JPS6293768A - Seal print collating system - Google Patents

Abstract

PURPOSE:To easily confirm or decide a result of collation by deciding a coincidence or a dissidence of a feature of a registering seal print pattern and a seal pint pattern to be collated, and subsequently, deciding a collation coincidence, a collation dissidence or a collation impossibility, when the features are coincident. CONSTITUTION:A pattern outside peripheral contour point (outside contour) of compared both seal prints is extracted, and in case of shapes of the compared both seal prints do not coincide, 'shape dissidence' is displayed. At the same time, a seal print pattern to be collated 14 and a registering seal print pattern 15 are displayed side by side, respectively, if different positions on the same screen of a display part 6. When the sizes of the outside contours do not coincide, 'size dissidence' is displayed, also, a seal print pattern to be collated 16 and a registering seal print pattern 17 are displayed side by side in different positions, respectively, and also a superposed pattern 18 or the outside contour point train of both the seal print patterns 16, 17 obtained by a feature extracting part 3 is displayed side by side. When all features of the compared seal print patterns are coincident, a degree of coincidence of both the seal prints is derived, and in a coincidence deciding part 5, collation coincidence, a collation dissidence, or a collation impossibility is decided.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、印鑑照合方式に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a seal verification method.

（従来の技術） 従来より採用されている印鑑照合方式としては特公昭６
０−２４５０８に採用されたものがある。この従来方式
では、被検印影を読取った被照合印影パタンと予め登録
されている登録印影パタンとを最も良く一致するように
重ね合せて重ねパタンを作成し、比較間印影の目視照合
を行う。重ねパタンは、比較間印影パタンの−・敷部と
被照合印影パタンの不一致部と登録印影パタンの不一致
部とがそれぞれ異なる色で区分されており、この色分は
表示された重ねパタンから印影の照合判定を行っていた
。(Conventional technology) A conventional seal verification method is the Tokuko Sho 6
There is one adopted in 0-24508. In this conventional method, an overlapping pattern is created by superimposing a checked seal imprint pattern obtained by reading a test seal imprint and a registered seal imprint pattern registered in advance so as to best match each other, and the seal imprints are visually checked during comparison. In the overlapping pattern, the bottom part of the compared seal imprint pattern, the unmatched part of the compared seal imprint pattern, and the unmatched part of the registered seal imprint pattern are divided into different colors. A comparison judgment was made.

（発明が解決しようとする問題点） しかしながら、１：、ｙ！５．シた従来の印鑑照合方式
では、目視照合用の表示パタンとしていかなる場合にも
一律に重ねパタンのみが表示されるため、比較間印影の
一致又は不一致の゛判定がしすらいという問題点があっ
た。例えば、今、第６図（Ａ）。(Problem to be solved by the invention) However, 1:,y! 5. In the conventional seal stamp verification method, only the overlapping pattern is uniformly displayed as the display pattern for visual verification in any case, so there is a problem that it is difficult to judge whether the seal impressions match or do not match between comparisons. Ta. For example, now in Figure 6 (A).

（Ｂ）及び（Ｃ）に示すように、外枠が角型で［沖Ｊの
文字の印影１１、外枠が丸型で「沖」の文字の印影１２
及び外枠が角型で「中」の文字の印影１３があるとする
。そこで、例えば、第６図（Ａ）及び（Ｂ）に示すよう
に比較間印影の外枠形状が丸型及び角型と互いに異なっ
ていて枠内に同一・形状の文字Ｔ例えば「沖」の文字が
形成されている印影１１及び１２のような場合、従来の
ような、表示画面上での重ねパタンの表示（７ｉｒＩ７
図（Ａ）　参照）からは、比較間印影の−・致（クロス
したハツチングで示した部分）或は不一致（−・方向の
ハツチングでそれぞれ示した部分）の判定がしずらかっ
た。As shown in (B) and (C), the outer frame is rectangular and the stamp 11 has the letters "Oki J", and the outer frame is round and the stamp 12 has the letters "Oki".
Assume that the outer frame is square and there is an imprint 13 of the character "medium". Therefore, for example, as shown in Figure 6 (A) and (B), the outer frame shapes of the comparison seal impressions are different from each other, round and square, and the letters T of the same shape and shape are inside the frame, for example, "Oki". In the case of seal impressions 11 and 12 on which characters are formed, the conventional display of overlapping patterns on the display screen (7irI7
From the results (see Figure (A)), it was difficult to determine whether the seal impressions between the comparisons matched (areas indicated by crossed hatchings) or mismatched (areas indicated by hatchings in the --direction).

また、第６図（Ａ）及び（Ｃ）に示すように、比較間印
影の外枠形状が同じで枠内の文字が明らかに異なってい
るような場合、これら両印影の毛ねパタンの表示（第７
図ＣＢ）　参照）からは、一致（クロスしたハツチング
で示した部分）或は不一致（−Ｊ　向（７）ハツチング
でそれぞれ示した部分）の判定が一層しずらかった。In addition, as shown in Figures 6 (A) and (C), when the outer frame shapes of the comparison seal impressions are the same but the characters within the frames are obviously different, the hair patterns of these two seal impressions are displayed. (7th
From Figure CB), it was even more difficult to determine whether the results were a match (the area shown by crossed hatching) or a mismatch (the area shown by the -J direction (7) hatching).

この発明の目的は、ト述した従来の問題点を解決し比較
間印影の一致或は不−・致の判定及び確認がしやすい印
鑑照合方式を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a seal matching method that solves the above-mentioned conventional problems and makes it easy to judge and confirm whether seal impressions match or do not match between comparisons.

