2 (en) * | 2007-09-25 | 2012-04-25 | 株式会社島津製作所 | Radiation imaging device |
| US9585625B2 (en) | 2007-09-25 | 2017-03-07 | Shimadzu Corporation | Radiographic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0332276B2 (en) | 1991-05-10 |
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