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A real-time parallel processing system and processing method for satellite remote sensing images

A technology of satellite remote sensing and parallel processing, applied in the field of remote sensing, can solve the problems that the system cannot achieve real-time processing and does not strictly define the concept of "real-time"

Active Publication Date: 2017-04-12
中国人民解放军第二炮兵指挥学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing literature, most systems cannot achieve real-time processing, and even if there is real-time processing, the concept of "real-time" is not strictly defined
It can be seen that the main defect of the current technology in this field is that there is no visible method reported, which can achieve online real-time reception, interpretation, decoding, image preprocessing, and interpretation of remote sensing images without delay within the satellite overhead time.

Method used

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  • A real-time parallel processing system and processing method for satellite remote sensing images
  • A real-time parallel processing system and processing method for satellite remote sensing images
  • A real-time parallel processing system and processing method for satellite remote sensing images

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Embodiment 1

[0044] Embodiment 1: Referring to the accompanying drawings, a real-time parallel processing system for satellite remote sensing images includes a storage device 4 and a processor, and the processor includes a monitoring machine 1, a receiver 2, a blocker 3, an interpreter 5 and a confirmation Machine 6; each processor supports multi-CPU, multi-thread, and graphics card multi-core computing; each processor performs shared read-write access to the image data on the storage device through the optical fiber network; each processor communicates and exchanges data through Ethernet;

[0045] The monitoring machine 1 is used to control and manage the operation of the entire system, so that all real-time image processing tasks are synchronously scheduled among different processors, and the working status, work progress, and workload of all processors in the system are tracked in real time, Scheduling and display: a local database runs on the monitoring machine 1 to record and back up t...

Embodiment 2

[0055] Embodiment 2: referring to each accompanying drawing, a kind of satellite remote sensing image real-time parallel processing method is characterized in that using a kind of satellite remote sensing image real-time parallel processing system as described in Implementation 1, and comprises the following steps, and each step is by described The monitoring machine 1 controls and manages the operation of the entire system, so that all real-time image processing tasks are scheduled synchronously among different processors, and the working status, work progress, and workload of all processors in the system are tracked, scheduled and displayed in real time :

[0056] a) The monitoring machine 1 initiates a startup command to start the entire system, including the receiver 2 starting to scan the buffer on the storage device 4, the blocker 3 waiting for the block task, and the interpreter 5 waiting Assign interpretation tasks; the confirmation machine 6 waits for tasks;

[0057]...

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Abstract

The invention belongs to the technical field of remote sensing, particularly relates to a satellite remote sensing image processing technology. The technical scheme is a real-time parallel processing system for satellite remote sensing images. The real-time parallel processing system comprises storage equipment (4) as well as processors of a monitor (1), a receiver (2), a box divider (3), storage equipment (4), an interpreter (5) and a confirmer (6), wherein each processor supports multi-CPU, multi-thread and display card multi-core calculation; each processor realizes communication and data exchange through the Ethernet, and carries out data sharing by virtue of the storage equipment (4) through an optical fibre network. The monitor (1) is used for controlling management for the running of the whole system; data reception imitates the form of a streaming media, and virtual logical box division is carried out on the data by the receiver (2); the box divider (3) is used for processing a block division task in parallel, the interpreter (5) is used for finishing interpretation, and the confirmer (6) is used for providing a visual image result. The system is capable of finishing data reception, pre-processing and interpretation in real time in a concomitant satellite top-crossing time period.

Description

technical field [0001] The invention belongs to the technical field of remote sensing, in particular to a satellite remote sensing image processing technology. Background technique [0002] With the development of satellite technology, especially after the high-resolution earth observation system has been listed as a major national science and technology project, all walks of life urgently need an effective, high-speed, and timely method for processing satellite remote sensing image data. However, satellite remote sensing image data still has the characteristics of large data volume and slow processing speed under the current technical level. In the prior art, cluster computers are widely used for distributed and parallel processing, and the processing speed is improved by parallelizing data and tasks for satellite remote sensing images. However, in the existing literature, most systems cannot achieve real-time processing, and even if there is real-time processing, the conc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
Inventor 姚行中彭绍武鲁统伟周晓华闵锋徐俊杨晓非李梦琳李寒松郭海艮
Owner 中国人民解放军第二炮兵指挥学院
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