JPH0920157A - Vigilance drop detector - Google Patents
Vigilance drop detectorInfo
- Publication number
- JPH0920157A JPH0920157A JP7173221A JP17322195A JPH0920157A JP H0920157 A JPH0920157 A JP H0920157A JP 7173221 A JP7173221 A JP 7173221A JP 17322195 A JP17322195 A JP 17322195A JP H0920157 A JPH0920157 A JP H0920157A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- decrease
- night
- creating
- determination
- 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
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両運転中のドラ
イバの覚醒度低下を検出し、ドライバに危険を報知する
技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique of detecting a decrease in awakening of a driver while driving a vehicle and notifying the driver of danger.
【０００２】[0002]
【従来の技術】交通事故を低減するために車両運転中の
ドライバの覚醒度低下や居眠りを検知するには、脳波の
測定、ハンドル操作の状況や瞬き等により行う事は提案
されている。2. Description of the Related Art In order to reduce traffic accidents, it has been proposed to detect a driver's awakening or drowsiness while driving a vehicle by measuring brain waves, operating a steering wheel or blinking.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
技術では測定しているデータが確実に覚醒度の低下や居
眠りの兆候を示しているとは言えないという問題があ
り、また、測定用のセンサを体に装着しなければならな
い等のために面倒で厄介であり、実用化されていないの
が実情である。However, the above technique has a problem that the measured data cannot be said to certainly indicate a decrease in arousal level or a drowsiness, and a sensor for measurement is used. It is troublesome and troublesome because the user has to wear it on the body, and the reality is that it has not been put to practical use.
【０００４】したがって、本発明はドライバの体にセン
サ等を装着することなく、覚醒度の低下を検出し、ドラ
イバに報知して安全を確保する覚醒度低下検出装置を提
供することを目的としている。Therefore, an object of the present invention is to provide a wakefulness lowering detection device which detects a decrease in wakefulness and informs the driver of safety without mounting a sensor or the like on the body of the driver. .
【０００５】[0005]
【課題を解決するための手段】本発明によれば、視線を
計測する計測手段と、視線の頻度分布パターンを作成す
る作成手段と、覚醒度の低下検出時における前記パター
ンと、予め作成された覚醒時における前記パターンとを
比較して覚醒度が低下しているか否かを判断する判断手
段と、その判断手段により覚醒度が低下していると判断
された場合に警報を発する警報発生手段とを含んでい
る。According to the present invention, a measuring means for measuring the line of sight, a creating means for creating a frequency distribution pattern of the line of sight, the pattern at the time of detecting a decrease in arousal level, and the pattern created in advance. A judgment means for judging whether or not the awakening degree is decreased by comparing with the pattern at the time of awakening, and an alarm generating means for issuing an alarm when the judgment means judges that the awakening degree is decreased. Is included.
【０００６】また、本発明によれば、前記判断手段は覚
醒度の低下を複数のレベルで判断し、かつ複数のレベル
の各々に対応した判断信号を出力するよう構成され、前
記警報発生手段は前記レベルの各々に対応した警報を発
する様に構成されている。Further, according to the present invention, the judgment means is configured to judge a decrease in arousal level at a plurality of levels and output a judgment signal corresponding to each of the plurality of levels, and the alarm generation means is provided. It is configured to issue an alarm corresponding to each of the levels.
【０００７】また、本発明によれば、覚醒度の低下検出
時が昼、夕暮れ或は明け方、夜の何れに該当するかを検
出して判断する昼夜判断手段と、前記パターンを作成す
る作成手段は昼、夕暮れ或は明け方、夜で異なるパター
ンを作成し、前記昼夜判断手段は昼、夕暮れ或は明け
方、夜に対応するパターンを用いて判断を行っている。
また、本発明によれば、覚醒度の低下検出時に検出が行
われている車両の走行状態を検出する走行状態検出手段
を有し、前記判断手段は走行状態検出手段の検出結果か
ら当該車両の走行状態を判断し、前記パターンを作成す
る作成手段は走行状態に対応したパターンを作成し、さ
らに前記判断手段は覚醒度の低下検出時における走行状
態に対応したパターンを用いて判断を行っている。Further, according to the present invention, the day / night judging means for judging by detecting whether the fall of the awakening level corresponds to daytime, dusk, dawn or night, and creating means for creating the pattern. Creates different patterns for daytime, dusk, dawn, and night, and the day / night judging means makes judgments using patterns corresponding to daytime, dusk, dawn, and night.