（問題点を解決するためのＬ段） この目的の達成を図るためこの発明によれば、被照合印
影から被照合印影パタンを読み取る読取部と、被照合印
影パタン及び登録印影パタンの特徴をそれぞれ抽出する
特徴抽出部と、被照合印影パタン及び登録印影パタンの
いずれか一方の印影パタンを他方の印影パタンに対し位
置整合して整合パタンを作成する位置整合部と、前記他
方の印影パタンと整合パタンと全比較照合して−・成度
を求める照合比較部と、被照合印影パタン及び登録印影
パタンの両抽出特徴の一致又は不一致の判定を行うと共
に、照合比較部からの一致度に応じて両印影パタンの照
合判定を行う一致判定部と、一致判定部の照合判定結果
を表示する表示部を備えた印鑑照合方式において、　一
致判定部は、両抽出特徴を一致と判定した場合には照合
比較部からの−・成度と照合判定闇値とを比較して照合
判定結果を出力するように構成しており、表示部は一致
判定部において両抽出特徴が不一致と判断された場合に
、この不一致を認識出来る表示を行い及び、両抽出特徴
が一致と判定された場合に、前記照合判定結果を識別出
来る表示を行うように構成してあることを特徴とする。(L stage for solving the problem) In order to achieve this object, the present invention provides a reading section that reads the to-be-verified seal imprint pattern from the to-be-verified seal imprint, and a reading unit that reads the to-be-verified seal imprint pattern and the registered seal imprint pattern, respectively. a feature extraction unit that extracts features; a position matching unit that creates a matching pattern by positionally aligning one of the seal imprint patterns to be verified and the registered seal imprint pattern with the other seal imprint pattern; A verification and comparison section that compares and matches all the patterns and determines their degree of conformity, and a verification and comparison section that determines whether the extracted features of both the verified seal imprint pattern and the registered seal imprint pattern match or do not match, and also In the seal matching method, which includes a matching judgment section that performs a matching judgment of both seal imprint patterns, and a display section that displays the matching judgment result of the matching judgment section, the matching judgment section performs matching when both extracted features are judged to be a match. The comparison unit is configured to compare the −・comparison level with the matching judgment dark value and output the matching judgment result, and the display unit displays the following information when the matching judgment unit judges that both extracted features do not match. The present invention is characterized in that it is configured to display a display that allows this mismatch to be recognized, and to display a display that allows the comparison determination result to be identified when both extracted features are determined to match.

この発明の好適実施例にあっては、照合判定闇値を＝・
敷料定悶値及び不一致判定闇値とし他方の印影パタンと
整合パタンとの比較照合を繰り返し行って一致度の最大
値を求める。さらに照合判定結果を一致度の最大値が一
敷料定悶値以上のときは照合一致、−成度の最大値が不
一致判定闇値以下のときは照合不一致、及び−成度の最
大値が前記一致及び不一致判定閾値間のときは照合不能
とする。In a preferred embodiment of this invention, the comparison judgment darkness value is
Using the bedding constant value and the mismatch judgment darkness value, the other seal imprint pattern and the matching pattern are repeatedly compared and verified to find the maximum value of the degree of matching. Furthermore, the comparison judgment result is a match if the maximum value of the degree of matching is equal to or higher than the threshold value, a match does not match if the maximum value of the degree is less than or equal to the mismatch judgment value, and a case where the maximum value of the degree of − is equal to or higher than the If it is between the matching and non-matching determination thresholds, matching is not possible.

また、この発明の実施にあたり、一方の印影パタンを被
照合印影パタンとし及び前記他方の印影パタンを登録印
影パタンとするのが好適である。Further, in carrying out the present invention, it is preferable that one of the seal impression patterns is used as a checked seal impression pattern and the other seal impression pattern is used as a registered seal impression pattern.

さらに、この発明の実施にあたり、抽出特徴は被照合印
影パタン及び登録印影パタンの形状又は寸法とするのが
好適である。Further, in carrying out the present invention, it is preferable that the extracted feature be the shape or size of the stamp imprint pattern to be compared and the registered seal imprint pattern.

（作用） このような構成によれば、先ず登録印影パタンの特徴と
被照合印影パタンの特徴との一致又は不一致を判定し、
続いて特徴が一致した場合には照合一致、照合下−・致
又は照合不能の判定を行うことが出来る。従って、判定
結果に応じた表示パタンの目視照合により照合結果の確
認或は判定が容易となる。(Operation) According to such a configuration, first, it is determined whether the characteristics of the registered seal imprint pattern and the characteristics of the verified seal imprint pattern match or do not match,
Subsequently, if the features match, it is possible to determine whether the match matches, matches under match, or cannot match. Therefore, the verification or determination of the verification result is facilitated by visually verifying the display pattern according to the determination result.

（実施例） 以下図面を参照て、この発明の実施例につき説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.

尚、図はこの発明が理解出来る程度に概略的に示しであ
るにすぎず、また、この発明は図示例に限定されるもの
ではない。It should be noted that the drawings are merely schematic illustrations to facilitate understanding of the present invention, and the present invention is not limited to the illustrated examples.

第１図はこの発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.

