1.1 CONCEPT OF IMAGE BLUR:
Whenever we use a camera we come across the concept of image blurring.It is a very commonly faced problem.A person’s movement when the shutter is open affects the stable camera position.This results in overlapping of the entire image.Image blur caused by camera shake is a common degradation and key issue in computational photography.
This image blur is distortions of rapidly moving objects in a still image or in a sequence of images such as in the field of motion and animation. In image blurring the image does not represent a single instant of time. Most of the times, the exposure time is so brief that the image captured by the camera represents an image at a particular instant of time. But this is not always the case. Fast moving object or a longer exposure time may result in blurring.
The concept of image blur is frequently employed in sports photography to give a feel of the speed. In order to achieve this effect it is necessary to use a slow shutter speed and pan the lens of the camera in time with the motion of the object.
1.2 CAUSES OF IMAGE BLURRING:
This problem can arise by multiple issues, but these are usually easy to identifyand learn to correct. It just takes a bit of digital photography knowledge and a fewchanges before snapping the shutter, and you can achieve crisp, clear photos.
1.2.1 SLOW SHUTTER SPEED:
In low light situations, a camera’s automatic settings may sometimes lower the shutter speed to compensate for the lack of light. Movement of the subject or the photographer can then cause image blur because the shutter speed is too slow or essentially the shutter was open too long.
1.2.2 HAND SHAKE:
In some situations, slower shutter speed is required to capture a particular style or...
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...sult with the help of a camera.Here the correspondence between the input and output images is determined by the matching of corners.Since it is observed that coordinate correspondence varies smoothly, we can largely reduce the computation time by interpolating corresponding map from several corners points.So at first the original calibration pattern is there then the projector camera’s captured version with the motion platform is fixed at the origin position and then the mapping vectors at several landmarks for interpolation and the calibrated pattern is presented.
5.4 DARK CORNER CORRECTION :
As we already know,the projector and camera suffer from dark corner effects and this effect is more important in such hybrid systems.In order to remove this, a constant intensity grey image (intensity set to 128 in order to prevent saturation) is projected to the screen and
“There is in fact no such thing as an instantaneous photograph. All photographs are time exposures, of shorter or longer duration, and each describes a discrete parcel of time.” -John Szarkowski
manipulate the impression conveyed on the screen. You do this by carefully controlling the strength
the visual medium. In a way that is unique to the cinema, the special effects disrupt the
The scene is shot with a wide-angle lens showing both the character and some headroom above for the projection light. A projection is behind Joe and Norma which lights up both of their faces while everything else is lit slightly. Nevertheless, the slightly lit room stills reveal pictures of Norma surrounding them while they are watching old Norma film. When Norma stood up to speak her face was lit in high contrast with the projection light and everything else is surrounded by darkness. Because the projection is on the left side of the screen, it moves audience’s eye from Joe and then to Norma. As well, the projection light gave the screen a static
Autofocus: This is a focus system that will focus on an object in the frame of your lens automatically before you snap a picture. This allows you to focus on other facets of taking a
If motion capture is able to help produce the most accurate and powerful shot, after analyzing and collecting data from multiple lacrosse athletes, it could potentially improve the game. Some athletes could attend a sports program to produce the “perfect” shot. They would be taught how to exactly position their arm muscles, torso and joints to follow through with the swing of the stick creating the best motion of the ball. This study could potentially be a huge advancement in the game of lacrosse, furthering the popularity of the game. It could help advance the overall background of neuromechanics to the game. Furthering the research on motor control and biomechanics in the game of lacrosse.
...omated detection of lines and points in the images and the use of smart markers in reference video recordings.
Photography is the process of making pictures by the action of light. Light reflected from a subject forms an image of that subject on a light-sensitive device, called a camera, onto a paper-like material, called a picture. The image formed by light is then digitally or chemically processed into a photograph. The word photograph is combined from two different greek words. Photo comes from the greek word light, and graph comes from the greek word to write or draw. Altogether photography means to write or draw with light.
Zhang, L., & Tam, W. J. (2005). Stereoscopic image generation based on depth images for 3D TV.
from the same problems of a computer based system, such as illumination, occlusion and pose variations,
By doing the abolition of the blemishes and fine lines, it is possible to make a picture-perfect image
also increases the problem so that pictures may fall into the wrong hands. Creativity photography
Oftentimes, a person can look at an image and draw a conclusion about it, only to find out later that he or she was incorrect. This phenomenon is due to what is called an optical illusion, in which an image is perceived incorrectly to be something else. This leads to the questions, why do optical illusions occur, and what can be done about them?
The camera obscura affected the development of photography by showing the first temporary image through light. A camera obscura is “An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the outlines may be traced (Camera Obscura).” This device was mostly used for painters so they could trace the areas that the outline showed and understand proportion of a certain painting. Light is captured