Abstract—Here we study about imaging and different imaging process .We use imaging in various field medical, remote sensing ,CMOS camera , thermal imaging , infrared imaging .In medical use A-mode imaging, in beta-mode imaging display of Echoes on a grayscale anatomical image. Here different types of imaging in science these are research, astronomical imaging biomedical imaging, or create new optical device or imaging sensor. Keywords—Echoes: audio signal reflection, optical : Related to light, anatomical: Related to human body. I. INTRODUCTION Imaging has become ubiquitous in our lives from the cameras in our cell phones and drones to post on , imaging is present everywhere. Its program different from the traditional electrical engineering, optical or computer science programs these typically emphasize just the hardware to create images, or the software to analyse them. Here different types of imaging in science these are research, astronomical imaging biomedical imaging, or create new optical device or imaging sensor 2.Detail Based on imaging process different-different imaging device present and it works on different imaging process. 1. THERMAL IMAGING:-Thermal imaging means that work based on thermal (temperature based images) at present time we have different-different devices their working based on thermal imaging. Example -Thermal imaging camera. In thermal imaging camera detect the image with the help of temperature if the temperature is more, then image has light colour and if temperature is less, then image has dark colour .This type of camera use for different work like detect the fire and it also give the exact temperature of any object. 2. IR IMAGING TECHNIQUE:- 1. Uncooled infrared focal plane array (IRFPA) technique – Based on this technology many devices forms the uncooled IRFPA is a device that integrate the array into thermal infrared detector pixels. 2. Infrared astronomy imaging:-It related to astronomy here we study about different-different astronomical object. Using infrared radiation. The range of infrared radiation 0.75 to 300 u meter here we use infrared telescope. Prepare Your Paper Before Styling 3.MULTI SPECTRAL IMAGING:-multispectral concept explain with the example of a painting made up of different-different layers. ? Varnish paint ? Under drawing ground ? support Infrared light, visible and ultraviolet rays falls on the painting and reaches different-different layer. When visible light falls on the painting ,then it go through the varnish and reach the paint layer after this infrared falls ,then it go through the paint and reach the under drawing layer and finally ultraviolet reaches the varnish layer and provide information about painting surface. In multispectral imaging using reflected light. Light source and camera placed in front of painting seven images are collected an ordinary photo graph followed by five technical images collect RAK (raking light), UVF (ultraviolet fluorescence), IRCCD (digital infrared false colour), IRF (infrared fluorescence), IRFC (infrared false colour).Multi spectral imaging using transmitted light painting put between the camera and light source, then two more images we get VISTR (visible transmitted) and IRTR (infrared transmitted). Here one more image use for documentation. ? Here we use CMOS sensing device (camera)- CONCLUSION- Scientific Imaging related to different-different imaging process these processes are some advantages or disadvantages include. Here talking about digital imaging. In digital imaging use digital system these systems are very costly and use number of detectors. In future imaging play unique and different role various field like-medical, remote sensing, education. In medical field use A-mode imaging and beta-mode imaging , A-mode imaging deals with impedance f different layers, in beta-mode imaging display of echoes on a grayscale anatomical image.