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Emperor penguin population quantity remote sensing estimation method

A technology of emperor penguins and populations, applied in the field of environmental remote sensing applications, achieves the effects of high precision, convenient acquisition, and simple principles

Active Publication Date: 2016-10-12
NANJING UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a remote sensing method for estimating the number of emperor penguin populations in view of the difficulty of obtaining the number of emperor penguin populations through manual field surveys, which can quickly and efficiently obtain the number of emperor penguin populations from remote sensing satellite images. The distribution of feces to determine the location of the population and complete the estimation of the Antarctic emperor penguin population

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  • Emperor penguin population quantity remote sensing estimation method

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Embodiment Construction

[0029] The present invention will be described in detail below according to the accompanying drawings, so that the purpose and effect of the present invention will become more obvious.

[0030] The image data used in the remote sensing estimation method of emperor penguin population in this example is the Landsat 7 ETM+ image, downloaded from the Landsat website (http: / / landsat.usgs.gov / ), and the longitude and latitude of the center point of the image is -69.6°N, 8.3° W, dated November 16, 2002.

[0031] Such as figure 1 It is the flow chart of this embodiment, and the specific implementation steps of the emperor penguin population number remote sensing estimation method include the following contents:

[0032] The first step is to download the Landsat 7 satellite image collection that meets the conditions of covering the entire coastal zone of the Antarctic continent within a suitable time. The time for downloading remote sensing images is generally in October, November, a...

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Abstract

The invention relates to an emperor penguin population quantity remote sensing estimation method. Landsat 7 satellite images in a corresponding time period are preprocessed, strip noise, geometric distortion and atmosphere influences are removed, afterwards, emperor penguin feces are pre-extracted, and areas obviously without population targets are eliminated. Through multiple tests, it is discovered that brightness differences between the emperor penguin feces on thermal infrared images and other natural objects are obvious, and therefore, emperor penguin population feces candidate areas are obtained by performing image segmentation on the thermal infrared images after pre-extraction. After true color synthesizing and wave band operation are performed on each emperor penguin population feces candidate area, it is determined that candidate areas satisfying all corresponding conditions are emperor penguin feces areas, i.e., emperor penguin population positions, and latitude and longitude coordinates of the positions are recorded. The same operation is completed on other remote sensing images of coastal zones of Antarctica in the corresponding time period, all the emperor penguin population positions are obtained, and finally, the emperor penguin population quantity and corresponding geographical coordinates of the whole Antarctica are obtained.

Description

technical field [0001] The invention relates to a remote sensing estimation method for emperor penguin population number, which belongs to the technical field of environmental remote sensing applications. Background technique [0002] Studying the number of emperor penguin populations plays an important role in revealing the ecological environment of Antarctica in recent years. Locating the location of the emperor penguin population is the first condition to obtain the population number. Obtaining the distribution of the emperor penguin population location is of great significance for studying the reproduction number and population migration trajectory of emperor penguins. [0003] The traditional method of obtaining emperor penguin populations by manual counting is limited by factors such as time, distance, and danger, and has considerable limitations. Only a very small number of emperor penguin population locations are monitored every year. Previous studies on the populat...

Claims

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Application Information

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IPC IPC(8): G06M11/00G06T7/00
CPCG06M11/00G06T2207/10036G06T2207/10032G06T2207/20128G06T2207/30242G06T2207/30181
Inventor 柯长青沈校熠钱昊邵珠德蔡宇
Owner NANJING UNIV
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