Information Extraction(Remote Sensing and Image Analysis) Essay

Information Extraction(Remote Sensing and Image Analysis) - Essay Example rget, in which the spatial arrangement is preserved); techniques involve amassing knowledge pertinent to the sensed scene (target) by utilizing electromagnetic radiation, force fields, or acoustic energy sensed by recording cameras, radiometers and scanners, lasers, radio frequency receivers, radar systems, sonar, thermal devices, sound detectors, seismographs, magnetometers, gravimeters, scintilla meters, and other instruments(The Concept of Remote Sensing) Remote sensing is mostly used to study objects or a particular area on earth using the photographs taken by the remote satellites stationed above the earth. Microwave signals are using in such process because of these wave’s ability to penetrate clouds fog and rain. ‘The atmosphere has a big influence in satellite and high altitude aerial remote sensing.’ (Robert A. Schowengerdt p.48) Because of the scattering property of light by atmosphere the image obtained through remote sensing may not be clear. ‘Variations in platform altitude, velocity, and attitude variations in the elevation or altitude of a remote sensing platform lead to a scale change and field of view’. (John A. Richards, Xiuping Jia –p. 43.) Remote sensing image data normally require two or more scenes of the same geographical region acquire at different dates to be processed together for many applications. This is because of the complexity in analyzing the image because of the too many obscured pixels in it. Most of the remote sensing image data is too low in brightness and poor in contrast. In order to improve the quality of the image automatic contrast enhancement technology is used. Remote sensing images are usually two dimensional. The images obtained through remote sensing analyzed through the study of the number and location of spectral measurements or spectral bands. The spectral measurement in each band depend on the interactions between the incident radiation and the atomic and molecular structures of the material (pure

Good Writing Essay Example | Topics and Well Written Essays - 750 words

Good Writing - Essay Example I discovered that writing this semester raised my confidence in high school educational writing. My style of writing at the beginning of the semester was not the same as the one I used recently. I was able to master a collegiate style of writing on a high school project individually. In spite of this mastery, lasted three assists couples for this class truly challenge me to maintain my choice of words a high school level while maintaining an intriguing flow, content, and structure. In retrospect, the first essay that I composed this semester was a rough guide to the new style of academic writing that I was to integrate into my writing soon and master it. After reading the first three papers I composed this semester, I discovered that my focus was not enforcing other writers’ ideas. Instead, my focus was grasping new ways of articulating my ideas successfully. The introduction and ending of my first essays this semester were sections for me to demonstrate this new skill properly. More precisely, I posed questions for the reader to ponder on reading the rest of the essay or simply reflecting on its message. The only way to peek into the interest of the reader was to address him or her directly. This style of writing was a strong suit at the beginning of the semester. However, I cannot continue this writing style in the future since much of the work may not involve addressing readers directly or posing questions. The second strong suit that I discovered in my writing was taking into account the significance of using drafts during the onset of the writing process. I was not familiar with ways to exploit the revision practice before learning the skill of clarifying and polishing my ideas for writing. I became more accustomed to using drafts for revision purposes after writing six more research papers and before completing the final paper.