Abstract: A method of acquiring feature information of a detected object is provided, including: controlling the detected object to pass through a detection apparatus; controlling an imaging system to perform radiation scanning on the detected object acquiring a radiation scanning image of the detected object acquiring feature information of the detected object through the radiation scanning image. The detected object includes a first part, a detection part and a second part sequentially in a first direction. The acquiring feature information of the detected object through the radiation scanning image includes: acquiring a first boundary line between the detection part and the first part and a second boundary line between the detection part and the second part through the radiation scanning image; and calculating a dimension between the first boundary line and the second boundary line in the first direction to acquire a dimension of the detection part in the first direction.

Abstract: A case for a portable electronic device, the portable electronic device having a housing that carries a first magnetic element capable of forming a first magnetic circuit through the housing with a magnetic element external to the portable electronic device capable of securing together the housing and the external magnetic element. The case can include a body having a bottom wall and side walls that combine to define a recessed region suitable for retaining the portable electronic device and a second magnetic element located at a position corresponding to the external magnetic element such that when the portable electronic device is carried in the recessed region, the second magnetic element forms a second magnetic circuit through the body with the external magnetic element that is capable of securing together the case and the external magnetic element.

Abstract: A case for a portable electronic device, the portable electronic device having a housing that carries a first magnetic element capable of forming a first magnetic circuit through the housing with a magnetic element external to the portable electronic device capable of securing together the housing and the external magnetic element. The case can include a body having a bottom wall and side walls that combine to define a recessed region suitable for retaining the portable electronic device and a second magnetic element located at a position corresponding to the external magnetic element such that when the portable electronic device is carried in the recessed region, the second magnetic element forms a second magnetic circuit through the body with the external magnetic element that is capable of securing together the case and the external magnetic element.