公开(公告)号：US20120308082A1

公开(公告)日：2012-12-06

申请号：US13486366

申请日：2012-06-01

申请人： Toshikazu Murao ,  Takayuki Kimura ,  Kentarou Shiota ,  Noriaki Shirai

发明人： Toshikazu Murao ,  Takayuki Kimura ,  Kentarou Shiota ,  Noriaki Shirai

IPC分类号： G06K9/62

CPC分类号： G06K9/00825 ,  G06K9/38 ,  G06K9/62

摘要： A recognition object detecting apparatus is provided which includes an imaging unit which generates image data representing a taken image, and a detection unit which detects a recognition object from the image represented by the image data. The imaging unit has a characteristic in which a relation between luminance and output pixel values varies depending on a luminance range. The detection unit binarizes the output pixel values of the image represented by the image data by using a plurality of threshold values to generate a to plurality of binary images, and detects the recognition object based on the plurality of binary images.

摘要翻译： 提供了一种识别对象检测装置，其包括生成表示拍摄图像的图像数据的成像单元和从由图像数据表示的图像中检测识别对象的检测单元。 成像单元具有其中亮度和输出像素值之间的关系根据亮度范围而变化的特性。 检测单元通过使用多个阈值对由图像数据表示的图像的输出像素值进行二值化，以生成多个二进制图像，并且基于多个二进制图像来检测识别对象。

公开(公告)号：US08953839B2

公开(公告)日：2015-02-10

申请号：US13486366

申请日：2012-06-01

申请人： Toshikazu Murao ,  Takayuki Kimura ,  Kentarou Shiota ,  Noriaki Shirai

发明人： Toshikazu Murao ,  Takayuki Kimura ,  Kentarou Shiota ,  Noriaki Shirai

IPC分类号： G06K9/00 ,  G06K9/62 ,  G06K9/38

CPC分类号： G06K9/00825 ,  G06K9/38 ,  G06K9/62

摘要： A recognition object detecting apparatus is provided which includes an imaging unit which generates image data representing a taken image, and a detection unit which detects a recognition object from the image represented by the image data. The imaging unit has a characteristic in which a relation between luminance and output pixel values varies depending on a luminance range. The detection unit binarizes the output pixel values of the image represented by the image data by using a plurality of threshold values to generate a plurality of binary images, and detects the recognition object based on the plurality of binary images.

摘要翻译： 提供了一种识别对象检测装置，其包括生成表示拍摄图像的图像数据的成像单元和从由图像数据表示的图像中检测识别对象的检测单元。 成像单元具有其中亮度和输出像素值之间的关系根据亮度范围而变化的特性。 检测单元通过使用多个阈值对由图像数据表示的图像的输出像素值进行二值化，以生成多个二进制图像，并且基于多个二进制图像来检测识别对象。

公开(公告)号：US20140055572A1

公开(公告)日：2014-02-27

申请号：US14110066

申请日：2012-04-02

申请人： Noriaki Shirai ,  Masaki Masuda

发明人： Noriaki Shirai ,  Masaki Masuda

IPC分类号： H04N13/02

CPC分类号： H04N13/20 ,  H04N5/2258 ,  H04N5/2355 ,  H04N13/239

摘要： An image processing apparatus for a vehicle characterized in that the apparatus includes a first imaging section, a second imaging section, a switching section which switches exposure controls of the first imaging section and the second imaging section to an exposure control for recognizing an object placed on a road and a lamp or to an exposure control for recognizing a three-dimensional object, and a detection section which detects the object placed on a road and the lamp or the three-dimensional object from images captured by the first imaging section and the second imaging section, wherein under the exposure control for recognizing an object placed on a road and a lamp, exposure of the first imaging section and exposure of the second imaging section are different from each other.

