US 12,094,330 B2
Traffic prediction apparatus, system, method, and non-transitory computer readable medium
Chaitanya Prasad Narisetty, Tokyo (JP); Akihiro Tanaka, Tokyo (JP); and Tomoyuki Hino, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/622,958
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Jul. 1, 2019, PCT No. PCT/JP2019/026131
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2021/001889, PCT Pub. Date Jan. 7, 2021.
Prior Publication US 2022/0262240 A1, Aug. 18, 2022
Int. Cl. G08G 1/01 (2006.01); G06N 20/00 (2019.01); G08G 1/04 (2006.01); G08G 1/042 (2006.01); G08G 1/052 (2006.01)
CPC G08G 1/0133 (2013.01) [G06N 20/00 (2019.01); G08G 1/0116 (2013.01); G08G 1/04 (2013.01); G08G 1/042 (2013.01); G08G 1/052 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A traffic prediction apparatus comprising:
at least one memory storing instructions, and
at least one processor configured to execute the instructions to:
acquire a plurality of pieces of waterfall data that each comprise a generation position of a vibration generated by a vehicle traveling on a road, a generation time of the vibration, and an amplitude of the vibration;
process each piece of waterfall data by transforming the each piece of waterfall data;
obtain a ground truth for each piece of waterfall data using a secondary acquisition mechanism;
generate a trained model by training a model using as training data a portion of the processed pieces of waterfall data and the ground truth, the ground truth used as labels for the portion of the processed pieces of water fall data;
predict a traffic property for each piece of processed waterfall data within a predetermined time range and within a predetermined position range, based on the trained model;
generate a graph of the pieces of waterfall data having a horizontal axis indicating distance from a predetermined point to the generation position of each piece of waterfall data and having a vertical axis indicating the generation time of each piece of waterfall data; and
control a ratio between the vertical axis and the horizontal axis of the graph.