Further, according to the present invention, it has a traveling state detecting means for detecting a traveling state of the vehicle which is being detected at the time of detecting a decrease in the awakening level, and the judging means detects the traveling state of the vehicle from the detection result of the traveling state detecting means. The creating means for judging the running state and creating the pattern creates a pattern corresponding to the running state, and the judging means makes the judgment by using the pattern corresponding to the running state at the time of detecting the decrease in arousal level. .
【０００８】本発明に係る覚醒度低下検出装置によれ
ば、ドライバの視線を計測する計測手段によりデータを
累積して視線の方向の頻度分布パターンを作成する。そ
して、予め設けられた覚醒時の頻度分布パターンと比較
する。一般的に覚醒度が低下すると前記パターンは一点
に収束する傾向を示すので、これを利用して対象となる
ドライバの覚醒時のパターンと検出時のパターンとを比
較して、収束の傾向が表れたならば覚醒度低下と判断
し、警報を出力する。According to the wakefulness decrease detecting device of the present invention, the frequency distribution pattern in the direction of the line of sight is created by accumulating the data by the measuring means for measuring the line of sight of the driver. And it compares with the frequency distribution pattern at the time of awakening provided beforehand. Generally, when the awakening level decreases, the pattern tends to converge to a single point.Therefore, by using this pattern, the pattern of the target driver at the time of awakening and the pattern at the time of detection are compared to show the tendency of convergence. If so, it is determined that the awakening level has decreased and an alarm is output.
【０００９】また、走行環境が夜、昼、明け方或は夕暮
れ等による頻度パターンの変化についても予め基準のパ
ターンを設けておけば、精度のよい判断ができ、ステア
リングの操作量、アクセル開度、ブレーキ操作およびシ
フト位置等の走行状態についても同様に併せて判断すれ
ば、さらに精度の高い判断が可能となる。Further, if a reference pattern is provided in advance for a change in the frequency pattern due to the driving environment such as night, daytime, dawn or dusk, it is possible to make an accurate judgment, and the steering operation amount, accelerator opening degree, If the driving states such as the brake operation and the shift position are also similarly determined, the determination can be performed with higher accuracy.
【００１０】したがって、体にセンサ等を装着せずに覚
醒度低下が検出できる。Therefore, a decrease in arousal level can be detected without wearing a sensor or the like on the body.
【００１１】[0011]
【発明の実施の形態】以下、図面を参照して、本発明の
実施例を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１は本発明の覚醒度低下検出装置の例を
示す全体構成図であり、図示しない車両のキャブに設け
られたインストルメントパネル２０にはドライバの視線
の動きを画像とするＣＣＤカメラ１が取り付けられ、そ
のＣＣＤカメラ１とパネルには眼球に目的の反射像をう
得るため、眼球に赤外線を照射する赤外発光ダイオード
（以降赤外ＬＥＤという）２が設けられ、画像信号を解
析し、視線方向を算出する手段である画像解析装置３と
ＣＣＤカメラ１とは覚醒度を判断する判断手段である判
定装置９に電気回路で接続されている。なお、赤外ＬＥ
Ｄ２はＣＣＤカメラ１内のレンズ中心に設置してもよ
く、或いは図１において符号２ａで示すようにＣＣＤカ
メラ１内に設置せずに、ＣＣＤカメラ１からの光線をハ
ーフミラー（図示せず）で受けて赤外ＬＥＤ２の光路中
心とレンズ中心とが一致するように設置してもよい。FIG. 1 is an overall constitutional view showing an example of the awakening degree lowering detection device of the present invention. A CCD camera for displaying the movement of the driver's line of sight on an instrument panel 20 provided in a cab of a vehicle (not shown). 1 is attached, and an infrared light emitting diode (hereinafter referred to as an infrared LED) 2 that irradiates the eyeball with infrared rays is provided on the CCD camera 1 and the panel to obtain a desired reflected image on the eyeball, and the image signal is analyzed. However, the image analysis device 3 which is a means for calculating the line-of-sight direction and the CCD camera 1 are connected by an electric circuit to the determination device 9 which is a determination means for determining the awakening degree. In addition, infrared LE
D2 may be installed in the center of the lens in the CCD camera 1, or as shown by reference numeral 2a in FIG. 1, the D2 is not installed in the CCD camera 1 and a light beam from the CCD camera 1 is a half mirror (not shown). Alternatively, the infrared LED 2 may be installed such that the optical path center of the infrared LED 2 and the lens center coincide with each other.
