Abstract: A moving body speed derivation method that causes at least one computer to execute a process, the process includes deriving a reference point in a second moving body region that is an image of a second moving body, from one image capturing the second moving body among a plurality of time-series images captured by an imaging device installed in a first moving body; deriving a position of the second moving body based on a distance between the imaging device and a feature point in the second moving body corresponding to the reference point in the second moving body region; and deriving speed of the second moving body based on a change amount of the position of the second moving body corresponding to the second moving body region included in the plurality of time-series images.

Abstract: A camera height calculation method that causes a computer to execute a process, the process includes obtaining one or more images captured by an in-vehicle camera, extracting one or more feature points from the one or more images, identifying first feature points that exist over a road surface from the one or more feature points, and calculating a height of the in-vehicle camera from the road surface, based on positions of the identified first feature points.

Abstract: A moving body speed derivation method that causes at least one computer to execute a process, the process includes deriving a reference point in a second moving body region that is an image of a second moving body, from one image capturing the second moving body among a plurality of time-series images captured by an imaging device installed in a first moving body; deriving a position of the second moving body based on a distance between the imaging device and a feature point in the second moving body corresponding to the reference point in the second moving body region; and deriving speed of the second moving body based on a change amount of the position of the second moving body corresponding to the second moving body region included in the plurality of time-series images.

Abstract: A camera height calculation method that causes a computer to execute a process, the process includes obtaining one or more images captured by an in-vehicle camera, extracting one or more feature points from the one or more images, identifying first feature points that exist over a road surface from the one or more feature points, and calculating a height of the in-vehicle camera from the road surface, based on positions of the identified first feature points.

Abstract: A terminal device is provided that has a collation unit, a specification unit, and a display unit. The collation unit: references a storage unit that stores built-in display information that specifies a built-in display and a plurality of pieces of external display information that specify a plurality of connected external displays; and collates the built-in display information and the plurality of pieces of external display information. On the basis of the results of the collation, the specification unit specifies a display that has a specific positional relationship with a reading device for biological information. The display unit displays, on the specified display, a screen for touch locations that represent a read operation for the biological information.

Abstract: A terminal device is provided that has a position determination unit that, when authentication images that capture biological information are to be obtained, determines the position of the next touch location to be displayed in a guide display for touch locations that represent a read operation for the biological information. The determination is made from: the refresh rate of a display that displays the guide display; the number of authentication images to be acquired; and the distance at which the guide display is updated.

Abstract: A method performed by a computer for biometric authentication includes: obtaining, by a processor of the computer, a first image group including a plurality of images that are sequentially captured by a biometric sensor configured to capture at least a part of a region of a body of a user; obtaining, by the processor of the computer, a movement amount of the body and a distance between the body and the biometric sensor; and selecting, by the processor of the computer, a second image group from the first image group in accordance with the movement amount and the distance, the second image group including images to be used in authentication processing with respect to the body, wherein the size of a common region between images to be included in the second image group is adjusted according to the distance.

Abstract: A terminal device is provided that has a position determination unit that, when authentication images that capture biological information are to be obtained, determines the position of the next touch location to be displayed in a guide display for touch locations that represent a read operation for the biological information. The determination is made from: the refresh rate of a display that displays the guide display; the number of authentication images to be acquired; and the distance at which the guide display is updated.

Abstract: A terminal device is provided that has a calculation unit that: references a storage unit that stores information on the size of a display that is being used for display and information on a reference point for displaying a specific screen; and, from a preset display position for the specific screen, calculates a display position for the specific screen that conforms to the information on the size of the display, the information on the reference point, and information on the resolution of the display that is being used for display.

Abstract: A terminal device is provided that has a collation unit, a specification unit, and a display unit. The collation unit: references a storage unit that stores built-in display information that specifies a built-in display and a plurality of pieces of external display information that specify a plurality of connected external displays; and collates the built-in display information and the plurality of pieces of external display information. On the basis of the results of the collation, the specification unit specifies a display that has a specific positional relationship with a reading device for biological information. The display unit displays, on the specified display, a screen for touch locations that represent a read operation for the biological information.

Abstract: A biometric image processing apparatus including a memory and a processor coupled to the memory. The processor obtains a Y value, a U value and a V value in a YUV space from each pixel of an image, determines, for each pixel, whether or not the U value and the V value are in a range that is in accordance with the Y value, and extracts a pixel having been determined to be in the range.

Abstract: A method performed by a computer for biometric authentication includes: obtaining, by a processor of the computer, a first image group including a plurality of images that are sequentially captured by a biometric sensor configured to capture at least a part of a region of a body of a user; obtaining, by the processor of the computer, a movement amount of the body and a distance between the body and the biometric sensor; and selecting, by the processor of the computer, a second image group from the first image group in accordance with the movement amount and the distance, the second image group including images to be used in authentication processing with respect to the body, wherein the size of a common region between images to be included in the second image group is adjusted according to the distance.

Abstract: A biometric image processing apparatus including a memory and a processor coupled to the memory. The processor obtains a Y value, a U value and a V value in a YUV space from each pixel of an image, determines, for each pixel, whether or not the U value and the V value are in a range that is in accordance with the Y value, and extracts a pixel having been determined to be in the range.