Patents by Inventor Yi-Feng Su
Yi-Feng Su has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240104943Abstract: A method for detecting an interior condition of a vehicle is provided to use a camera device and a radar device to acquire images and point cloud datasets with respect to an interior space of the vehicle. A computing device generates a synthesized image based on the images and the point cloud datasets, obtains a skeleton feature dataset and a facial feature dataset with respect to a living object in the synthesized image, and determines the interior condition of the vehicle based on the skeleton feature dataset and the facial feature dataset.Type: ApplicationFiled: December 15, 2022Publication date: March 28, 2024Applicant: Automotive Research & Testing CenterInventors: Yi-Feng SU, Zi-Rong DING, Meng-Jiang HE
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Publication number: 20240079524Abstract: A semiconductor device comprises a first semiconductor structure, a second semiconductor structure located on the first semiconductor structure, and an active layer located between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure has a first conductivity type, and includes a plurality of first layers and a plurality of second layers alternately stacked. The second semiconductor structure has a second conductivity type opposite to the first conductivity type. The plurality of first layers and the plurality of second layers include indium and phosphorus, and the plurality of first layers and the plurality of second layers respectively have a first indium atomic percentage and a second indium atomic percentage. The second indium atomic percentage is different from the first indium atomic percentage.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Inventors: Wei-Jen HSUEH, Shih-Chang LEE, Kuo-Feng HUANG, Wen-Luh LIAO, Jiong-Chaso SU, Yi-Chieh LIN, Hsuan-Le LIN
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Publication number: 20230186642Abstract: An object detection method includes steps that are to be performed for each piece of point cloud data received from a lidar module, of selecting a first to-be-combined image from among images received from a camera device that corresponds in time to the piece of point cloud data, selecting a second to-be-combined image from among the images that is the Nth image before the first to-be-combined image in the time order, combining the first to-be-combined image and the second to-be-combined image to generate a combined image, generating a result image by incorporating the piece of point cloud data into the combined image, and inputting the result image into a trained machine learning model in order to determine a class to which each object in the result image belongs.Type: ApplicationFiled: December 15, 2021Publication date: June 15, 2023Inventors: Yun-Ling CHANG, Yi-Feng SU, Ying-Ren CHEN
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Publication number: 20180362083Abstract: A driving state warning method is used for judging a driving state by a vehicle path of a vehicle. An image recognizing step is for providing an image capturing device to capture an image and recognize a lane marking of a vehicle lane according to the image. A vehicle speed judging step is for providing a vehicle speed capturing device to judge an actual vehicle speed. A crossing lane judging step is for providing a processing unit to judge whether or not the vehicle is crossing the lane marking according to the image. A consciousness judging step is for calculating a displacement of the vehicle according to the image by the processing unit and comparing whether or not the displacement is greater than a threshold value for judging consciousness of the driver. Therefore, the present disclosure can easily perform installations without any directional light detecting device.Type: ApplicationFiled: June 15, 2017Publication date: December 20, 2018Inventors: Yi-Feng SU, Chan-Wei HSU, Hsueh-Lung LIAO
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Patent number: 10007825Abstract: A positioning system for positioning a to-be-positioned device includes three or more reference objects each providing individual unique feature information associated with a two-dimensional coordinate. A positioning device includes an image capturing unit obtaining image data of three of the reference objects, and a processing unit obtaining, based on the image data, three pixel positions corresponding respectively to the three reference objects in the image data, obtaining the two-dimensional coordinate of the location of the three reference objects, and estimating a positioning coordinate of the to-be-positioned device using a triangulation positioning method based on the three pixel positions, a focal length used for obtaining the image data and the two-dimensional coordinates.Type: GrantFiled: December 29, 2014Date of Patent: June 26, 2018Assignee: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Tian-Li Wang, Rong-Terng Juang, Chu-Yuan Hsu, Yi-Feng Su