【００１３】図２は図１の画像解析装置３と判定装置９
とのブロックダイヤグラムを示し、ＣＣＤカメラ１と２
つの赤外ＬＥＤ２とは画像解析装置３に電気回路で接続
され、その画像解析装置３は判定装置９に接続されてい
る。また、判定装置９は視線の頻度分布処理部４、昼夜
判断手段および走行状態検出手段の結果をも含めて判断
する覚醒度判定処理部５、警報出力手段６および車速セ
ンサ８に接続された信号入力手段７とで構成され、信号
入力手段７は覚醒度判定処理部５に接続されている。FIG. 2 shows the image analyzing device 3 and the judging device 9 of FIG.
Shows a block diagram of and CCD cameras 1 and 2
The two infrared LEDs 2 are connected to the image analysis device 3 by an electric circuit, and the image analysis device 3 is connected to the determination device 9. Further, the determination device 9 is a signal connected to the line-of-sight frequency distribution processing unit 4, the awakening degree determination processing unit 5 that determines the results including the results of the day / night determination unit and the running state detection unit, the alarm output unit 6, and the vehicle speed sensor 8. The signal input means 7 is connected to the awakening degree determination processing section 5.
【００１４】以下、図３を参照して、作用について説明
する。The operation will be described below with reference to FIG.
【００１５】作動に際し、まず、ステップＳ１で初期化
し、速度、視線方向データを読み込む（ステップＳ
２）。車両は走行中か否かを判断する（ステップＳ
３）。ＮＯの場合は戻り、ＹＥＳだったら、視線方向デ
ータを読みだし（ステップ、Ｓ４）、視線方向データの
頻度分布処理を行う（ステップＳ５）。ついで、覚醒時
のパターンである頻度分布の基準パターンを読み込み
（ステップＳ６）、ステップＳ５の視線方向の頻度分布
と比較し、覚醒度が低下したか否か判断する（ステップ
Ｓ７）。ＮＯの場合は戻り、ＹＥＳだったら、その低下
の度合いはレベル２か否かを判断する（ステップＳ
８）。ＮＯの場合は警報レベル１をＯＮする（ステップ
Ｓ１０）。ＹＥＳだったら、レベル３か否か判断し（ス
テップＳ９）、ＮＯの場合は警報レベル２をＯＮし（ス
テップＳ１１）、ＹＥＳだったら、警報レベル３を０Ｎ
して（ステップＳ１２）リターンし、制御を終わる。In operation, first, initialization is performed in step S1 and speed and line-of-sight data are read (step S1).
2). It is determined whether the vehicle is running (step S
3). If NO, the process returns, and if YES, the line-of-sight direction data is read (step S4), and frequency distribution processing of the line-of-sight direction data is performed (step S5). Next, the reference pattern of the frequency distribution, which is the pattern at the time of awakening, is read (step S6) and compared with the frequency distribution in the line-of-sight direction of step S5 to determine whether the awakening degree has decreased (step S7). If NO, the process returns, and if YES, it is determined whether or not the degree of decrease is level 2 (step S
8). If NO, alarm level 1 is turned on (step S10). If YES, it is judged whether or not it is level 3 (step S9), and if NO, alarm level 2 is turned ON (step S11), and if YES, alarm level 3 is set to 0N.
Then (step S12), the process returns and the control ends.
【００１６】そして、警報レベル１、２、３は例えばレ
ベル１は表示、レベル２はブザー、レベル３は光の点滅
というように区分しておけばドライバは容易に判断出来
る。なお、図４はドライバ視野分割の例を示し、このＸ
−Ｙ座標に視線の頻度分布を積算したものが図５に示す
視線頻度分布となる。ここで、符号２６はサイドミラ
ー、符号２７はフロントガラスをそれぞれ示している。If the warning levels 1, 2, and 3 are divided into, for example, level 1 is displayed, level 2 is a buzzer, and level 3 is blinking light, the driver can easily judge. It should be noted that FIG. 4 shows an example of driver field of view division.
