Sz Dji Technology Co., Ltd.

Mingming Gao

Kang Yang

Ang Liu

Di Wu

Xiang Liu

Xiaoping Hong

Guyue Zhou

Hui Sun

Qiguang Wang

Systems and methods for performing optical distance measurement are provided. In one aspect, a system for measuring a distance to an object comprises a light emitter configured to emit an outbound light pulse, and a light sensor configured to receive a returning light pulse reflected from the object and output an analog pulse signal representing the returning light pulse. The system also comprises a field-programmable gate array (FPGA) coupled to the light sensor. The FPGA is configured to convert the analog pulse signal to a plurality of digital signal values, and generate a plurality of time measurements corresponding to the plurality of digital signal values. The system also comprises a controller configured to calculate the distance to the object based on the plurality of digital signal values and the plurality of time measurements.

Systems and methods for optical distance measurement

A method for processing flight data includes acquiring, by detecting devices carried by one or more first aerial vehicles, environmental data associated to a position region; and sending, by the one or more first aerial vehicles, the environmental data to an external device. The environmental data is configured to generate a flight control instruction for controlling an operation of a second aerial vehicle while the second aerial vehicle is within the position region.

Aerial vehicle flight control method and device thereof

Described herein are systems, methods, storage media, and computer programs for tracking a plurality of feature points in a first image and a second image. In one embodiment, a first layer of a first image pyramid for the first image and a first layer of a second image pyramid for the second image are obtained. Based on expected pixel locations of the plurality of feature points in the first layer of the second image pyramid, a feature point is selected from the plurality of feature points. For the feature point, a first pixel in the first layer of the first image pyramid is determined, and a second pixel in the first layer of the second image pyramid is determined, where the first pixel substantially matches the second pixel.

Method and system for feature tracking using image pyramids

The present disclosure provides an optical flow tracking device. The device includes an image pyramid establishing circuit configured to establish a first image pyramid of a first image and a second image pyramid of a second image. The first image pyramid includes one or more image layers, and the second image pyramid includes one or more image layers. The device further includes an optical flow tracking circuit configured to perform an optical flow tracking processing on a kimage layer in the first image pyramid and a kimage layer in the second image pyramid to acquire an optical flow estimator of the second image in the kimage layer. K is an integer. The optical flow tracking circuit is configured to calculate an optical flow of the second image by using the optical flow estimator of the second image in the kimage layer.

Optical flow tracking device and method

A method for controlling an aerial vehicle includes obtaining flight indication data containing a position region associated with the flight indication data, determining whether a current position of the aerial vehicle is within the position region associated with the flight indication data, and, in response to the current position being within the position region, generating a flight control instruction according to the flight indication data, and controlling a flight of the aerial vehicle according to the flight control instruction.

A data processing method includes reading first to-be-processed data from a first storage unit into a second storage unit, computing a processing result according to the first to-be-processed data stored in the second storage unit, and, while computing the processing result, reading second to-be-processed data from the first storage unit. The first to-be-processed data is at a first layer of one or more image pyramids having a plurality of layers, and the second to-be-processed data is at a second layer of the one or more image pyramids.

Data processing method, apparatus, and system

A method of block matching includes selecting a block configuration from a plurality of block configurations and matching a first point in a first image with a corresponding second point in a second image using the selected block configuration.

Systems and methods for stereoscopic imaging

Representative embodiments of the present technology include a device for measuring distance to an object. The device comprises a light emitter configured to emit an outbound light pulse and a light sensor configured to receive a returning light pulse and output a pulse signal representing the returning light pulse. The device further comprises a field-programmable gate array (FPGA) coupled to the light sensor and including a time-to-digital converter (TDC) having a series of sequentially coupled delay units. Individual sequentially coupled delay units are associated with corresponding individual delay times. At least some of the sequentially coupled delay units have different individual delay times. The TDC is configured to measure timing information of the pulse signal based at least in part on the individual delay times of the sequentially coupled delay units. The device further includes a controller configured to calculate the distance to the object based on the timing information.

Delay time calibration of optical distance measurement devices, and associated systems and methods

A method and device for aerial vehicle-based image projection, and an aerial vehicle are provided. The method comprises adjusting a position of the aerial vehicle to a projection-permitted position if an image projection event for the aerial vehicle is detected, triggering a projection module of the aerial vehicle to project an image. Adjusting the position of the aerial vehicle comprises adjusting the position of the aerial vehicle based on an obstacle image captured in a projecting direction of the projection module.

Method of aerial vehicle-based image projection, device and aerial vehicle

The present invention provides a flight control method for an aerial vehicle and a related device. The method may comprises receiving flight indication data under a current environment, the flight indication data including flight indication data detected by another aerial vehicle or provided by an external storage device; generating a flight control instruction according to the received flight indication data to control a flight of the aerial vehicle. An embodiment of the present invention may store and manage the flight indication data acquired by various aerial vehicles, so as to provide the support of related flight indication data to some requesting aerial vehicles, to enable the requesting aerial vehicles to perform operations such as obstacle avoidance, safe path planning and finding landing places based on the flight indication data.

A system of virtual sightseeing using unmanned aerial vehicles (UAV) and methods of making and using same. The virtual sightseeing system can include a plurality of UAVs arranged over a geographical area of interest in one or more ground configurations. In response to a sightseeing request, one or more UAVs are activated and deployed to a sightseeing region of interest. The UAVs travel to the region of interest and, upon arriving, acquire data for presentation in real-time. The data can include both visual and non-visual data from the region of interest and can be presented in integrated fashion in a virtual reality terminal. The virtual sightseeing is supervised by an operational subsystem that is responsible for efficient allocation of UAVs in response to multiple sightseeing requests. Even if physically separate, the subsystems of the virtual sightseeing system can communicate via a data communication subsystem, such as a wireless network.

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Shenzhen, China

Mingming Gao