Abstract: An imaging disturbance detection device includes an estimation information obtaining unit that obtains pieces of disturbance estimation information indicating whether or not there is imaging disturbance on each of a plurality of imaging devices installed on a railroad car, which is estimated by comparing luminance of images taken by the imaging devices with predetermined reference luminance set; and a disturbance identifying unit that identifies, when it is estimated, on the basis of the obtained pieces of disturbance estimation information, that there is imaging disturbance on a first imaging device, whether or not there is imaging disturbance on a first imaging device on the basis of which one, presence or absence of imaging disturbance, is estimated for a second imaging device, and a length of a period during which it is continuously estimated that there is imaging disturbance on the first imaging device.

Abstract: In a still picture recording and reproducing apparatus, image data are recorded from a communication frame memory directly to a recording medium, thereby editing is carried out and reproduced data, title or the like is stored in a memory. The title is varied by a microcomputer and recorded directly in the recording medium to achieve editing. The still picture recording and reproducing apparatus has a signal changing circuit, a synchro detection circuit, a record format selection circuit, a recording apparatus, a display circuit, and a microcomputer to control these circuits. Recording capacity per one image is set in response to recording format, and the number of residual recordable sheets is displayed. At no-input state, recording is forbidden and this state is displayed. Also the recording format is recorded and at reproducing state, the recording format is detected and the circuit is changed by the signal changing circuit.