Please select the most similar patent number from A, B, C and D. Which number is?
Disclosed is an intelligent guiding device and a visualised method for guiding the blind, the intelligent guiding device comprising a detection mechanism (1), a microprocessor controller (3), an image toucher (5) and indicating devices (71, 72, 73, 74); the detection system (1) comprising camera devices (11, 12, 13) and ultrasonic detectors (14, 15, 16, 17); the microprocessor controller (3) being connected to the camera devices (11, 12, 13), the ultrasonic detectors (14, 15, 16, 17), the image toucher (5) and the indicating devices (71, 72, 73, 74); the camera devices (11, 12, 13) being used for collecting monochrome images of the scene in front; the microprocessor controller (3) performing an extraction from the monochrome images so as to obtain signals of object contours, and then converting the same into serial signals, which are then outputted to the image toucher (5); the image toucher (5) converting the serial signals into mechnical tactile sense signals and sending out stimulation of touching pins; the ultrasonic detectors (14, 15, 16, 17) being used for measuring information on the location of the objects around; the microprocessor controller (3) processing the information on the location of the objects so as to obtain the distance to the objects and a direction which safely avoids them, and sending the same to the indicating devices (71, 72, 73, 74); and the indicating devices (71, 72, 73, 74) being used for indicating the distance to the objects and the direction which safely avoids them. The visualised method for guiding the blind comprises the following steps: 1. taking a monochrome image, and making a contour extraction from the monochrome image so as to obtain signals of the object contours; 2. converting the signals of the object contours into serial signals and sending the same to the image toucher (5), where the image toucher (5) converts the serial signals to mechanical tactile signals and sends out stimulation of touching pins, allowing the blind to feel the shape of the objects by touching.
A: The embodiment of the present invention relates to the field of acquiring a contour of an object. Disclosed are a method of acquiring a contour of an object, an image processing method and a computer storage medium. The method comprises: acquiring images of an object at different lighting angles to obtain a plurality of images of the object; using a positional relationship among contours and shadows of the object in the plurality of images of the object to calculate depth information of the contour of the object. The embodiment of the present invention can acquire a contour of an object with high precision quickly.
B: A method and device for object recognition, a data processing device, and a computing device, related to the technical field of computer visuals. The method comprises: receiving an image (302); locating key points for an object in the image, acquiring two or more key points of the object, and acquiring position information of each key point of the two or more key points, the position information comprising position coordinates and a visibility state (304); extracting global features of the object in the image, and extracting local features of the object from where the key points are in the image on the basis of the position information (306); combining the global features of the object and the local features extracted from where the key points are for object recognition so as to acquire the recognition result for the object (308). Recognition effects for the object are increased.
C: An ultrasonic detection imaging method, comprising the following steps: step 1, driving, by a stepping motor, a collapsible multi-level rotary ultrasonic probe, transmitting, by an ultrasonic probe of the collapsible multi-level rotary ultrasonic probe, an ultrasonic signal, and collecting an ultrasonic echo detection signal and transmitting same to a detection host; step 2, conducting, by a signal processing module, positioning calculation on position information about the ultrasonic probe, and transmitting the position information to the detection host; step 3, imaging, by the detection host, the picked ultrasonic echo detection signal, and according to the position information, conducting image splicing, so as to obtain an image of an object under detection; and step 4, displaying, by an image display, the image. A device for achieving the ultrasonic detection imaging method, comprising a suction cup, an image display, a detection host, a power source module, a signal processing module and a collapsible multi-level rotary ultrasonic probe. The device has the advantages of being simple to install, easy to operate and convenient to control, and has high accuracy, etc.
D: A wearable smart guide system (1000), comprising headphones (1300) and a wearable smart guide apparatus (1100), the wearable smart guide apparatus (1100) comprising a first switch (1113), a first power source module (1101), a first controller (1102), an image acquisition module (1103), an image recognition module (1104), a voice recognition module (1106), a mobile communication module (1108), a first wireless communication module (1109), a GPS positioning module (1110) and a distance detection module (1111). The wearable smart guide system (1000) also comprises a remote controller (1200), the remote controller (1200) comprising a second switch (1205), a second power source module (1201), a second controller (1202), a second wireless communication module (1203) and a first button (1204), and a wearable carrier (1112) is arranged on the wearable smart guide apparatus (1100). Via the split structure of the wearable smart guide apparatus (1100), the remote controller (1200) and the headphones (1300), the wearable smart guide system (1000) facilitates carrying and controlling by a blind person, so as to provide the blind person with a safe and easy way of travelling.
Answer: D