第１図において、１は読取部であり、この読取部１にて
被検印影から被照合印影パタン１１（第５図（Ａ）　参
照）を読取って−・旦第−メモリ２に記憶させ、続いて
この読取られた被照合印影パタン１１の特徴、例えば外
形形状、外形寸法及びその他の特徴を特徴抽出部３の第
−抽ｆｆ１部３ａで抽出する。同様に予め第二メモリ４
に登録されている登録印影パタン１２又は１３（第５図
（Ｂ）又は（Ｃ）参照）も特徴抽出部３の第二抽出部３
ｂでそのパタンの特徴を抽出する。５は一致判定部であ
り、この一致判定部５では第一・及び第−二抽出部３ａ
及び３ｂでそれぞれ抽出された被照合印影パタン１１及
び登録印影パタン１２又は１３の特徴を比較して、両印
影パタン１１と、１２又は１３との抽出特徴の一致或は
不一致を判定する。ここで特徴不一致と判定されると両
印影を照合不一致と判断し、この結果に応じて表示部６
が表示を行う。In FIG. 1, reference numeral 1 denotes a reading section, and this reading section 1 reads the stamp imprint pattern 11 to be verified (see FIG. 5 (A)) from the stamp imprint to be examined and stores it in the memory 2. Subsequently, the features of the read seal imprint pattern 11 to be verified, such as the external shape, external dimensions, and other features, are extracted by the -th drawing ff1 section 3a of the feature extracting section 3. Similarly, the second memory 4
The registered seal imprint pattern 12 or 13 (see FIG. 5 (B) or (C)) registered in the second extraction section 3 of the feature extraction section 3 is also
b extracts the features of the pattern. Reference numeral 5 denotes a match determination unit, and this match determination unit 5 includes first and second extraction units 3a.
The features of the checked seal imprint pattern 11 and the registered seal imprint pattern 12 or 13 extracted in steps 3b and 3b are compared to determine whether the extracted features of both the seal imprint patterns 11 and 12 or 13 match or do not match. If it is determined that the characteristics do not match, it is determined that both seal impressions match and do not match, and the display unit 6
performs the display.

特徴抽出部３では、印影の外形形状、外形１法、印影の
外枠とその枠内の文字とが接触しているか否か等その他
の特徴を公知の技術により抽出すれば良い。例えば外形
形状及び外形寸法の＃徴抽出を行い、その結果これら特
徴のうち一つでも判定結果が異なれば照合不一・致と判
断される。形状の不一致或は寸法の不−・致との判定結
果に応じ第２図或は第３図に示すような表示を行う。The feature extraction unit 3 may extract other features such as the external shape of the seal impression, the external shape 1 method, and whether or not the outer frame of the seal impression is in contact with the characters within the frame using known techniques. For example, #-characteristics of the external shape and external dimensions are extracted, and if the determination result differs even in one of these characteristics, it is determined that there is no match or match. A display as shown in FIG. 2 or 3 is displayed depending on the determination result of a shape mismatch or a size mismatch.

第２図は形状の不一致の表示例を示し、第３図は１法の
不一致の場合の表示例である。比較両印影のパタン外周
輪郭点（外輪ｖＡ）の抽出を行い比較両印影の形状が不
一致の場合は第２図に示すように「形状不一致」と表示
する。それと共に被照合印影パタン１４及び登録印影パ
タン１５のそれぞれを表示部６０同一・画面上の異なる
位置に並べて表示する。比較印影の外枠が例えば丸型及
び角型という場合には、図示のように、比較両印影１４
及び１５の重ねパタンだけを見るより印影パタン１４及
び１５をそれぞれ並べて見るほうが、比較しようとする
印影の目視比較が容易であると共に、判定結果の目視確
認が容易である。FIG. 2 shows an example of the display when the shapes do not match, and FIG. 3 shows an example of the display when there is a mismatch in one method. The pattern outer contour points (outer ring vA) of both comparison seal impressions are extracted, and if the shapes of both comparison seal impressions do not match, "shape mismatch" is displayed as shown in FIG. 2. At the same time, the to-be-verified seal imprint pattern 14 and the registered seal imprint pattern 15 are displayed side by side on the display section 60 at different positions on the same screen. If the outer frame of the comparison seal impression is, for example, round or square, as shown in the figure, both comparison seal impressions 14
By viewing the seal impression patterns 14 and 15 side by side, rather than looking only at the overlapped patterns of 14 and 15, it is easier to visually compare the seal impressions to be compared, and it is easier to visually confirm the determination results.

また、外輪郭のす法が不一致の場合は第３図に示すよう
に「寸法不一致」と表示する。そして、さらに被照合印
影パタン１Ｇ及び登録印影パタン１７をそれぞれ異なる
位置に並べて表示すると共に。If the dimensions of the outer contours do not match, "size mismatch" is displayed as shown in FIG. Further, the seal imprint pattern 1G to be verified and the registered seal imprint pattern 17 are displayed side by side at different positions.

特徴抽出部３で得られる両印影パタン１８及び１７の外
輪郭点列の重ねパタン１８を並べて表示する。例えば比
較印影の外輪郭１６ａ及び１７ａが同じ丸型でかつ印影
の外枠内の文字が同一である場合、比較両印影パタン１
６及び１７の重ねパタン１日だけの表示よりも、図示の
ように、被照合印影パタンＩ６と登録印影パタン１７と
、比較印影パタン１６及び１７の外輪郭点列の重ねパタ
ン１８とを表示すれば、印影の目視比較及び判定結果の
目視確認が容易となる。The overlapping pattern 18 of the outer contour point sequences of both seal imprint patterns 18 and 17 obtained by the feature extracting section 3 is displayed side by side. For example, if the outer contours 16a and 17a of the comparison seal impressions are the same round shape and the characters within the outer frame of the seal impressions are the same, then both comparison seal impression patterns 1
Rather than displaying only one day of overlapping patterns 6 and 17, it is better to display the overlapping pattern 18 of the comparison seal imprint pattern I6, the registered seal imprint pattern 17, and the outer contour point sequence of the comparison seal imprint patterns 16 and 17, as shown in the figure. For example, visual comparison of seal impressions and visual confirmation of determination results are facilitated.

