Face detection system

A face detection method of a face detection system, the face detection system including a terminal device capable of acquiring at least one two recorded video data files and a server communicably connected to the terminal device, the face detection method comprising:

• acquiring, in the terminal device, the two recorded video data files selected by a first user operation;
• transmitting the two recorded video data files from the terminal device to the server;
• converting, in the server, the received two recorded video data files into recorded video data one and recorded video data two having a predetermined format;
• detecting, in the server, one or more faces of one or more persons based on the converted recorded video data one and the recorded video data two;
• generating, in the server, one or more face cut-out images by cutting out regions of the detected faces;
• associating, in the server, information of image capturing time points at which the one or more persons corresponding to the face cut-out images are captured with the face cut-out images;
• transmitting the associated information from the server to the terminal device;
• displaying, in the terminal device, thumbnail images of the received face cut-out images and information of the image capturing time points from the recorded video data one side by side with thumbnail images of the received face cut-out images and information of the image capturing time points from the recorded video data two along a same time line on a monitor;
• and
• rearranging, in response to a second user operation, the thumbnail images of the received face cut-out images from the recorded video data one and from the recorded video data two based on a plurality of places, and displaying the rearranged thumbnail images along the same time line on the monitor,
• wherein each of the plurality of places is displayed side by side along the same time line on the monitor, and the rearranged thumbnail images are displayed in association with a corresponding one of the plurality of places.

A face detection system, comprising:

• a terminal device that is capable of acquiring at least one recorded video data file;
• and
• a server that is communicably connected to the terminal device,
• wherein the terminal device acquires the recorded video data file selected by a user operation and transmits the recorded video data file to the server,
• the server converts the received recorded video data file into recorded video data having a predetermined format, detects a face of one or more persons based on the converted recorded video data, generates one or more face cut-out images by cutting out a region of the detected face, associates information of an image capturing time point at which a person corresponding to the face cut-out image is captured with the face cut-out image, and transmits the associated information to the terminal device,
• the terminal device displays a thumbnail image of the received face cut-out image and information of the image capturing time point side by side in a time series on a monitor,
• the server extracts a plurality of face cut-out images determined to be of a same or similar person from the one or more face cut-out images, generates a similar face image group including each of the plurality of extracted face cut-out images, and transmits the similar face image group to the terminal device,
• the terminal device displays at least one thumbnail image of the one or more face cut-out images included in the received similar face image group and corresponding image capturing time point information on the monitor, the thumbnail image and the corresponding image capturing time point information being surrounded with a frame,
• the server determines whether or not each of the plurality of extracted face cut-out images is continuously captured for a predetermined time or more at a same place,
• in a case where the server determines that each of the plurality of extracted face cut-out images is continuously captured for the predetermined time or more at the same place, the server generates a staying face image group including each of a plurality of face cut-out images captured during the predetermined time in the similar face image group, and transmits the staying face image group to the terminal device, and
• the terminal device displays a face cut-out image captured first and a face cut-out image captured last during the predetermined time in the received staying face image group side by side on the monitor.

A face detection system, comprising:

• a terminal device that is capable of acquiring at least one recorded video data file;
• and
• a server that is communicably connected to the terminal device,
• wherein the terminal device acquires the recorded video data file selected by a user operation and transmits the recorded video data file to the server,
• the server converts the received recorded video data file into recorded video data having a predetermined format, detects a face of one or more persons based on the converted recorded video data, generates one or more face cut-out images by cutting out a region of the detected face, associates information of an image capturing time point at which a person corresponding to the face cut-out image is captured with the face cut-out image, and transmits the associated information to the terminal device,
• the terminal device displays a thumbnail image of the received face cut-out image and information of the image capturing time point side by side in a time series on a monitor,
• the server associates information of the image capturing time point with position information, at which each of the face cut-out images is captured, for each of the generated face cut-out images, and transmits the associated information to the terminal device,
• the terminal device displays a pair of the thumbnail image and the image capturing time point information side by side for each of the position information on the monitor,
• the terminal device calculates, based on information of a starting point position designated by the user operation, a distance between a position indicated by the position information of each of the face cut-out images and the starting point position, and
• the terminal device rearranges the thumbnail image based on the calculated distance and displays the thumbnail image on the monitor.