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Publication number: 20160189383Abstract: A positioning system for positioning a to-be-positioned device includes three or more reference objects each providing individual unique feature information associated with a two-dimensional coordinate. A positioning device includes an image capturing unit obtaining image data of three of the reference objects, and a processing unit obtaining, based on the image data, three pixel positions corresponding respectively to the three reference objects in the image data, obtaining the two-dimensional coordinate of the location of the three reference objects, and estimating a positioning coordinate of the to-be-positioned device using a triangulation positioning method based on the three pixel positions, a focal length used for obtaining the image data and the two-dimensional coordinates.Type: ApplicationFiled: December 29, 2014Publication date: June 30, 2016Inventors: Tian-Li Wang, Rong-Terng Juang, Chu-Yuan Hsu, Yi-Feng Su
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Patent number: 9317106Abstract: An automatic correction device of a vehicle display system and method thereof, comprising following steps: firstly, transform an image of road in front into projection information, to calculate a coordinate model, then detect facial features of a driver, to calculate a face rotation angle and a facial features 3-D position of said driver, to estimate a position field of view for said driver looking to front. Then, said position field of view is substituted into an image overlap projection transformation formula, to generate an overlap error correction parameter. Subsequently, utilize said overlap error correction parameter to correct and update said coordinate model. Finally, utilize a display unit to project said corrected coordinate model to front of said driver, so that projection position of said coordinate model overlaps said position field of view of said driver.Type: GrantFiled: November 6, 2013Date of Patent: April 19, 2016Assignee: AUTOMOTIVE RESEARCH & TEST CENTERInventors: Yi-Feng Su, Jia-Xiu Liu, Yu-Sung Chen
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Patent number: 9116784Abstract: The present invention proposes a system and method for preventing a vehicle from rolling over in curved lane. The road images captured by the image capture devices are used to calculate road information. The road information together with the vehicular dynamic information, such as the speed and acceleration of the vehicle are used to predict the rollover angle and lateral acceleration of the vehicle moving on the curved lane. The height of the gravity center and critical rollover speed of the vehicle moving on the curved lane are worked out and used to define a vehicular rollover index. If the vehicular rollover index exceeds a preset value, the system warns the driver or directly controls the speed of the vehicle to prevent the vehicle from rolling over in the curved lane.Type: GrantFiled: December 11, 2012Date of Patent: August 25, 2015Assignee: Automotive Research & Test CenterInventors: Chi-Chun Yao, Jin-Yan Hsu, Chun-Hsiung Chen, Tsung-Hua Hsu, Yi-Feng Su
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Patent number: 9091558Abstract: An autonomous driver assistance system is integrated with a vehicular control system to constantly detect ambient road environment of the vehicle, identify a vehicle ahead with same driving route to a destination, and follow the vehicle ahead by autonomous driving to the destination. Signals of direction indicators of the vehicle ahead can be recognized to determine a driving direction and driving state of the vehicle ahead beforehand, thereby reducing the chances of emergency brake and collision and increasing driving efficiency. Without expensive radar detection equipment, the present invention can be easily integrated with a vehicular control system to tackle the high installation cost and integration difficulty of conventional autonomous driver assistance apparatuses.Type: GrantFiled: December 23, 2013Date of Patent: July 28, 2015Assignee: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Yi-Feng Su, Ming-Hung Li
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Publication number: 20150177007Abstract: An autonomous driver assistance system is integrated with a vehicular control system to constantly detect ambient road environment of the vehicle, identify a vehicle ahead with same driving route to a destination, and follow the vehicle ahead by autonomous driving to the destination. Signals of direction indicators of the vehicle ahead can be recognized to determine a driving direction and driving state of the vehicle ahead beforehand, thereby reducing the chances of emergency brake and collision and increasing driving efficiency. Without expensive radar detection equipment, the present invention can be easily integrated with a vehicular control system to tackle the high installation cost and integration difficulty of conventional autonomous driver assistance apparatuses.Type: ApplicationFiled: December 23, 2013Publication date: June 25, 2015Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Yi-Feng SU, Ming-Hung LI