また外輪郭点列の重ねパタン１８と共に、比較印影パタ
ン１６及び１７の印影の目視比較が出来るので、判定結
果の目視確認が不安を残すことなく行える。尚、外形形
状及び外形寸法は特公昭８０−９３１３或は特公昭ＥＩ
Ｏ−５０３４に提案されている技術により比較印影の外
輪郭を輪郭追跡して抽出することが出来る。In addition, since it is possible to visually compare the seal impressions of the comparative seal impression patterns 16 and 17 together with the overlapping pattern 18 of the outer contour point sequence, the judgment result can be visually confirmed without any anxiety. In addition, the external shape and dimensions are those of Tokuko Sho 80-9313 or Tokuko Sho EI.
Using the technique proposed in No. 0-5034, it is possible to trace and extract the outer contour of the comparison seal impression.

次に、比較印影パタンの特徴が全て一致した場合、例え
ば外形形状及び外形寸法が共に一致すると位置整合部７
において被照合印影パタンを移動及び回転させて登録印
影パタンと重なるように被照合印影パタンの位置整合が
行われる。尚、この整合パタンは、登録印影パタンを移
動及び回転させて被照合印影パタンを重なるように位置
整合して、得てもよい。このようにして得られた整合パ
タンを第三メモリ８に記憶させる。Next, when all the characteristics of the comparative seal imprint pattern match, for example, when both the external shape and external dimensions match, the position matching part 7
In , the seal imprint pattern to be compared is moved and rotated to align the position of the seal imprint pattern to be compared so that it overlaps with the registered seal imprint pattern. Note that this matching pattern may be obtained by moving and rotating the registered seal imprint pattern and aligning the registered seal imprint patterns so that they overlap with each other. The matching pattern thus obtained is stored in the third memory 8.

照合比較部９では第二メモリ８から整合パタンを読出し
、この整合パタンと登録印；形パタンとのマツチングを
とって両印影の一致度を求める。−成度は１例えば２値
化処理されている登録印影パタンと２値化処理されてい
る整合パタンとのマツチングをとってこれらパタンの相
対応する画素点の−・成果点数及び不−・成果点数を調
べて求める。The matching comparison section 9 reads out the matching pattern from the second memory 8, and matches the matching pattern with the registered mark; shape pattern to determine the degree of matching between the two seal impressions. - For example, the registered seal imprint pattern that has been binarized and the matched pattern that has been binarized are matched, and the corresponding pixel points of these patterns are - Result score and Failure - Result Check and find the score.

一致判定部６にて比較両印影の一致判定が行われる。こ
の判定結果を必要に応じて位置整合部７にフィードバッ
クして一致度が向上する方向に被照合印影パタンの移動
及び回転を再度施し、再び照合比較部９にて一致度を調
べる。このような工程を繰り返して一致度の最大値を得
る。A match determination section 6 performs a match determination between the comparison seal impressions. This determination result is fed back to the position matching section 7 as necessary, and the seal imprint pattern to be verified is moved and rotated again in a direction that improves the degree of coincidence, and the degree of coincidence is checked again in the matching comparison section 9. These steps are repeated to obtain the maximum matching degree.

・敷料足部５では、照合・致、照合下・致ヌは照合不能
の判定先行うため、この−成度の最大値と予め定められ
た所疋値（閾値）との比較を行う。一致１隻の、最大値
が−・敷料定闇値以にである場合には「照合一致」と判
定し、−成度の最大値が不一致′４４１定閾値未満であ
る場合には「照合下・致」と判定し、−成度の最大値が
一致判定Ｉ２１Ｉ値未満でかつ不−・致利定闇値以上で
ある場合には「照合不能」と判定する。「照合不能」と
判定されたときには比較両印影のｇ偽′判定を十ベレー
タに委ねる。- In the bedding foot section 5, in order to determine whether the comparison is impossible or not, the maximum value of this negative value is compared with a predetermined threshold value (threshold value). If the maximum value of one matching boat is equal to or less than the threshold value of - bedding, it is judged as a "verification match", and if the maximum value of - growth is less than the mismatch '441 fixed threshold value, it is judged as a "matching match". If the maximum value of the -matching degree is less than the matching determination I21I value and greater than or equal to the matching value I21I, it is determined that "matching is not possible." If it is determined that ``comparison is not possible,'' the judgment of g false ' of both seal impressions for comparison is left to the 10 verator.

