A method of registering geological data at a formation core tracking system includes, at the tracking system, registering a formation core provided within a field of view of an optical imaging system of the tracking system; tracking the orientation of the formation core relative to the tracking system and the distance of the formation core relative to the tracking system; obtaining data associated with a first section of the formation core which is located at a predetermined distance from the tracking system, displaying the data together with an image of the formation core such that an augmented reality image is provided on a display device of the tracking system, changing the distance between the tracking system and the core; and updating the displayed data by obtaining data associated with a second section of the formation core which is located at said predetermined distance from the tracking system.

A method of registering geological data at a formation core tracking system includes, at the tracking system, registering a formation core provided within a field of view of an optical imaging system of the tracking system; tracking the orientation of the formation core relative to the tracking system and the distance of the formation core relative to the tracking system; obtaining data associated with a first section of the formation core which is located at a predetermined distance from the tracking system, displaying the data together with an image of the formation core such that an augmented reality image is provided on a display device of the tracking system, changing the distance between the tracking system and the core; and updating the displayed data by obtaining data associated with a second section of the formation core which is located at said predetermined distance from the tracking system.

There is provided a method of motion tracking comprising arranging one or more active marker devices on an object, the active marker devices being configured to emit light and each having an associated temporally repeating pattern comprising a plurality of time frames, controlling the one or more active marker devices to emit light according to their respective temporally repeating patterns, wherein the temporally repeating patterns are such that the active marker device does not emit light during at least one time frame of the plurality of time frames, detecting light emitted by the one or more active marker devices using one or more cameras, and determining a spatial configuration of the object using the light detected by the one or more cameras.

There is provided a method of motion tracking comprising arranging one or more active marker devices on an object, the active marker devices being configured to emit light and each having an associated temporally repeating pattern comprising a plurality of time frames, controlling the one or more active marker devices to emit light according to their respective temporally repeating patterns, wherein the temporally repeating patterns are such that the active marker device does not emit light during at least one time frame of the plurality of time frames, detecting light emitted by the one or more active marker devices using one or more cameras, and determining a spatial configuration of the object using the light detected by the one or more cameras.

Embodiments of the present invention are a high dynamic range (HDR) synthesis method and apparatus, an image processing chip and an aerial camera. The method includes: acquiring a plurality of to-be-synthesized images having different exposure time; calculating a mean brightness of the to-be-synthesized images; determining an image brightness type of the to-be-synthesized images according to the mean brightness; calculating a brightness difference between adjacent pixel points in one to-be-synthesized image; calculating an inter-frame difference of different to-be-synthesized images at a same pixel point position according to the brightness difference; determining a motion state of the to-be-synthesized images at the pixel point position according to the inter-frame difference; and weighting and synthesizing the to-be-synthesized images into a corresponding HDR image according to the image brightness type and the motion state.

Embodiments of the present invention are a high dynamic range (HDR) synthesis method and apparatus, an image processing chip and an aerial camera. The method includes: acquiring a plurality of to-be-synthesized images having different exposure time; calculating a mean brightness of the to-be-synthesized images; determining an image brightness type of the to-be-synthesized images according to the mean brightness; calculating a brightness difference between adjacent pixel points in one to-be-synthesized image; calculating an inter-frame difference of different to-be-synthesized images at a same pixel point position according to the brightness difference; determining a motion state of the to-be-synthesized images at the pixel point position according to the inter-frame difference; and weighting and synthesizing the to-be-synthesized images into a corresponding HDR image according to the image brightness type and the motion state.

A system and method for generating, triggering and playinga sequence of audio files with cues for delivering a presentation for a presenter using a personal audio devicecoupled to a computing device. The system comprising the comprising a computer devicethat is coupled to a presentation data analysis server through a network. The method includes (i) generating a sequence of audio files with cues for delivering a presentation, (ii) triggering playing an audio file from the sequence of audio files, and (iii) playing the sequence of audio files one by one, on the computing device, using the personal audio devicecoupled to a computing deviceto enable the presenter to recall and speak the content based on the sequence of the audio files.

A system and method for generating, triggering and playinga sequence of audio files with cues for delivering a presentation for a presenter using a personal audio devicecoupled to a computing device. The system comprising the comprising a computer devicethat is coupled to a presentation data analysis server through a network. The method includes (i) generating a sequence of audio files with cues for delivering a presentation, (ii) triggering playing an audio file from the sequence of audio files, and (iii) playing the sequence of audio files one by one, on the computing device, using the personal audio devicecoupled to a computing deviceto enable the presenter to recall and speak the content based on the sequence of the audio files.

A control device includes a storage device which has stored a program, and a hardware processor, in which the hardware processor executes the program stored in the storage device, thereby acquiring a peripheral image of the mobile object, which is an image captured by a fisheye camera mounted on a mobile object, calculating an instruction regarding future traveling of the mobile object as a base trajectory in an orthogonal coordinate system, coordinate-converting the acquired base trajectory in the orthogonal coordinate system into a base trajectory in a fisheye camera coordinate system, calculating a risk of the base trajectory in the fisheye camera coordinate system on the basis of the peripheral image, and the base trajectory in the fisheye camera coordinate system, and calculating a traveling trajectory by modifying the base trajectory in the orthogonal coordinate system on the basis of the risk of the base trajectory in the fisheye camera coordinate system.

A control device includes a storage device which has stored a program, and a hardware processor, in which the hardware processor executes the program stored in the storage device, thereby acquiring a peripheral image of the mobile object, which is an image captured by a fisheye camera mounted on a mobile object, calculating an instruction regarding future traveling of the mobile object as a base trajectory in an orthogonal coordinate system, coordinate-converting the acquired base trajectory in the orthogonal coordinate system into a base trajectory in a fisheye camera coordinate system, calculating a risk of the base trajectory in the fisheye camera coordinate system on the basis of the peripheral image, and the base trajectory in the fisheye camera coordinate system, and calculating a traveling trajectory by modifying the base trajectory in the orthogonal coordinate system on the basis of the risk of the base trajectory in the fisheye camera coordinate system.