Patents by Inventor Kazuya Kimita
Kazuya Kimita 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: 20240412506Abstract: An image processing device includes: an input unit that acquires each photographed image from a plurality of cameras installed in a vehicle; a photographing state detection unit that detects whether a malfunction has occurred in a photographing state of each of the photographed images; a likelihood calculation unit that calculates, for each of the cameras, a likelihood indicating a degree of malfunction of the photographing state on the basis of each of the photographed images; and a likelihood update unit that updates the likelihood to a new likelihood on a basis of a determination obtained by integrating the likelihoods for each of the cameras calculated by the likelihood calculation unit, in which the likelihood updated by the likelihood update unit is outputted as the likelihood for each of the cameras.Type: ApplicationFiled: August 25, 2022Publication date: December 12, 2024Applicant: HITACHI ASTEMO, LTD.Inventors: Kazuya KIMITA, Masato IMAI, Naoyuki TASHIRO, Kota IRIE
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Patent number: 7991549Abstract: A traffic information system including a travel history database retaining the data on the travel history of vehicle measured at a constant temporal or running interval; a link cost weighting pattern database for storing patterns for weighting the link costs of road links, used in the determination of the travel paths of vehicles; a vehicle ID/link cost weighting pattern set database retaining the data representing the matching of the vehicle IDs with their associated link cost weighting patterns used to determine the travel paths of the vehicles; a link cost weighting pattern selection unit selecting the patterns for weighting the link costs used to determine the travel paths of the vehicles on the basis of the vehicle IDs; and a vehicle ID/link cost weighting pattern matching unit recording the data representing the matching of the vehicle IDs with their associated link cost weighting patterns.Type: GrantFiled: January 24, 2008Date of Patent: August 2, 2011Assignee: Hitachi, Ltd.Inventors: Kazuya Kimita, Takayoshi Yokota, Koichiro Tanikoshi
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Patent number: 7899612Abstract: A traffic information system includes: a past information database for storing past information, which is collected for road links in a predetermined area, of a past mobile object on a road; a current information database for storing running information, which is collected for the road links in the predetermined area, of a current mobile object; link correlation analyzing means in which correlations of traffic information among each road link in the predetermined area are calculated from the past information stored in the past information database, and output as link correlation information among the road links; combination calculating means for calculating weighting information for obtaining the current information as a sum of the link correlation information; and traffic information estimating means for calculating estimated traffic information for a link where the current information is not collected based on the link correlation information and the weighting information.Type: GrantFiled: April 13, 2009Date of Patent: March 1, 2011Assignee: Hitachi, Ltd.Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Patent number: 7636630Abstract: There is provided a prediction calculation system capable of allowing a numerical traffic information to be predicted in such a manner that day factors and the like are reflected thereon. Even if a day whose combination of the day factors is the same as that of a prediction-target day, i.e., a day with the same instance, does not exist within a time-period during which past traffic information has been accumulated, the prediction calculation unit merges the past traffic information appropriately, thereby predicting traffic information corresponding to the objective combination of the day factors. Concretely, the prediction calculation unit combines some of characteristic quantities of the past traffic information on a day-unit basis, thereby approximately reconstructing and predicting the instance.Type: GrantFiled: July 27, 2005Date of Patent: December 22, 2009Assignee: Hitachi, Ltd.Inventors: Takumi Fushiki, Masatoshi Kumagai, Takayoshi Yokota, Kazuya Kimita
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Patent number: 7577513Abstract: In a congestion prediction using measurement data which is acquired by an on-road sensor or a probe car, and which includes none of explicit information about bottleneck points, with respect to time-sequence data on congestion ranges accumulated in the past, data on congestion front-end positions are summarized into plural clusters by the clustering. Representative value in each cluster is assumed as position of each bottleneck. A regression analysis, in which day factors are defined as independent variables, is performed with congestion length from each bottleneck point selected as the target. Here, the day factors refer to factors such as day of the week, national holiday/etc. It then becomes possible to precisely predict a future congestion length.Type: GrantFiled: August 19, 2005Date of Patent: August 18, 2009Assignee: Hitachi, Ltd.Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Publication number: 20090198441Abstract: A traffic information system includes: a past information database for storing past information, which is collected for road links in a predetermined area, of a past mobile object on a road; a current information database for storing running information, which is collected for the road links in the predetermined area, of a current mobile object; link correlation analyzing means in which correlations of traffic information among each road link in the predetermined area are calculated from the past information stored in the past information database, and output as link correlation information among the road links; combination calculating means for calculating weighting information for obtaining the current information as a sum of the link correlation information; and traffic information estimating means for calculating estimated traffic information for a link where the current information is not collected based on the link correlation information and the weighting information.Type: ApplicationFiled: April 13, 2009Publication date: August 6, 2009Applicant: Hitachi, Ltd.Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Patent number: 7536254Abstract: A traffic information system includes: a past information database for storing past information, which is collected for road links in a predetermined area, of a past mobile object on a road; a current information database for storing running information, which is collected for the road links in the predetermined area, of a current mobile object; link correlation analyzing means in which correlations of traffic information among each road link in the predetermined area are calculated from the past information stored in the past information database, and output as link correlation information among the road links; combination calculating means for calculating weighting information for obtaining the current information as a sum of the link correlation information; and traffic information estimating means for calculating estimated traffic information for a link where the current information is not collected based on the link correlation information and the weighting information.Type: GrantFiled: February 17, 2006Date of Patent: May 19, 2009Assignee: Hitachi, Ltd.Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Publication number: 20080243377Abstract: A traffic information system including a travel history database retaining the data on the travel history of vehicle measured at a constant temporal or running interval; a link cost weighting pattern database for storing patterns for weighting the link costs of road links, used in the determination of the travel paths of vehicles; a vehicle ID/link cost weighting pattern set database retaining the data representing the matching of the vehicle IDs with their associated link cost weighting patterns used to determine the travel paths of the vehicles; a link cost weighting pattern selection unit selecting the patterns for weighting the link costs used to determine the travel paths of the vehicles on the basis of the vehicle IDs; and a vehicle ID/link cost weighting pattern matching unit recording the data representing the matching of the vehicle IDs with their associated link cost weighting patterns.Type: ApplicationFiled: January 24, 2008Publication date: October 2, 2008Applicant: Hitachi, Ltd.Inventors: Kazuya Kimita, Takayoshi Yokota, Koichiro Tanikoshi
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Publication number: 20070058625Abstract: The in-vehicle terminal includes an additional link database where link data including a temporary link ID (Identification) before being given by a server and established by an authorization device; a new and old link IDs database where a new and old link IDs table is saved wherein an established link ID of a link ID after being authorized by the authorization device and the temporary link ID are made to correspond to each other; a transmitting and receiving unit for transmitting traffic information data including the established link ID; and a processing unit for acquiring the established link ID included in the traffic information data, referring to the new and old link IDs table stored in the new and old link IDs database, acquiring the temporary link ID made to correspond to the established link ID, and based on the temporary link ID, acquiring link data from the additional link database.Type: ApplicationFiled: September 12, 2006Publication date: March 15, 2007Applicant: Hitachi, Ltd.Inventors: Takumi Fushiki, Kazuya Kimita, Takayoshi Yokota, Masatoshi Kumagai
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Publication number: 20060206256Abstract: A traffic information system includes: a past information database for storing past information, which is colleted for road links in a predetermined area, of a past mobile object on a road; a current information database for storing running information, which is colleted for the road links in the predetermined area, of a current mobile object; link correlation analyzing means in which correlations of traffic information among each road link in the predetermined area are calculated from the past information stored in the past information database, and output as link correlation information among the road links; combination calculating means for calculating weighting information for obtaining the current information as a sum of the link correlation information; and traffic information estimating means for calculating estimated traffic information for a link where the current information is not collected based on the link correlation information and the weighting information.Type: ApplicationFiled: February 17, 2006Publication date: September 14, 2006Applicant: HITACHI, LTD.Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Publication number: 20060064234Abstract: In a congestion prediction using measurement data which is acquired by an on-road sensor or a probe car, and which includes none of explicit information about bottleneck points, with respect to time-sequence data on congestion ranges accumulated in the past, data on congestion front-end positions are summarized into plural clusters by the clustering. Representative value in each cluster is assumed as position of each bottleneck. A regression analysis, in which day factors are defined as independent variables, is performed with congestion length from each bottleneck point selected as the target. Here, the day factors refer to factors such as day of the week, national holiday/etc. It then becomes possible to precisely predict a future congestion length.Type: ApplicationFiled: August 19, 2005Publication date: March 23, 2006Inventors: Masatoshi Kumagai, Takumi Fushiki, Takayoshi Yokota, Kazuya Kimita
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Publication number: 20060025925Abstract: There is provided a prediction calculation system capable of allowing a numerical traffic information to be predicted in such a manner that day factors and the like are reflected thereon. Even if a day whose combination of the day factors is the same as that of a prediction-target day, i.e., a day with the same instance, does not exist within a time-period during which past traffic information has been accumulated, the prediction calculation unit merges the past traffic information appropriately, thereby predicting traffic information corresponding to the objective combination of the day factors. Concretely, the prediction calculation unit combines some of characteristic quantities of the past traffic information on a day-unit basis, thereby approximately reconstructing and predicting the instance.Type: ApplicationFiled: July 27, 2005Publication date: February 2, 2006Applicant: Hitachi, Ltd.Inventors: Takumi Fushiki, Masatoshi Kumagai, Takayoshi Yokota, Kazuya Kimita