上述した一致判定及び不−・敷料定の各閾値は例えば次
のようにして実験的にサンプルを取って定めることが出
来る。印影が登録された印鑑Ａと、登録印影に類似した
印影を有する印鑑Ｂを用意する。登録印影を印影ａ、印
影が登録された印鑑Ａを押捺して得た被照合印影を被照
合印影ａ　及び印鑑Ｂを押捺して得た被照合印影を被照
合印影すとする。印鑑Ａ及び印ｔｇＢを多数回押捺して
それぞれの印影ａ′及びｂをいくつも用意し、これら印
影ａ　及びｂと登録印ｉ１ａとの照合比較を行って−・
成度を求める。そして不一致Ｉ８価は、登録印影ａと印
鑑Ａから得た多数の被照合印影ａ“とを比較照合して実
験的に得られたの一致度のうち最小の値を基準にして得
ることが出来る。また、一致閾値は、登録印影ａと印ｉ
Ｂかた得た多数の被照合印影すとを比較照合して実験的
に得られた一致度のうち最大の値を基準にして得ること
が出来る。これら閾値から「照合一致」、「照合下−・
致」及び「照合不能」の判定を行い１表示部６にてこの
判定結果に応じた表示制御を行い表示装置に印影パタン
の表示を行う。The above-mentioned threshold values for the coincidence determination and the failure/bedding determination can be determined by taking samples experimentally, for example, in the following manner. A seal stamp A with a registered seal impression and a seal B with a seal impression similar to the registered seal impression are prepared. It is assumed that the registered seal imprint is imprint a, the to-be-verified seal imprint obtained by stamping the registered seal imprint A is the to-be-verified seal imprint, and the to-be-verified seal imprint obtained by imprinting the seal B is the to-be-verified seal impression. Seal A and tgB are stamped many times to prepare a number of seal impressions a' and b, and these seal impressions a and b are compared with the registered seal i1a.
Seek maturity. The mismatch I8 value can be obtained based on the minimum value of the degree of coincidence obtained experimentally by comparing the registered seal imprint a and a large number of verified seal imprints a'' obtained from the seal A. .Also, the matching threshold is the registered seal imprint a and the imprint i
It can be obtained based on the maximum value of the degree of coincidence obtained experimentally by comparing and collating a large number of obtained seal imprints to be compared. From these thresholds, "verification match", "verification lower -・
A determination is made as to whether "verification is possible" or "verification is impossible", and display control is performed on the first display section 6 according to the results of this determination, thereby displaying the seal imprint pattern on the display device.

第４図（Ａ）及びＣＢ）は照合判定の結果に応じた印影
パタンの表砥例であり、第４図（Ｃ〕は照合不一致の場
合の表示の説明図である。これら図を参照して表示部６
で行う印影パタンの表示につき説明する。Figures 4(A) and CB) are examples of surface polishing of seal impression patterns according to the results of verification and determination, and Figure 4(C) is an explanatory diagram of the display in the case of mismatched verification. display section 6
The display of the seal imprint pattern will be explained below.

第４図（Ａ）に示すように判定結果が「照合一致」或は
「照合不能」の場合には５−成度と判定結果と比較両印
影パタン１９及び２０と、さらに−成度の最大値を得た
整合パタン１９と登録印影パタン２０とを重ね合せた重
ねパタン２１とを表示する。被照合印影パタン１８と登
録印影パタン２０とは並べて表示し、重ねパタン２１は
これら印影パタン１９及び２０の表示位置と異なる位置
に表示する０重ねパタン２１を作成し表示する方法とし
ては例えば特公昭６０−２４５０８に提案の方法があり
、この方法に従って重ねパタン２１は登録印影パタン２
０と一致度の最大値を得た整合パタン１９との一致部分
２２と、登録印影パタン２０−ｈの−・致しない部分２
０ａと、−成度の最大値を得た整合パタン１８上の一致
しない部分１９ａとを各々異なる色で表示することも出
来る。As shown in Fig. 4 (A), if the judgment result is ``verification match'' or ``unmatchable'', the judgment result is compared with 5-composition, both seal imprint patterns 19 and 20, and furthermore, the maximum of -composition. A superimposed pattern 21 in which the matching pattern 19 for which the value has been obtained and the registered seal imprint pattern 20 are superimposed is displayed. A method for creating and displaying a 0-overlap pattern 21 in which the comparison seal impression pattern 18 and the registered seal impression pattern 20 are displayed side by side, and the overlapping pattern 21 is displayed at a position different from the display position of these seal impression patterns 19 and 20 is, for example, as described by Tokko Sho. There is a method proposed in No. 60-24508, and according to this method, the overlapping pattern 21 is the registered seal imprint pattern 2.
0 and the matching pattern 19 that obtained the maximum value of matching 22, and the unmatched part 2 of the registered seal imprint pattern 20-h.
0a and the non-matching portion 19a on the matching pattern 18 for which the maximum value of -growth has been obtained can be displayed in different colors.

このように表示することにより「照合一致」或は「照合
不一致」の判定時には、被照合印影パタン１９、登録印
影パタン２０及び重ねパタン２１を目視して、特に重ね
パタン２１を目視して被照合パタン１８と登録印影パタ
ン２０との−・敷部分（クロスしたハツチングで示した
部分）２２及び不一致部分（右済め及び左」め方向のハ
ツチングで示した部分）１９ａ、２０ａを明瞭に識別す
ることが出来る。従つて、比較前印影パタン１９及び２
０の一致の確認、或は、比較前印影パタン１９及び２０
の一致φ不一致の判断が容易に行える。「照合−・致」
或は「照合不一致」と判定されるのは通常は比較前印影
パタンか同一か或はかなり類似しているからであって、
その場合には両者の差異は微妙である。従って、このよ
うな場合、印影を重ねてみてはじめて比較前印影の差異
がわかるということが多いので、判断が容易となる。By displaying it in this way, when determining whether there is a "verification match" or "comparison mismatch", the target seal imprint pattern 19, the registered seal imprint pattern 20, and the overlapping pattern 21 can be visually checked, and in particular, the overlapping pattern 21 can be visually checked to determine whether the matching target is being checked. To clearly distinguish between the pattern 18 and the registered seal imprint pattern 20, the bottom part (the part shown by crossed hatching) 22 and the mismatched part (the part shown by hatching towards the right and left side) 19a and 20a. I can do it. Therefore, the seal impression patterns 19 and 2 before comparison
0 match, or seal impression patterns 19 and 20 before comparison
It is easy to judge whether there is a match φ or a mismatch. "Verification - Completion"
Alternatively, it is usually determined that there is a "matching mismatch" because the seal impression patterns before comparison are the same or quite similar.
In that case, the difference between the two is subtle. Therefore, in such cases, it is often the case that the difference between the pre-comparison seal impressions can be seen only after the seal impressions are superimposed, making the judgment easier.

