Abstract: An observation allocating section exclusively allocates an observation point to each existing tracker in accordance with a distance between observation information acquired by an information acquiring section and observation information indicated by a predictive distribution. A hypothesis generating section generates a hypothesis likelihood and a hypothesis distribution, for each target tracker and for each hypothesis belonging to a hypothesis group including a first hypothesis and a second hypothesis. The first hypothesis is a hypothesis that the observation point is a result of observation of a subject target. The second hypothesis is a hypothesis that the observation point is not a result of observation of the subject target. The hypothesis likelihood is the likelihood of the hypothesis. The hypothesis distribution is the state distribution updated on the assumption that the hypothesis is correct.

Abstract: A mark detecting apparatus includes an imaging unit configured to generate an alignment mark image by imaging of an alignment mark on an object, a detecting unit configured to detect the alignment mark in the alignment mark image, and an adjusting unit configured to adjust a parameter relating to the imaging, based on a learning model generated by learning using the alignment mark image in which the alignment mark could not be detected and a first parameter as the parameter for the imaging of the alignment mark image in which the alignment mark could be detected. The adjusting unit acquires a second parameter as a result of inference processing based on the learning model. The imaging unit performs the imaging in a state where the parameter is adjusted to the second parameter.

Abstract: An engine air cleaner includes a cleaner element unit is housed within the upper cover body, and a skirt wall of the upper cover body extends further downward than the suction opening. A seal packing and the cleaner element unit are superimposed and fitted onto an outer periphery of an intake passage within the cleaner cover body. The seal packing is provided with a retaining projection that is tightly engaged with the intake passage. An air cleaner is disposed to be side by side with one side of the engine, a lower part of the cleaner cover body is joined integrally to and supported on the engine together with a carburetor via a pair of connecting bolts, and a reinforcing vertical wall portion of the cleaner cover body facing the engine across a gap is joined integrally to and supported on the engine via another connecting bolt.

Abstract: A power-storage-type engine starting system includes a coil spring for storing power to be used in starting the engine. An end of a crankshaft is configured to pass through a cylindrical shaft part and is passed through a one-way clutch attached to inside of an assist boss so that an assist boss and the one-way clutch can be provided at radially outside of the shaft end, whereby the crankshaft is made shorter.

Abstract: A power-storage-type engine starting system includes a coil spring for storing power to be used in starting the engine. An end of a crankshaft is configured to pass through a cylindrical shaft part and is passed through a one-way clutch attached to inside of an assist boss so that an assist boss and the one-way clutch can be provided at radially outside of the shaft end, whereby the crankshaft is made shorter.

Abstract: In an engine air cleaner, a suction opening (50) communicating with outside air and a discharge opening (16) communicating with an engine (E) are provided in an upper cover body (11) of a cleaner cover (10), a cleaner element unit (Ue) for cleaning the outside air sucked in via the suction opening (50) is housed within the upper cover body (11), and a skirt wall (11a) of the upper cover body (11) in the vicinity of the suction opening (50) extends further downward than the suction opening (50). This prevents raindrops running down the outer face of the cleaner cover body (11) from being sucked into the interior of the air cleaner via the suction opening (50).