Image shooting direction identification method, server and monitoring method, system and video shooting equipment

A shooting direction and server technology, applied in the field of information processing, can solve the problems of poor robustness, large feature dimension, and increased workload of panoramic images, and achieve the effects of improving recognition processing efficiency, improving matching degree, and ensuring accuracy

Active Publication Date: 2018-12-07
ALIBABA GRP HLDG LTD
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned prior art, the panorama image obtained by the panoramic camera or the way of collecting a circle of images around it is poor in robustness and has a large feature dimension, and the success rate of accurately matching the corresponding area in t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image shooting direction identification method, server and monitoring method, system and video shooting equipment
  • Image shooting direction identification method, server and monitoring method, system and video shooting equipment
  • Image shooting direction identification method, server and monitoring method, system and video shooting equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0088] Furthermore, the homography transformation matrix obtained by calculating the point features of the two images can reflect the coordinate transformation relationship of the two images, that is, the homography transformation matrix can be regarded as the point mapping of an image on a two-dimensional plane to another plane Mapping relationship, for a fixed-point camera, if its internal parameters (the internal parameters of the camera include focal length and other parameters related to the internal structure of the camera) are known, the relative reference center of the target image can be directly derived through the homography transformation matrix An offset parameter of the image (ie, the matching reference image). In an implementation manner, the offset parameter may be a horizontal rotation offset Δp, a vertical elevation angle offset Δt, and a scaling offset Δz. Then, after the direction information of the matched reference image is known, that is, after obtaining...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An embodiment of the invention discloses an image shooting direction identification method, an image shooting direction identification server, a monitoring method, a monitoring system and video shooting equipment. The image shooting direction identification method comprises the steps of: extracting a depth feature of a target image shot by a camera; determining a reference image that matches the target image based on a degree of matching between the depth feature of the target image and depth features of a plurality of reference images; acquiring a coordinate position relationship between thematched reference image and the target image; and calculating to obtain an image shooting direction of the camera when the target image is shot by utilizing the coordinate position relationship and direction information of the matched reference image. By utilizing the image shooting direction identification method, the image shooting direction identification server, the monitoring method, the monitoring system and the video shooting equipment, the image shooting direction of the camera can be quickly and precisely identified, and the identification processing efficiency of the image shooting direction is greatly improved.

Description

technical field [0001] The present application relates to the technical field of information processing, and in particular to a shooting direction identification method, a server, a monitoring method, a system, and an imaging device. Background technique [0002] Video surveillance equipment is currently being widely used in public place supervision, traffic management, place safety management, outdoor and indoor video recording and other functions. Currently, video surveillance equipment mainly adopts camera equipment, for example, conventional closed-circuit cameras, dome cameras, mobile camera equipment, and the like. Due to the variability of the shooting direction of the camera during the shooting process, as well as the influence of time, weather, etc., there will also be large differences in the video images or picture images collected at the same location and at the same height. Therefore, when video or pictures captured by a camera are used for monitoring and proce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N5/232
CPCG06T7/74G06T7/337H04N23/64H04N23/951H04N23/698H04N23/6815G06T7/97G06F18/22
Inventor 高强华
Owner ALIBABA GRP HLDG LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products