Systems, methods, and apparatuses described herein may provide image processing, including displaying, by a mobile device, an image of an object located perpendicular to a reference object, calculating, based on at least one depth measurement determined using a depth sensor in the mobile device, the predicted height of the mobile device when the image was captured, calculating scale data for the image based on the predicted height, determining a reference line identifying the location of the object and the reference object in the image, segmenting pixels in the object in the image from pixels in the image outside the object, measuring the object based on the pixels in the object and the scale data, and generating model data comprising the object, the scale data, and the measurements.

Systems, methods, and apparatuses described herein may provide image processing, including displaying, by a mobile device, an image of an object located perpendicular to a reference object, calculating, based on at least one depth measurement determined using a depth sensor in the mobile device, the predicted height of the mobile device when the image was captured, calculating scale data for the image based on the predicted height, determining a reference line identifying the location of the object and the reference object in the image, segmenting pixels in the object in the image from pixels in the image outside the object, measuring the object based on the pixels in the object and the scale data, and generating model data comprising the object, the scale data, and the measurements.

A device for measuring the height of an individual subject, which includes an elongated body member having a front surface which visually displays units of measure, i.e., inches, each measuring unit being divided into fractions of the measuring unit which are depicted on the front surface. The body member is attachable to a vertical wall surface above a generally horizontal floor surface by any known means, such as by attaching a pair of steel bars to the wall surface, and attaching, or preferably embedding, a plurality of rare earth magnets to the body member, i.e., about two magnets for each steel bar. A height indicating guide member is releasably and slidably attached to the body member by a metal strip being embedded and hidden from view into a side of the body member, and several rare earth magnets, preferably four, being attached, or preferably embedded into a side surface of the guide member. The slidable guide member has an outwardly extending height indicating member attached thereto. The outwardly extending height indicating member has a height measuring bottom surface which is generally horizontal and parallel to the floor surface, such that the distance between the horizontal surface and the floor surface is visually indicated on the body member. The body member is attached to a wall surface at a vertical position which depicts the distance between the measurement units and the floor. When the individual subject is positioned adjacent the body member and the guide member is slid to a position where the lower horizontal height measuring surface contacts the uppermost surface of the head of the individual subject, the height of the individual subject will be indicated on the body member. A height information chart board is conveniently slidably inserted into a slot of the body member, the chart board having a writing surface for recording the height of an individual subject, I.e., a child as he or she is growing up. The chart board is releasably attached to the body member by a plurality of magnets, preferably rare earth magnets. The body member is preferably comprised of two sections attached by hinges so that it can be folded for storage or transport.

A device for measuring the height of an individual subject, which includes an elongated body member having a front surface which visually displays units of measure, i.e., inches, each measuring unit being divided into fractions of the measuring unit which are depicted on the front surface. The body member is attachable to a vertical wall surface above a generally horizontal floor surface by any known means, such as by attaching a pair of steel bars to the wall surface, and attaching, or preferably embedding, a plurality of rare earth magnets to the body member, i.e., about two magnets for each steel bar. A height indicating guide member is releasably and slidably attached to the body member by a metal strip being embedded and hidden from view into a side of the body member, and several rare earth magnets, preferably four, being attached, or preferably embedded into a side surface of the guide member. The slidable guide member has an outwardly extending height indicating member attached thereto. The outwardly extending height indicating member has a height measuring bottom surface which is generally horizontal and parallel to the floor surface, such that the distance between the horizontal surface and the floor surface is visually indicated on the body member. The body member is attached to a wall surface at a vertical position which depicts the distance between the measurement units and the floor. When the individual subject is positioned adjacent the body member and the guide member is slid to a position where the lower horizontal height measuring surface contacts the uppermost surface of the head of the individual subject, the height of the individual subject will be indicated on the body member. A height information chart board is conveniently slidably inserted into a slot of the body member, the chart board having a writing surface for recording the height of an individual subject, I.e., a child as he or she is growing up. The chart board is releasably attached to the body member by a plurality of magnets, preferably rare earth magnets. The body member is preferably comprised of two sections attached by hinges so that it can be folded for storage or transport.

A substrate-floatation-type laser processing apparatus and a method for measuring a floating height, capable of improving performance of laser processing are provided. A substrate-floatation-type laser processing apparatus according to an embodiment includes a stage configured to float and convey a substrate, and a floating-height measurement apparatus configured to measure a floating height H of the substrate. Note that a distance between the floating-height measurement apparatus and the substrate can be automatically adjusted according to the measured floating height H. The floating height H of the substrate is measured by applying laser light to the substrate and the stage. The distance between the floating-height measurement apparatus and the substrate is adjusted by using a feedback mechanism in which the measured floating height of the substrate is used as an input.

One or more computing devices, systems, and/or methods for calibrating barometric sensors and/or determining altitudes of devices are provided. In an example, one or more barometric pressure measures are determined using a barometric sensor of a device. One or more locations of the device are determined based upon one or more global navigation satellite system (GNSS) signals and one or more corrective signals associated with the one or more GNSS signals. One or more reference values are determined based upon the one or more locations. A barometric offset is determined based upon the one or more barometric pressure measures and the one or more reference values. A first barometric measurement is performed using the barometric sensor to determine a first barometric pressure measure. An adjusted barometric pressure measure and/or an altitude of the device are determined based upon the first barometric pressure measure and the barometric offset.

One or more computing devices, systems, and/or methods for calibrating barometric sensors and/or determining altitudes of devices are provided. In an example, one or more barometric pressure measures are determined using a barometric sensor of a device. One or more locations of the device are determined based upon one or more global navigation satellite system (GNSS) signals and one or more corrective signals associated with the one or more GNSS signals. One or more reference values are determined based upon the one or more locations. A barometric offset is determined based upon the one or more barometric pressure measures and the one or more reference values. A first barometric measurement is performed using the barometric sensor to determine a first barometric pressure measure. An adjusted barometric pressure measure and/or an altitude of the device are determined based upon the first barometric pressure measure and the barometric offset.

A method and a system for establishing a route of an unmanned aerial vehicle are provided. The method includes identifying an object from surface scanning data and shaping a space, which facilitates autonomous flight, as a layer, collecting surface image data for a flight path from the shaped layer, and analyzing a change in image resolution according to a distance from the object through the collected surface image data and extracting an altitude value on a flight route.

Techniques are provided for vision-based altitude estimation using one or more platform mounted cameras. An embodiment includes generating projected ground imagery of imagery provided by cameras of the platform, the projection based on a hypothesized altitude. The method also includes obtaining reference ground imagery based on the location of the platform, the location based on platform navigation data. The method further includes registering the projected ground imagery to the reference ground imagery and generating a match score associated with the registration. The method further includes selecting the hypothesized altitude as the estimated altitude based on the match score (e.g., if the match score exceeds a threshold value or is maximized over a set of hypothesized altitudes. The method may further include otherwise adjusting the hypothesized altitude and repeating the altitude estimation process based on the adjusted hypothesized altitude to search for an improved estimated altitude based on the match score.

A method for controlling movement of an unmanned aerial vehicle (UAV) includes controlling one or more propulsion units of the UVA to cause the UAV to operate according to a first set of altitude restrictions; assessing, with aid of the one or more processors and based on one or more criteria, whether to control the UAV to operate according to a second set of altitude restrictions; and controlling the one or more propulsion units to cause the UAV to operate according to the second set of altitude restrictions in response to the one or more criteria being fulfilled according to an assessing result. The first set of altitude restrictions constrain an altitude of the UAV relative to a first reference altitude. The second set of altitude restrictions constrain the altitude of the UAV relative to a second reference altitude.