判定結果が照合不一致の場合には、オペレータは重ねパ
タンから判定結果を理解することは困難であるし、又、
比較前印影パタンから容易に判定結果の確認が出来る場
合であるので、重ねパタンの表示は必要ない。従って、
この場合には第４図（Ｂ）に示すように、−成度と５判
定結果と、被照合印影パタン２３と登録印影パタン２４
とを表示部６にて各々別の表示位置に表示する。第４図
（Ｇ）に示すように重ねパタン２５において比較前印影
パタンの一致部分（クロスしたハツチングで示した部分
）２６及び不一致部分（一方向のハツチングで示した部
分）　２７ａ、２７ｂを見るよりも比較前印影パタン２
３及び２４を見た方がその違いが明らかである。If the judgment result is a mismatch, it is difficult for the operator to understand the judgment result from the overlapping patterns, and
Since this is a case where the determination result can be easily confirmed from the pre-comparison seal impression pattern, it is not necessary to display the overlapping pattern. Therefore,
In this case, as illustrated in FIG.
are displayed at different display positions on the display unit 6. As shown in FIG. 4(G), in the overlapping pattern 25, the matching portion (portion indicated by crossed hatching) 26 and the mismatching portion (portion indicated by unidirectional hatching) 27a and 27b of the seal imprint pattern before comparison are shown. Seal impression pattern 2 before comparison
The difference is clearer when looking at 3 and 24.

なお、改ねパタン２５の一致部分２６は比較前印影パタ
ンの一致部分を示し、不一致部分２７ａは被照合印影パ
タン２３上の不一致部分及び不一致部分２７ｈは登録印
影パタン２４上の不一致部分を示す。Note that a matching portion 26 of the revised pattern 25 indicates a matching portion of the seal imprint pattern before comparison, a mismatching portion 27a indicates a mismatching portion on the seal impression pattern to be verified 23, and a mismatching portion 27h indicates a mismatching portion on the registered seal imprint pattern 24.

−丘述した実施例では、特徴抽出部３において被照合印
影パタン及び登録印影パタンの両方の特徴を抽出したが
、登録印影パタンを登録する際に登録印影パタンの特徴
をｆめ抽出しておき、被照合印影パタンの特徴抽出のみ
を特徴抽出部３において行っても良い。- In the embodiment described above, the features of both the verified seal imprint pattern and the registered seal imprint pattern were extracted in the feature extraction unit 3, but when registering the registered seal imprint pattern, the features of the registered seal imprint pattern were extracted f. , only the feature extraction of the seal imprint pattern to be verified may be performed in the feature extraction section 3.

第５図は「す法不一致」と判定された場合の印影パタン
表示の変形例であり、７ｉＳ３図に示した同一の構成成
分については同一符号を付して示した。上述した実施例
では「寸法不一致」の場合に被照合印影パタン及び登録
印影パタンの外輪郭点を重ねて表示（第３図参照）する
ことについて説明したが、このように表示する以外に比
較前印影パタンの外輪郭点列から得られる外接四辺形を
外接枠として重ねて表示しても良い。第５図において、
２日は比較前印影パタン１Ｇ及び１７かも得られた外接
四辺形の重ねパタンであり、重ねパタン２８は被照合印
影パタン１６の外輪郭１１３ａに外接する外接四辺形２
９と、登録印影パタン１７の外輪郭１７ａに外接する外
接四辺形３０とが重ね合せて表示しである。このように
表示しても丘述した実施例と同様な効果が得られる。ま
た、外接四辺形成外に比較前印影パタンの外輪郭に外接
する外接枠を重ねパタンとして表示しても上述した実施
例と同様な効果が期待出来る。外接四辺形成はその他の
外接枠は公知の技術により得ることが出来る。FIG. 5 shows a modification of the seal imprint pattern display when it is determined that there is a "mismatch", and the same components shown in FIG. 7iS3 are designated by the same reference numerals. In the above-mentioned embodiment, in the case of "dimension mismatch," the outer contour points of the compared seal imprint pattern and the registered seal imprint pattern are displayed in an overlapping manner (see Fig. 3). The circumscribed quadrilateral obtained from the outer contour point sequence of the seal impression pattern may be displayed in an overlapping manner as a circumscribed frame. In Figure 5,
On the 2nd, the pre-comparison seal impression patterns 1G and 17 are also overlapping patterns of the circumscribed quadrilaterals obtained, and the overlapping pattern 28 is the circumscribed quadrilateral 2 circumscribing the outer contour 113a of the seal impression pattern 16 to be compared.
9 and a circumscribed quadrilateral 30 circumscribing the outer contour 17a of the registered seal imprint pattern 17 are displayed in a superimposed manner. Even with this display, the same effect as in the embodiment described above can be obtained. Further, even if a circumscribing frame circumscribing the outer contour of the pre-comparison seal imprint pattern is displayed as an overlapping pattern outside of the circumscribed four sides, the same effect as in the above-described embodiment can be expected. The formation of circumscribed four sides and other circumscribed frames can be obtained by known techniques.