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Patent number: 9045139Abstract: An intuitive eco-driving assistance system is mounted on a vehicle and has an input module, a control module and an output module. The control module is electrically connected to the input module and the output module. The output module acquires images ahead of the vehicle and speed signals for the control module to recognize a speed limit, traffic lights and a speed and distance of any obstacle on the images. Furthermore, according to the driving limits of the road and actual vehicle speed, the output module prompts for an eco-driving instruction and the speed limit meeting the road condition visually or audibly. Accordingly, the issue of conventional vehicles being structurally complicated and costly for conserving energy, only passively prompting fuel consumption, and consuming more fuel can be solved without requiring any additional and complicated system.Type: GrantFiled: December 20, 2012Date of Patent: June 2, 2015Assignee: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Yu-Sung Chen, Yi-Feng Su, Shung-Huang Chen, Yu-Long Chang, Chia-Hao Yang
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Patent number: 8913128Abstract: The present invention discloses an image-based barrier detection and warning system and a method thereof, wherein an image processing technology is used to establish ROI and verify whether a horizontal line signal exists, and wherein the image processing technology determines whether an object is a barrier via detecting contours of an object and detecting distance to the object, and wherein the system timely outputs warning signals and presents distance to a barrier when detecting the barrier. The image-based barrier detection and warning system enables the driver to watch the surroundings of the vehicle directly and clearly and learn the relative positions of barriers, whereby the driver can park more easily and safely.Type: GrantFiled: February 23, 2011Date of Patent: December 16, 2014Assignee: Automotive Research & Test CenterInventors: Yu-Hsiang Wu, Chia-Tseng Chen, Ming-Feng Hsieh, Yi-Feng Su
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Publication number: 20140176321Abstract: An intuitive eco-driving assistance system is mounted on a vehicle and has an input module, a control module and an output module. The control module is electrically connected to the input module and the output module. The output module acquires images ahead of the vehicle and speed signals for the control module to recognize a speed limit, traffic lights and a speed and distance of any obstacle on the images. Furthermore, according to the driving limits of the road and actual vehicle speed, the output module prompts for an eco-driving instruction and the speed limit meeting the road condition visually or audibly. Accordingly, the issue of conventional vehicles being structurally complicated and costly for conserving energy, only passively prompting fuel consumption, and consuming more fuel can be solved without requiring any additional and complicated system.Type: ApplicationFiled: December 20, 2012Publication date: June 26, 2014Applicant: AUTOMOTIVE RESEARCH & TESTING CENTERInventors: Yu-Sung Chen, Yi-Feng Su, Shung-Huang Chen, Yu-Long Chang, Chia-Hao Yang
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Publication number: 20140160012Abstract: An automatic correction device of a vehicle display system and method thereof, comprising following steps: firstly, transform an image of road in front into projection information, to calculate a coordinate model, then detect facial features of a driver, to calculate a face rotation angle and a facial features 3-D position of said driver, to estimate a position field of view for said driver looking to front. Then, said position field of view is substituted into an image overlap projection transformation formula, to generate an overlap error correction parameter. Subsequently, utilize said overlap error correction parameter to correct and update said coordinate model. Finally, utilize a display unit to project said corrected coordinate model to front of said driver, so that projection position of said coordinate model overlaps said position field of view of said driver.Type: ApplicationFiled: November 6, 2013Publication date: June 12, 2014Applicant: Automotive Research & Test CenterInventors: Yi-Feng SU, Jia-Xiu LIU, Yu-Sung CHEN
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Patent number: 8723660Abstract: The present invention discloses a dual-vision driving safety warning device and a method thereof. The device of the present invention comprises an image capture unit, an image processing unit, a vehicle status sensing unit, a warning judgment logic, and at least one warning unit. The image capture unit includes at least two image capture devices installed in a user's vehicle and capturing the images of the front traffic environment. The image processing unit processes the images and uses the vehicle status signals detected by the vehicle status sensing unit to calculate the distance between the user's vehicle and a front vehicle in the image. The warning judgment logic sends out a control signal when the user's vehicle deviates from a driving lane or approaches a front vehicle too much. The warning unit receives the control signal and sends out a warning signal, such as a sound or a flash, to remind the driver.Type: GrantFiled: September 3, 2010Date of Patent: May 13, 2014Assignee: Automotive Research & Test CenterInventors: Yu-Sung Chen, Yi-Feng Su, Chia-Tseng Chen
