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CPU/GPU-cooperative-processing-based quick base-in realization method for remote sensing data

A remote sensing data and collaborative processing technology, applied in the processing and management of remote sensing data, can solve the problem that the efficiency cannot meet the actual needs, and achieve the effect of speeding up the speed and improving the parallelism of the compression.

Inactive Publication Date: 2017-09-15
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional warehousing method uses CPU for serial operation processing, or multi-CPU parallel operation processing based on the original serial algorithm. In the environment of massive remote sensing data, the efficiency of this method cannot meet the actual needs

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  • CPU/GPU-cooperative-processing-based quick base-in realization method for remote sensing data
  • CPU/GPU-cooperative-processing-based quick base-in realization method for remote sensing data
  • CPU/GPU-cooperative-processing-based quick base-in realization method for remote sensing data

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Embodiment Construction

[0028] The method for fast storage of remote sensing data based on CPU / GPU cooperative processing proposed by the present invention will be described in conjunction with the accompanying drawings and embodiments.

[0029] In this system, one CPU core is used as the control core on the host side and the device side, and the other CPU cores are computing cores. The control core is mainly responsible for data transmission between the host side and the device side, data transmission between the CPU and GPU, The kernel function performs work such as parameter configuration and kernel function startup. The calculation core is mainly involved in the calculation-intensive part of data storage. The computing core on the device side is mainly used to process the image pyramid construction (mainly including memory allocation, copying data) and image preprocessing steps in the storage of remote sensing images. The calculation core on the host side is used to participate in image data com...

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Abstract

The invention discloses a CPU / GPU-cooperative-processing-based quick base-in realization method for remote sensing data. A CPU is invoked to carry out recording base-in processing on an image; a GPU is invoked to construct an image pyramid; and the GPU and CPU are invoked to compress the image pyramid data cooperatively. According to the invention, with a multi-machine system including a host terminal and a client terminal, image pyramid construction and data compression can be carried out in parallel, so that the speed of storing remote sensing image data into a base can be increased.

Description

technical field [0001] The invention relates to the technical field of processing and management of remote sensing data, and relates to a method for improving the storage efficiency of remote sensing data by using computer CPU / GPU cooperative computing, that is, a method for fast storage of remote sensing data based on CPU / GPU cooperative processing. Background technique [0002] Since the rise of aerospace remote sensing technology in the 1960s, remote sensing data acquisition technology has become more and more perfect, and a three-dimensional, multi-angle, all-round, all-weather earth observation network is being formed. Especially in recent years, with the commercial promotion of sub-meter high-resolution remote sensing satellites at home and abroad, the increase of manned / unmanned aerial remote sensing operations, the popularization of ground mobile remote sensing equipment, and the rapid development of technologies such as computers, networks, and communications , driv...

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Application Information

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IPC IPC(8): G06T9/00G06F17/30G06T1/20
CPCG06F16/51G06T1/20G06T9/007
Inventor 黄杰朱丰炜万健贾刚勇司华友
Owner HANGZHOU DIANZI UNIV