The line-of-sight frequency distribution shown in FIG. 5 is obtained by adding the line-of-sight frequency distribution to the −Y coordinate. Here, reference numeral 26 is a side mirror, and reference numeral 27 is a windshield.
【００１７】したがって、ドライバの体にセンサを装着
することなく覚醒度低下を検出しドライバに報知するこ
とが出来る。Therefore, it is possible to detect the decrease in arousal level and notify the driver without mounting the sensor on the driver's body.
【００１８】図６は本発明の別の実施例の画像解析装置
３と判定装置９のブロックダイヤグラムを示し、第１実
施例にたいし、照度センサ１０を追加して判定装置９の
信号入力手段７に接続し昼、夜、夕暮れ或は明け方を照
度により異なるパターンとして判定し、それらを判定の
環境条件として覚醒度低下をより高い確度で判定する様
にしたものである。FIG. 6 shows a block diagram of the image analysis device 3 and the judgment device 9 according to another embodiment of the present invention, which is different from the first embodiment in that an illuminance sensor 10 is added and the signal input means of the judgment device 9 is added. 7 is used to determine day, night, dusk, or dawn as different patterns depending on the illuminance, and these are set as environmental conditions for the determination so that a decrease in arousal level is determined with higher accuracy.
【００１９】作用については、第１実施例と基本的に同
じであるので、異なる部分だけ図７を参照して説明す
る。Since the operation is basically the same as that of the first embodiment, only different parts will be described with reference to FIG.
【００２０】ステップＳ２に照度データが追加されこと
以外ステップＳ８までは基本的に同じであり、ステップ
Ｓ９で昼か否か判断する。ＹＥＳだったら、昼のパター
ンを読み込み覚醒度低下したか否か判断し、ＹＥＳだっ
たら、警報をＯＮする（ステップＳ１１、Ｓ１４、Ｓ１
７）。ステップＳ９でＮＯの場合は、夜か否か判断し、
ＮＯの場合は夜、昼以外のパターンを読み込み、覚醒度
低下か否か判断し、ＹＥＳだったら、警報をＯＮし、Ｎ
Ｏの場合はリタンする（ステップＳ１０、Ｓ１２、Ｓ１
５、Ｓ１７）。スッテップＳ１０でＹＥＳの場合は、夜
のパタンを読み込み覚醒度低下か否か判断し、ＹＥＳだ
ったら、警報ををＯＮし、ＮＯの場合はリタンして制御
を終わる（ステップＳ１３、Ｓ１６、Ｓ１７）。The procedure is basically the same up to step S8 except that the illuminance data is added to step S2, and it is determined whether or not it is noon in step S9. If YES, the daytime pattern is read to determine whether or not the alertness has decreased, and if YES, an alarm is turned ON (steps S11, S14, S1).
7). If NO in step S9, it is determined whether it is night,
In the case of NO, a pattern other than night and day is read, and it is judged whether or not the wakefulness is lowered. If YES, the alarm is turned ON and N
If it is O, it is returned (steps S10, S12, S1).
5, S17). In the case of YES in step S10, the night pattern is read to determine whether or not the wakefulness has decreased, and in the case of YES, the alarm is turned ON, and in the case of NO, the control is returned and the control ends (steps S13, S16, S17). .
【００２１】環境条件を含めて判断しているので、より
的確で確度が高い判断が可能となる。Since the judgment is made in consideration of the environmental conditions, more accurate and highly accurate judgment can be made.
【００２２】図８は、本発明のその他の実施例を示し、
第１実施例に比し、ステアリングセンサ１１、アクセル
センサ１２、ブレーキセンサ１３およびシフトセンサ１
４を判定装置９の信号入力手段７にそれぞれ接続したも
ので、走行状態を組み入れて覚醒度低下を判断するよう
にしている。FIG. 8 shows another embodiment of the present invention,
Compared to the first embodiment, the steering sensor 11, the accelerator sensor 12, the brake sensor 13 and the shift sensor 1
4 are connected to the signal input means 7 of the determination device 9, respectively, and the running state is incorporated to determine the decrease in awakening degree.