また、この実施例では「照合一致」の場合に、被照合印
影パタンと１登録印影パタンと、虫ねパタンとを表示す
ることについて説明したが、この場合に被照合パタンを
表示する代わりに整合パタンを表示しても同様な効果が
得られ、また重ねパタンのみを表示することとしても同
様な効果が得られる。In addition, in this embodiment, in the case of "verification match", it has been explained that the verified seal imprint pattern, 1 registered seal imprint pattern, and magnifying pattern are displayed, but in this case, instead of displaying the verified pattern, the matching A similar effect can be obtained by displaying patterns, and a similar effect can also be obtained by displaying only overlapping patterns.

さらに、この実施例では「照合一致」或は「照合不−・
致」の判定時に重ねパタンを一致部と、ｆ−敷部とで色
分は表示することにつき説明したが、爪ねパタンの色分
は表示の代わりに、モノクロームディスプレイ装置を用
いて表示を行うことも出来る。この場合登録印影パタン
と整合パタンとの交互表示を行ったり、或は比較前印影
パタンの−・敷部と不一致部との輝度を変えた状態で重
ねパタンとして表示を行っても同様な効果が得られる。Furthermore, in this embodiment, "verification match" or "verification failure"
It has been explained that the color divisions of the matching part and the f-laying part of the overlapping pattern are displayed when determining "match", but instead of displaying the color divisions of the nail pattern, a monochrome display device is used to display it. You can also do that. In this case, the same effect can be obtained by alternately displaying the registered seal imprint pattern and the matching pattern, or by displaying them as overlapping patterns while changing the brightness of the negative and unmatched areas of the seal imprint pattern before comparison. can get.

（発明の効果） 上述した説明から明らかなように、この発明の印鑑照合
方式によれば、登録印影パタン及び被照合印影パタンの
抽出特徴から特徴一致又は特徴不一致を判定し、特徴不
一致と判定した場合には抽出特徴の不一致を識別出来る
表示を行う、また、特徴一致と判定した場合にはざらに
照合一致、照合不一致及び照合不能のいずれに該当する
か判定を行う。そして、この判定結果に応じ照合一致、
照合不一致及び照合不能が識別出来る表示を行う、従っ
て、印鑑の照合結果の確認が容易である。(Effects of the Invention) As is clear from the above explanation, according to the seal matching method of the present invention, feature matching or feature mismatch is determined from the extracted features of the registered seal impression pattern and the verified seal impression pattern, and it is determined that the features are mismatched. If it is determined that the extracted features do not match, a display is displayed that allows identification of the mismatch of the extracted features, and if it is determined that the features match, it is roughly determined whether the match is matching, mismatching, or impossible. Then, according to this judgment result, matching is performed.
A display that allows identification of non-matching and non-matching is provided, so that it is easy to confirm the matching results of seal stamps.

また、照合−・致及び照合不能の場合には、比較間印影
の差異が微妙となるが、表示されたパタン特に重ねパタ
ンから微妙な比較間印影の差異を識別出来、照合結果の
確認が容易である。特に、判定結果が照合不能の場合は
オペレータが比較間印影の真偽判定を行うので、この場
合に比較間印影の真偽判定をオペレータは容易に行うこ
とが出来る。In addition, in the case of matching and non-matching, the differences in seal impressions between comparisons will be subtle, but subtle differences in seal impressions between comparisons can be identified from the displayed patterns, especially overlapping patterns, making it easy to confirm the matching results. It is. In particular, if the determination result is that verification is impossible, the operator determines the authenticity of the inter-comparison seal imprint, and in this case, the operator can easily determine the authenticity of the inter-comparison seal imprint.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明による印鑑照合方式の一叉流側を説明
するためのブロック図、 第２図〜第５図はχ流側及び変形例の説明に供するパタ
ン表示例を示した線図、 第６図（Ａ）〜（Ｃ）、及び、第７図（Ａ）及び（Ｂ）
は従来の印鑑照合方式の説明に供する線図である。 １・・・読取部 ２・・・（被照合印影パタン用の）第一メモリ３．３ａ
、３ｂ・・・特徴抽出部 ４・・・ＯＤ録印影パタン用の）第二メモリ５・・・一
致判定部、　　　６・・・表示部７・・・位置整合部 ８・・・（整合パタン用の）メモリ ９・・・照合比較部 １４．１６．２３・・・被照合印影パタン＋５４７．２
０．２４・・・登録印影パタンｌｅａ、１７ａ・・・外
輪郭 １８．２１．２５．２８・・・玉ねパタン１９・・・整
合パタン １９ａ、２０ａ、２７ａ、２７ｂ　−−−不一致部分２
２．２６・・・−敷部分 ２９．３０・・・外接枠（外接四辺形）。 特許出願人　　　沖電気工業株式会社 ／４　　　　　　　　ｆ！； ７４　　不良貝！８一台ＹＬバグン １５　’堂＃ｔ−ｐｉ沖＼゛タン ＩＦ影ハ″！　　ンのゑ氷イダ′１ 第２図 １６・板吐金トＰ（妨・クン　　Ｉ゛隻他バ２ン１７　
　賛辞トＰ影パタン　　ｆ６ｄ　、　／７．ｉ　　タト
輪卸り影ハ・り〉の！Ｌか、１１１ 第３図 ロコ ２δ：重ねパタン ２’７．　３０　　’　　ブト＃［）！＋４／仁Ｙシバ
゛タン表示、の漿形イｌ１１ 第５図 −呼 ぶ 手続補正書 昭和６１年１０月１４日FIG. 1 is a block diagram for explaining the one-way side of the seal verification method according to the present invention, and FIGS. 2 to 5 are diagrams showing pattern display examples for explaining the χ-way side and modified examples. Figures 6 (A) to (C) and Figures 7 (A) and (B)
is a diagram for explaining a conventional seal verification method. 1...Reading section 2...First memory 3.3a (for the seal imprint pattern to be verified)
, 3b...Feature extraction section 4...Second memory 5...for OD record imprint pattern) Matching determination section 6...Display section 7...Position matching section 8...(For matching pattern) (for) Memory 9...Verification comparison section 14.16.23...Seal imprint pattern to be verified +547.2
0.24...Registered seal imprint pattern lea, 17a...Outer contour 18.21.25.28...Ball pattern 19...Matching pattern 19a, 20a, 27a, 27b---Unmatched portion 2
2.26...-Bed portion 29.30... Circumscribed frame (circumscribed quadrilateral). Patent applicant Oki Electric Industry Co., Ltd./4 f! ; 74 Bad shellfish! 81 YL Bagun 15 'Do #t-pi offing\゛tan IF shadow ha''!
Tribute P shadow pattern f6d, /7. i Tato wheel wholesale shadow ha・ri〉! L or 111 Figure 3 Loco 2δ: Layered pattern 2'7. 30' Buto # [)! +4/Jin Y button display, Serum shape l11 Figure 5 - Calling procedure amendment October 14, 1985

