Methods have been proposed to produce multispectral images with enhanced spatial resolution using one or more images of the same scene of better spatial resolution. Assuming that the main concern of the user is the quality of the transformation of the multispectral content when increasing the spatial resolution, this paper defines the properties of such enhanced multispectral images. It then pr...

GaoFen-2 (GF-2) is a civilian optical satellite self-developed by China equipped with both multispectral and panchromatic sensors, and is the first satellite in China with a resolution below 1 m. Because the pan-sharpening methods on GF-2 imagery have not been a focus of previous works, we propose a novel pan-sharpening method based on guided image filtering and compare the performance to state...

A new adaptive multispectral image compression technique based on the regions identified is proposed. The algorithm is adaptive in the sense that according to the data type class of the region, appropriate encoding technique is chosen. The image is first segmented by means of Region splitting and merging procedure based on the statistical characteristic of the image. Then class adaptive hotelli...

Multispectral satellite imagery registration is a fundamental step for remote sensing applications such as global change detection, feature classification, and image fusion. Since image registration via the manual selection of control points is a repetitive and time-intensive task, a more efficient automatic coarse-to-fine algorithm for multispectral remote sensing image registration is propose...

Calibrating the elements of a multispectral imaging system. Miguel A. López-Álvarez, Javier Hernández-Andrés, Javier Romero, Joaquín Campos and Alicia Pons. Large Format Printing Division, Hewlett-Packard Spain, 08174 Sant Cugat del Vallès, Barcelona, SPAIN. [email protected] Color Imaging Laboratory, Departamento de Óptica, Universidad de Granada, 18071 Granada, SPAIN. [email protected], jromero@u...

On September 6th, 2008, HJ-1A/B, which is a Micro-satellite Constellation for Environment and Disaster Monitoring, was successfully launched in China. HJ-1A/B is composed by two small satellites named as Satellite-A (HJ-1A) and Satellite-B (HJ-1B). The payloads of HJ-1A include a multispectral imager and an interferometric imaging spectrometer; the payloads of HJ-1B include an infrared scanner ...

This paper deals with the evaluation of the performance of a set of classifiers on multispectral imagery with low dimensionality and low spatial and spectral resolutions. The original Landsat TM images and other 4 transformed sets are classified by 5 supervised and 2 unsupervised methods. The results for 7 land cover classes are compared and the performances of the methods for each set of input...

QuickBird satellite imagery, provided by DigitalGlobe Inc., has the highest resolution, among the satellite imaging systems that are commercially available. The QuickBird imaging system simultaneously collects 67-72 centimeter resolution stereo panchromatic and 2.44-2.88 meter resolution multispectral images. In this research, a QuickBird stereo pair of basic imagery product that was taken over...

The article presents the problem of methane detection using multispectral IR camera. The project of such camera and some theoretical calculations regarding the possibility of methane detection are presented. The calculation of optical path: “camera-cloud of methane–background” were also shown. Verification of theoretical result will be made by laboratory measurement. Some result of methane dete...

In this paper the problem of enhanced colour representation of MERIS data is discussed. Four methods are presented which tackle the problem of multispectral data colour visualisation. In order to assess these colour display strategies a data analysis using both statistical and information measures is presented. The performance of the proposed methods is evaluated objectively by means of mutual ...