【００２３】以下、図９を参照して、作用について説明
する。The operation will be described below with reference to FIG.
【００２４】走行中であれば、視線、ステアリング、ア
クセル、ブレーキ、シフトの各データを読み込み（ステ
ップＳ４）、視線頻度分布処理し、走行形態を算出処理
し（ステップＳ５、Ｓ６）、基準パタンと大きく異なる
か否か判断する（ステップＳ７）。ＮＯの場合は戻り、
ＹＥＳだったら、警報出力をＯＮし（ステップＳ８）、
リタンして制御を終わる。If the vehicle is running, each data of the line of sight, steering, accelerator, brake, and shift is read (step S4), the line of sight frequency distribution process is performed, and the running form is calculated (steps S5 and S6). It is determined whether there is a large difference (step S7). If NO, return
If YES, turn on the alarm output (step S8),
Return and finish the control.
【００２５】走行状態を組み合わせて判定しているの
で、確度の高い判断が出来る。Since the judgment is made by combining the traveling states, the judgment can be made with high accuracy.
【００２６】したがって、ドライバのくせや、走行する
路線、時間帯等により組み合わせる要素を適切に選択す
れば、要求にあった覚醒度低下検出装置を提供出来る。Therefore, by appropriately selecting the elements to be combined depending on the driver's habit, the route to be traveled, the time zone, etc., it is possible to provide the awakening degree lowering detection device which meets the demand.
【００２７】[0027]
【発明の効果】本発明は上記のように構成されており、
以下の優れた効果を奏することができる。 （１） ドライバの体にセンサ等を装着しないで覚醒度
低下を検出するので、ドライバの疲労がなく、実用性が
高い。 （２） 昼と夜および夕暮れ或いは明け方における視線
の変化に対応して覚醒度低下が検出出来るので、判定の
確度が高い。 （３） 高速、郊外路や市街地等の走行状態を検出し、
それぞれの走行状態に合ったパターンで判定できるの
で、確度の高い判定が出来る。 （４） したがって、目的に合ったパターンを選択する
ことで効率のよい覚醒度低下検出装置を提供できる。The present invention is configured as described above,
The following excellent effects can be obtained. (1) Since a decrease in arousal level is detected without mounting a sensor or the like on the driver's body, the driver is not fatigued and is highly practical. (2) Since the decrease in arousal level can be detected in response to changes in the line of sight at daytime, night, dusk, or dawn, the accuracy of determination is high. (3) Detecting running conditions such as high speed, suburban roads and urban areas,
Since the judgment can be made in a pattern suitable for each running condition, highly accurate judgment can be made. (4) Therefore, it is possible to provide an efficient awakening degree detection device by selecting a pattern suitable for the purpose.
【図１】本発明の一実施例を示す全体構成斜視図。FIG. 1 is a perspective view of an overall configuration showing an embodiment of the present invention.
【図２】図１の制御のブロック図。FIG. 2 is a block diagram of the control shown in FIG.
【図３】図１の制御のフローチャート図。FIG. 3 is a flowchart of the control in FIG. 1;
【図４】ドライバの視野分割状況を示す図。FIG. 4 is a diagram showing a field of view division state of a driver.
【図５】視線頻度分布の例を示す図。FIG. 5 is a diagram showing an example of a gaze frequency distribution.
【図６】本発明の別の実施例の制御のブロック図。FIG. 6 is a block diagram of control according to another embodiment of the present invention.
【図７】図６の制御のフローチャート図。FIG. 7 is a flowchart of the control of FIG.
【図８】本発明のその他の実施例の制御のブロック図。FIG. 8 is a control block diagram according to another embodiment of the present invention.
【図９】図８の制御のフローチャート図。9 is a flowchart of the control of FIG.
