DPI stands for

DIGITAL IMAGE FUNDAMENTALS MCQ

• Sensor strip mounted in a ring configuration is used in
• 1024 x 1024 image has resolution of
• The lens is made up of concentric layers of
• Radio wave band encompasses
• L = 23 would have
• The cornea is the tough transparent tissues that covers eye\'s
• Digital images are displayed as a discrete set if
• In MxN, M is no of
• Each element of the matrix is called
• Imaging system produces
• Digitizing the coordinate values is called
• The smallest element of an image is called
• Types of imaging sensors are
• E = hv in this expression, h is called
• The fovea itself is a circular indentation in the retina of about
• Type of zooms are
• DPI stands for
• Hard x-rays are used in
• No of bits to store image is denoted by the formula
• MRI in imaging stands for
• Digitizing the amplitude values is called
• Process of using known to estimate unknown is called
• The choroid lies directly below the
• Value of speed of light constant c
• Black and white images have only
• Gamma rays have largest
• Part of the eye , that is not the membrane of the eye is
• In MxN, N is no of
• One that is not the measuring substance of the image is
• Discernible change in intensity level of image is
• Black and white pixels of image are represented in matrix as
• Image sensor produces
• Mechanical digitizers are referred to
• Cone vision is called
• Digitizing the image requires
• A matrix is denoted by
• Changing the overall sensitivity of the image is called
• Image linear interpolation is given by the formula
• One that is not the type of image sensor is
• X-rays pass through the patient\'s body for generating diagnostic
• Value of plank\'s constant h is
• Digital image processing is build on mathematical and
• The lens has a fixed
• Functions that combines to produce ƒ(x,y)
• The innermost membrane of the eye is
• Radio waves have largest
• Matrix is made up of
• Discernible small details of image is
• To convert a continuous sensed data into Digital form, which of the following is required?
• To convert a continuous image f(x, y) to digital form, we have to sample the function in __________
• For a continuous image f(x, y), how could be Sampling defined?
• For a continuous image f(x, y), Quantization is defined as
• Validate the statement:
• How is sampling been done when an image is generated by a single sensing element combined with mechanical motion?
• How does sampling gets accomplished with a sensing strip being used for image acquisition?
• How is sampling accomplished when a sensing array is used for image acquisition?
• The quality of a digital image is well determined by ___________
• Assume that an image f(x, y) is sampled so that the result has M rows and N columns. If the values of the coordinates at the origin are (x, y) = (0, 0), then the notation (0, 1) is used to signify :
• The resulting image of sampling and quantization is considered a matrix of real numbers. By what name(s) the element of this matrix array is called __________
• Let Z be the set of real integers and R the set of real numbers. The sampling process may be viewed as partitioning the x-y plane into a grid, with the central coordinates of each grid being from the Cartesian product Z2, that is a set of all ordered pairs (zi, zj), with zi and zj being integers fro
• Let Z be the set of real integers and R the set of real numbers
• The digitization process i.e. the digital image has M rows and N columns, requires decisions about values for M, N, and for the number, L, of gray levels allowed for each pixel. The value M and N have to be:
• The digitization process i.e. the digital image has M rows and N columns, requires decisions about values for M, N, and for the number, L, of max gray levels. There are no requirements on M and N, other than that M and N have to be positive integer. However, the number of gray levels typically is
• The digitization process i.e
• After digitization process a digital image with M rows and N columns have to be positive and for the number, L, max gray levels i.e. an integer power of 2 for each pixel. Then, the number b, of bits required to store a digitized image is:
• An image whose gray-levels span a significant portion of gray scale have __________ dynamic range while an image with dull, washed out gray look have __________ dynamic range
• Validate the statement “When in an Image an appreciable number of pixels exhibit high dynamic range, the image will have high contrast.”
• In digital image of M rows and N columns and L discrete gray levels, calculate the bits required to store a digitized image for M=N=32 and L=16
• A continuous image is digitised at _______ points
• The transition between continuous values of the image function and its digital equivalent is called ______________
• Images quantised with insufficient brightness levels will lead to the occurrence of ____________
• The smallest discernible change in intensity level is called ____________
• What is the tool used in tasks such as zooming, shrinking, rotating, etc.?
• The type of Interpolation where for each new location the intensity of the immediate pixel is assigned is ___________
• The type of Interpolation where the intensity of the FOUR neighbouring pixels is used to obtain intensity a new location is called ___________
• Dynamic range of imaging system is a ratio where the upper limit is determined by
• For Dynamic range ratio the lower limit is determined by
• Quantitatively, spatial resolution cannot be represented in which of the following ways
• The most familiar single sensor used for Image Acquisition is
• A geometry consisting of in-line arrangement of sensors for image acquisition
• CAT in imaging stands for
• The section of the real plane spanned by the coordinates of an image is called the _____________
• The difference is intensity between the highest and the lowest intensity levels in an image is ___________
• _____________ is the effect caused by the use of an insufficient number of intensity levels in smooth areas of a digital image
• The process of using known data to estimate values at unknown locations is called
• Which of the following is NOT an application of Image Multiplication?
• The procedure done on a digital image to alter the values of its individual pixels is
• In Geometric Spacial Transformation, points whose locations are known precisely in input and reference images
• Of the following, _________ has the maximum frequency
• How is array operation carried out involving one or more images?
• The property indicating that the output of a linear operation due to the sum of two inputs is same as performing the operation on the inputs individually and then summing the results is called ___________
• The property indicating that the output of a linear operation to a constant times as input is the same as the output of operation due to original input multiplied by that constant is called _________
• Enhancement of differences between images is based on the principle of ____________
• A commercial use of Image Subtraction is ___________
• Region of Interest (ROI) operations is commonly called as ___________
• If every element of a set A is also an element of a set B, then A is said to be a _________ of set B
• Consider two regions A and B composed of foreground pixels. The ________ of these two sets is the set of elements belonging to set A or set B or both
• Imaging systems having physical artefacts embedded in the imaging sensors produce a set of points called __________
• Image processing approaches operating directly on pixels of input image work directly in ____________

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