摘要翻译： 一种用于车辆的图像处理装置，其特征在于，所述装置包括第一成像部分，第二成像部分，切换部分，其将第一成像部分和第二成像部分的曝光控制切换到用于识别放置在其上的物体的曝光控制 道路和灯或用于识别三维物体的曝光控制;以及检测部，其从由第一摄像部和第二摄像部拍摄的图像中检测放置在道路上的物体​​，灯或三维物体 成像部分，其中在用于识别放置在道路上的物体​​和灯的曝光控制下，第一成像部分的曝光和第二成像部分的曝光彼此不同。

公开(公告)号：US06657704B2

公开(公告)日：2003-12-02

申请号：US10157230

申请日：2002-05-30

申请人： Noriaki Shirai ,  Katsuhiro Morikawa

发明人： Noriaki Shirai ,  Katsuhiro Morikawa

IPC分类号： G01C308

CPC分类号： G01S17/36 ,  G01S7/493 ,  G01S13/288

摘要： A forward electromagnetic wave is generated in accordance with a succession of pseudo random noise code signals. An echo electromagnetic wave caused by reflection of the forward electromagnetic wave at an object is converted into a received signal. Direct-current and low-frequency components are removed from the received signal to generate a filtering-resultant signal. The filtering-resultant signal is compared with a preset decision reference voltage to generate a binary signal. The binary signal is sampled into received data. Calculation is made as to a correlation between the received data and the pseudo random noise code signal. The distance to the object is computed on the basis of the calculated correlation. The pseudo random noise code signal is repetitively generated to produce a succession of the pseudo random noise code signals during a surplus time covering a stabilization time taken by the received signal to stabilize in direct-current voltage level.

公开(公告)号：US06650235B2

公开(公告)日：2003-11-18

申请号：US09892499

申请日：2001-06-28

申请人： Noriaki Shirai ,  Yoshie Samukawa ,  Keiji Matsuoka

发明人： Noriaki Shirai ,  Yoshie Samukawa ,  Keiji Matsuoka

IPC分类号： B60Q100

CPC分类号： G01S17/936 ,  B60Q9/008 ,  G01S7/4802 ,  G01S2013/9353 ,  G01S2013/9367

摘要： A transmission wave is applied to a predetermined range in a width-wise direction of a subject vehicle. Objects located ahead of the subject vehicle are recognized on the basis of reflected waves which result from reflections of the transmission wave. The reflected waves are converted into a received signal. Detection is made regarding a variation in an intensity of the received signal along a direction corresponding to the width-wise direction of the subject vehicle. The received signal is separated into a first signal portion and a second signal portion on the basis of the detected signal intensity variation. The first signal portion corresponds to a scattered portion of the transmission wave. The second signal portion corresponds to an unscattered portion of the transmission wave. Objects are recognized on the basis of the second signal portion.

摘要翻译： 将传输波施加到本车辆的宽度方向上的预定范围。 基于由透射波的反射产生的反射波来识别位于主体车辆前方的物体。 反射波被转换成接收信号。 对沿着与本车辆的宽度方向对应的方向的接收信号的强度的变化进行检测。 基于检测到的信号强度变化，接收到的信号被分离成第一信号部分和第二信号部分。 第一信号部分对应于发射波的散射部分。 第二信号部分对应于发射波的未散射部分。 基于第二信号部分识别对象。

公开(公告)号：US06593873B2

公开(公告)日：2003-07-15

申请号：US09909873

申请日：2001-07-23

申请人： Yoshie Samukawa ,  Keiji Matsuoka ,  Hiroshi Ookata ,  Toyohito Nozawa ,  Noriaki Shirai

发明人： Yoshie Samukawa ,  Keiji Matsuoka ,  Hiroshi Ookata ,  Toyohito Nozawa ,  Noriaki Shirai

IPC分类号： G01S1300

CPC分类号： G01S13/931 ,  G01S13/426 ,  G01S13/726 ,  G01S2013/9325 ,  G01S2013/9346 ,  G01S2013/935 ,  G01S2013/9353

摘要： An obstacle recognition system for automotive vehicles is provided which is designed to recognize targets such as preceding vehicles to be tracked by a radar by grouping data elements derived through a scan of a frontal detection range using laser pulses. The system determines the radius of a curve in a road on which a system vehicle is traveling and shifts one of the data elements from which the grouping operation is to be initiated as a function of the radius of the curve, thereby enabling the recognition of the targets without decreasing the control reliability even when the system vehicle is turning the curve.