Claims (4)

【特許請求の範囲】[Claims] （１）被照合印影から被照合印影パタンを読み取る読取
部と、該被照合印影パタン及び登録印影パタンの特徴を
それぞれ抽出する特徴抽出部と、被照合印影パタン及び
登録印影パタンのいずれか一方の印影パタンを他方の印
影パタンに対し位置整合して整合パタンを作成する位置
整合部と、前記他方の印影パタンと整合パタンとを比較
照合して一致度を求める照合比較部と、前記被照合印影
パタン及び登録印影パタンの両抽出特徴の一致又は不一
致の判定を行うと共に、前記照合比較部からの一致度に
応じて両印影パタンの照合判定を行う一致判定部と、該
一致判定部の照合判定結果を表示する表示部を備えた印
鑑照合方式において、前記一致判定部は、両抽出特徴を
一致と判定した場合には、前記照合比較部からの一致度
と照合判定閾値とを比較して、照合判定結果を出力する
ように構成しており、 前記表示部は、前記一致判定部において両抽出特徴が不
一致と判断された場合に、該不一致を認識出来る表示を
行い及び、両抽出特徴が一致と判定された場合に、前記
照合判定結果を識別出来る表示を行うように構成してあ
ることを特徴とする印鑑照合方式。(1) A reading unit that reads a verified seal imprint pattern from a verified seal imprint; a feature extraction unit that extracts the features of the verified seal imprint pattern and the registered seal imprint pattern; a position matching unit that aligns the position of the seal impression pattern with the other seal impression pattern to create a matching pattern; a matching comparison unit that compares and matches the other seal impression pattern with the matching pattern to determine a degree of matching; and the to-be-verified seal impression. a match determination unit that determines whether the extracted features of the pattern and the registered seal imprint pattern match or do not match, and also performs a match determination of both the seal imprint patterns according to the degree of matching from the verification comparison unit; and a verification determination by the match determination unit In the seal matching method including a display section that displays a result, when the matching determination section determines that both extracted features match, the matching determination section compares the degree of matching from the matching comparison section with a matching determination threshold; The display unit is configured to output a match determination result, and when the match determination unit determines that both extracted features do not match, the display unit displays a display that allows the user to recognize the discrepancy and indicates that both extracted features match. A seal verification method characterized in that, when it is determined that the verification determination result is displayed, the verification result is displayed in a manner that allows identification. （２）前記照合判定閾値を一致判定閾値及び不一致判定
閾値とし、 前記他方の印影パタンと整合パタンとの比較照合を繰り
返し行って一致度の最大値を求め、前記照合判定結果を
前記一致度の最大値が該一致判定閾値以上のときは照合
一致、 該一致度の最大値が該不一致判定閾値以下のときは照合
照合不一致、及び 該一致度の最大値が前記一致及び不一致判定閾値間のと
きは照合不能としたことを特徴とする特許請求の範囲第
１項記載の印鑑照合方式。(2) The comparison judgment threshold is set as a match judgment threshold and a mismatch judgment threshold, and the other seal imprint pattern and the matching pattern are repeatedly compared and matched to find the maximum value of the degree of coincidence, and the comparison judgment result is used as the matching degree. When the maximum value is greater than or equal to the match determination threshold, it is a match match; when the maximum value of the degree of match is less than or equal to the mismatch determination threshold, it is a match match; and when the maximum value of the degree of match is between the match and mismatch determination thresholds, it is a match match. 1. The seal verification method according to claim 1, wherein: is made impossible to verify. （３）前記一方の印影パタンを被照合印影パタンとし及
び前記他方の印影パタンを登録印影パタンとしたことを
特徴とする特許請求の範囲第１項記載の印鑑照合方式。(3) The seal stamp matching method according to claim 1, wherein the one seal impression pattern is a stamp impression pattern to be verified, and the other seal impression pattern is a registered seal impression pattern. （４）前記抽出特徴は前記被照合印影パタン及び登録印
影パタンの形状又は寸法としたことを特徴とする特許請
求の範囲第１項記載の印鑑照合方式。(4) The seal stamp matching method according to claim 1, wherein the extraction feature is the shape or size of the stamp impression pattern to be verified and the registered seal impression pattern.