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Publication number: 20140081542Abstract: The present invention proposes a system and method for preventing a vehicle from rolling over in curved lane. The road images captured by the image capture devices are used to calculate road information. The road information together with the vehicular dynamic information, such as the speed and acceleration of the vehicle are used to predict the rollover angle and lateral acceleration of the vehicle moving on the curved lane. The height of the gravity center and critical rollover speed of the vehicle moving on the curved lane are worked out and used to define a vehicular rollover index. If the vehicular rollover index exceeds a preset value, the system warns the driver or directly controls the speed of the vehicle to prevent the vehicle from rolling over in the curved lane.Type: ApplicationFiled: December 11, 2012Publication date: March 20, 2014Applicant: AUTOMOTIVE RESEARCH & TEST CENTERInventors: Chi-Chun YAO, Jin-Yan HSU, Chun-Hsiung CHEN, Tsung-Hua HSU, Yi-Feng SU
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Patent number: 8600111Abstract: The present invention discloses a vehicular tilt-sensing method and an automatic headlight leveling system using the same. The method of the present invention comprises steps: using an image capture device to capture an image of the road and obtain at least one instantaneous lane marking line from the image; extending the instantaneous lane marking lines afar to obtain an instantaneous vanishing point; establishing an instantaneous horizontal line passing through the instantaneous vanishing point; calculating from the image the displacement between a datum horizontal line and the instantaneous horizontal line; and calculating the tilt angle with the displacement and the focal length of the image; using the tilt angle to generate a control signal to control level adjusting controllers to adjust headlights, whereby the headlights can provide optimized illumination to enhance night driving safety on a rugged road or in the case that the vehicle is unevenly loaded.Type: GrantFiled: October 8, 2009Date of Patent: December 3, 2013Assignee: Automotive Research & Test CenterInventors: Yi-Feng Su, Hsueh-Lung Liao
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Patent number: 8489287Abstract: A vehicle rollover prevention safety driving system, comprising: at least an image sensor, used to fetch road images in front of said vehicle; an image processor, connected to said image sensor, and is used to identify a drive lane in road images, and calculate a drive lane curvature, an inclination angle of said road, and relative positions of said vehicle and a lane marking; a vehicle conditions sensing module, used to sense dynamic information of a vehicle turning angle, a vehicle inclination angle, and a vehicle speed; a microprocessor, connected to said image processor and said vehicle conditions sensing module, and it calculates a rollover prediction point and a rollover threshold speed, and it issues a corresponding warning signal or a control signal; and an accelerator and brake controller, connected to said microprocessor, and it controls deceleration of said vehicle according to said control signal.Type: GrantFiled: December 31, 2010Date of Patent: July 16, 2013Assignee: Automotive Research & Test CenterInventors: Tsung-Hua Hsu, Chun-Hsiung Chen, Tzu-Chien Hsu, Yi-Feng Su, Hsueh-Lung Liao
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Publication number: 20130169679Abstract: A vehicle image display system and correction method thereof, applicable to a vehicle to perform vehicle information display, comprising following steps, fetch a front road image; obtain positions of a lane marking and an obstacle in front based on said front road image; after correction, calculate display information of said positions of said lane markings and said obstacles in front, to be overlapped with images of an actual traffic lane; utilize a motor control unit to adjust focal length or inclination angle of a projector unit, or inclination angle of a viewable panel, to produce overlap error correction values to correct said display information. Said projector unit projects large area display information overlapped entirely with images of said actual traffic lane onto said viewable panel or windshield, so that a driver can obtain vehicle driving information, to raise vehicle driving safety.Type: ApplicationFiled: December 30, 2011Publication date: July 4, 2013Applicant: AUTOMOTIVE RESEARCH & TEST CENTERInventors: YI-FENG SU, JIN-YI CHEN, CHIH-BIN CHIANG
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Patent number: 8311283Abstract: A method for detecting the lane departure of a vehicle includes an image recognition process and a deviation estimation process. The image recognition process includes the following steps: an image capturing step for capturing image frame data by using an image capturing unit; and a lane line recognition for analyzing the image frame data for determining the lane lines. By using a quadratic curve fitting equation, a plurality of lane line being detected so as to establish a road geometry estimation model. The road geometry estimation model is inputted into the deviation estimation process to detect the lane departure of the vehicle so as to alert the driver. Furthermore, an apparatus for detecting the deviation of the vehicle, comprising: an image capturing unit, a processing unit and a signal output unit.Type: GrantFiled: July 6, 2008Date of Patent: November 13, 2012Assignee: Automotive Research&Testing CenterInventors: Jui-Hung Wu, Jing-Fu Liu, Yi-Feng Su