公开(公告)号：US5751211A

公开(公告)日：1998-05-12

申请号：US777196

申请日：1996-12-27

申请人： Noriaki Shirai ,  Katsuhiko Hibino ,  Takao Nishimura

发明人： Noriaki Shirai ,  Katsuhiko Hibino ,  Takao Nishimura

IPC分类号： B60R21/00 ,  B60K28/10 ,  B60Q1/00 ,  B60W30/00 ,  B60W40/10 ,  B60W40/109 ,  G01S7/295 ,  G01S13/44 ,  G01S13/60 ,  G01S13/93 ,  G01S17/88 ,  G01S17/93 ,  G03C1/16 ,  G08G1/16

CPC分类号： G01S17/936 ,  B60K28/10 ,  B60W10/04 ,  B60W10/10 ,  B60W30/18 ,  B60W30/1819 ,  G01S13/931 ,  G03C1/16 ,  B60W2550/10 ,  B60W2550/143 ,  G01S13/44 ,  G01S2013/9321 ,  G01S2013/9325 ,  G01S2013/9339 ,  G01S2013/9346 ,  G01S2013/935 ,  G01S2013/9353 ,  G01S2013/9364 ,  G01S2013/9375 ,  Y10S367/909

摘要： As provided here, an obstacle warning system for a vehicle is capable of issuing an alarm accurately according to the curved state of a road. When the road is curved, the system sets the correction time counter on the basis of the following conditions: whether or not the curvature radius of the curved road is small; whether or not a guardrail is detected immediately ahead of the vehicle; whether or not an erroneously-recognized object, such as a set of guardrail reflectors exhibiting large relative acceleration is immediately ahead of the vehicle; and whether or not the number of obstacles recognized reaches a value indicating that the vehicle is approaching a curved section of the road. When a stationary object enters the field of view indicating that there is a possibility of a collision, the obstacle warning system corrects the warning distance in response to the value of the correction time counter, thus making it possible to avoid a false alarm during cornering.

摘要翻译： 如这里所提供的，车辆的障碍物报警系统能够根据道路的弯曲状态准确地发出报警。 当道路弯曲时，系统基于以下条件设置校正时间计数器：曲面道路的曲率半径是否小; 是否立即在车辆前方检测到护栏; 是否在车辆之前立即将诸如表现出相对加速度较大的一组护栏反射器的错误识别的物体， 以及所识别的障碍物的数量是否达到表示车辆正在接近道路的弯曲部分的值。 当静止物体进入指示存在碰撞的可能性的视场时，障碍物报警系统响应于校正时间计数器的值来校正警告距离，从而可以避免转弯期间的假警报。

公开(公告)号：US5606740A

公开(公告)日：1997-02-25

申请号：US190524

申请日：1994-02-02

申请人： Kimitoshi Niratsuka ,  Noriaki Shirai ,  Hirokazu Tanaka

发明人： Kimitoshi Niratsuka ,  Noriaki Shirai ,  Hirokazu Tanaka

IPC分类号： H02M3/155 ,  H04B1/16 ,  H04B7/26

CPC分类号： H04B1/1607 ,  H02M3/155

摘要： A power-supply control circuit comprises a power-supply conversion circuit for converting a primary power-supply voltage into a secondary power-supply voltage; a first switching element for placing the power-supply conversion circuit into an active state or an inactive stage; a capacitor for smoothing the secondary power-supply voltage; a second switching element for placing a load circuit powered by the smoothed secondary power-supply voltage into an active state or an inactive state; and a control circuit for supplying a control mode signal to the first switching element and the second switching element, respectively. A radio select call receiver comprises a radio reception unit driven by a first power-supply voltage for receiving radio carrier waves and identifying a unique call signal conveyed by the radio carrier waves; a signal processing unit performing various kinds of call processing based on the unique call signal; and a power-supply control circuit. The power-supply circuit comprises a power-supply conversion circuit for converting a primary power-supply voltage into a secondary power-supply voltage, a first switching element for placing the power-supply conversion circuit into an active state or an inactive state, a capacitor for smoothing the secondary power-supply voltage, a second switching element for placing a signal processing unit driven by the smoothed secondary power-supply voltage into an active state or an inactive state, and a control circuit for supplying a control mode signal to the first switching element and the second switching element, respectively.