１・・・ＣＣＤカメラ ２・・・赤外ＬＥＤ ３・・・画像解析装置 ９・・・判定装置 ２１・・・ステアリングハンドル ２６・・・サイドミラー ２７・・・フロントガラス 1 ... CCD camera 2 ... Infrared LED 3 ... Image analysis device 9 ... Judgment device 21 ... Steering handle 26 ... Side mirror 27 ... Windshield
Claims (4)
分布パターンを作成する作成手段と、覚醒度の低下検出
時における前記パターンと、予め作成された覚醒時にお
ける前記パターンとを比較して覚醒度が低下しているか
否かを判断する判断手段と、その判断手段により覚醒度
が低下していると判断された場合に警報を発する警報発
生手段とを含む事を特徴とする覚醒度低下検出装置。1. Comparing a measuring means for measuring a line of sight, a creating means for creating a frequency distribution pattern of the line of sight, the pattern at the time of detecting a decrease in arousal level, and the previously created pattern at the time of awakening. Decreased arousal level characterized by including a judgment means for judging whether or not the arousal level is decreased, and an alarm generation means for issuing an alarm if the judgment part determines that the arousal level is decreased Detection device.
ベルで判断し、かつ複数のレベルの各々に対応した判断
信号を出力するよう構成され、前記警報発生手段は前記
レベルの各々に対応した警報を発する様に構成されてい
る請求項１に記載の覚醒度低下検出装置。2. The determination means is configured to determine a decrease in arousal level at a plurality of levels and output a determination signal corresponding to each of the plurality of levels, and the alarm generation means corresponds to each of the levels. The wakefulness decrease detecting device according to claim 1, which is configured to issue a warning.
け方、夜の何れに該当するかを検出して判断する昼夜判
断手段と、前記パターンを作成する作成手段は昼、夕暮
れ或は明け方、夜で異なるパターンを作成し、前記昼夜
判断手段は昼、夕暮れ或は明け方、夜に対応するパター
ンを用いて判断を行う請求項１或は２に記載の覚醒度低
下検出装置。3. A day / night judging means for judging whether a decrease in arousal level corresponds to daytime, dusk or dawn, and night, and a creating means for creating the pattern are daytime, dusk or 3. The awakening degree reduction detection device according to claim 1, wherein different patterns are created for dawn and night, and the day and night determination means makes a determination using a pattern corresponding to day, dusk or dawn and night.
る車両の走行状態を検出する走行状態検出手段を有し、
前記判断手段は走行状態検出手段の検出結果から当該車
両の走行状態を判断し、前記パターンを作成する作成手
段は走行状態に対応したパターンを作成し、さらに前記
判断手段は覚醒度の低下検出時における走行状態に対応
したパターンを用いて判断を行う請求項１、２、３の何
れか１つに記載の覚醒度低下検出装置。4. A running state detecting means for detecting a running state of a vehicle, which is being detected when a decrease in awakening level is detected,
The determination means determines the traveling state of the vehicle from the detection result of the traveling state detection means, the creating means for creating the pattern creates a pattern corresponding to the running state, and the determining means further detects the decrease in awakening degree. The awakening degree reduction detection device according to claim 1, wherein the determination is performed using a pattern corresponding to the running state in FIG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17322195A JP3739113B2 (en) | 1995-07-10 | 1995-07-10 | Awakening level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17322195A JP3739113B2 (en) | 1995-07-10 | 1995-07-10 | Awakening level detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0920157A true JPH0920157A (en) | 1997-01-21 |
| JP3739113B2 JP3739113B2 (en) | 2006-01-25 |
Family
ID=15956384
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17322195A Expired - Lifetime JP3739113B2 (en) | 1995-07-10 | 1995-07-10 | Awakening level detection device |
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| Country | Link |
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| JP (1) | JP3739113B2 (en) |
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| JP2010131401A (en) * | 2002-10-15 | 2010-06-17 | Volvo Technology Corp | Method and arrangement for interpreting subjects head and eye activity |
| KR20160067681A (en) * | 2014-12-04 | 2016-06-14 | 현대모비스 주식회사 | Method for analyzing driving concentration level of driver |
| JP2017045351A (en) * | 2015-08-28 | 2017-03-02 | トヨタ自動車株式会社 | Vehicle driving support device, vehicle driving support method and program |
| US9656605B1 (en) | 2015-11-26 | 2017-05-23 | Hyundai Motor Company | Vehicle and control method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP3739113B2 (en) | 2006-01-25 |
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