摘要翻译： 电源控制电路包括用于将主电源电压转换为二次电源电压的电源转换电路; 用于将电源转换电路置于活动状态或非活动阶段的第一开关元件; 用于平滑次级电源电压的电容器; 第二开关元件，用于将由平滑的次级电源电压供电的负载电路放置到活动状态或非活动状态; 以及用于分别向第一开关元件和第二开关元件提供控制模式信号的控制电路。 无线电选择呼叫接收机包括由用于接收无线电载波的第一电源电压驱动并识别由无线电载波传送的唯一呼叫信号的无线电接收单元; 信号处理单元，其基于所述唯一呼叫信号执行各种呼叫处理; 和电源控制电路。 电源电路包括用于将主电源电压转换为二次电源电压的电源转换电路，用于将电源转换电路置于活动状态或无效状态的第一开关元件， 用于平滑次级电源电压的电容器，用于将由平滑的次级电源电压驱动的信号处理单元放置到活动状态或非活动状态的第二开关元件，以及用于将控制模式信号提供给 第一开关元件和第二开关元件。

公开(公告)号：US20050225479A1

公开(公告)日：2005-10-13

申请号：US11100154

申请日：2005-04-06

申请人： Noriaki Shirai

发明人： Noriaki Shirai

IPC分类号： G01B11/00 ,  B60R1/00 ,  B60R21/00 ,  G01B21/00 ,  G01C3/00 ,  G01S7/41 ,  G01S13/86 ,  G01S13/93 ,  G01S17/93 ,  G01V8/10 ,  G08G1/16

CPC分类号： G01S13/93 ,  G01S13/867

摘要： A device including a radar and a camera for detecting an object located in front of an automobile is mounted on the automobile. The radar detects a distance from the automobile to the front object, and the camera takes an image of the object. When the object such as a preceding vehicle moves out of a region detectable by the radar while remaining in a region covered by the camera, a present distance to the object is calculated based on the distance previously detected by the radar and memorized in a memory and a present object image taken by the camera. More particularly, the present distance is calculated by multiplying the memorized distance by a ratio of an object size in the memorized image to an object size in the present image.

摘要翻译： 包括用于检测位于汽车前方的物体的雷达和相机的装置安装在汽车上。 雷达检测到从汽车到前方物体的距离，摄像机拍摄物体的图像。 当诸如前一车辆的物体在保持在由照相机覆盖的区域内的情况下移动到可被雷达检测的区域之外时，基于先前由雷达检测到并存储在存储器中的距离来计算与物体的当前距离， 由相机拍摄的当前对象图像。 更具体地，通过将​​存储的距离乘以存储的图像中的对象尺寸与当前图像中的对象尺寸的比率来计算当前距离。

公开(公告)号：US06850752B2

公开(公告)日：2005-02-01

申请号：US10084151

申请日：2002-02-28

申请人： Wakako Hoshino ,  Noriaki Shirai

发明人： Wakako Hoshino ,  Noriaki Shirai

IPC分类号： H03D7/14 ,  H03F1/22 ,  H03F3/26 ,  H03H11/32 ,  H04B1/28

CPC分类号： H03F3/26 ,  H03F1/22 ,  H03F1/223 ,  H03F3/265 ,  H03F2200/294 ,  H03F2200/372

摘要： In a single-to-differential conversion circuit for converting a single signal into a differential signal formed of first and second signal components: a source-grounded (or emitter-grounded) first transistor receives the single signal at the drain (or collector); the gate (or base) and drain (or collector) of the first transistor are connected; the gate (or base) of a source-grounded (or emitter-grounded) second transistor is connected to the gate (or base) of the first transistor; the drain (or collector) of a gate-grounded (or base-grounded) third transistor outputs the first signal component; the source (or emitter) of the third transistor is connected to the drain (or collector) of the first transistor; the drain (or collector) of a gate-grounded (or base-grounded) fourth transistor outputs the second signal component; and the source (or emitter) of the fourth transistor is connected to the drain (or collector) of the second transistor.

摘要翻译： 在用于将单个信号转换为由第一和第二信号分量形成的差分信号的单差分转换电路中：源极接地（或发射极接地）第一晶体管在漏极（或集电极）处接收单个信号; 第一晶体管的栅极（或基极）和漏极（或集电极）被连接; 源极接地（或发射极接地）第二晶体管的栅极（或基极）连接到第一晶体管的栅极（或基极）; 栅极接地（或基极接地）第三晶体管的漏极（或集电极）输出第一信号分量; 第三晶体管的源极（或发射极）连接到第一晶体管的漏极（或集电极）; 栅极接地（或基极接地）第四晶体管的漏极（或集电极）输出第二信号分量; 并且第四晶体管的源极（或发射极）连接到第二晶体管的漏极（或集电极）。