Multimedia
22 questions · IT Passport
Which of the following is an appropriate description of AR (Augmented Reality)?
On a display screen, various colors are created through additive color mixing with three colors, namely red, green, and blue. When the red, green, and blue are mixed evenly, which of the following colors is formed?
Which of the following is a technology that projects things such as video made with computer graphics on to buildings, objects, and other such three-dimensional things, and produces a variety of visual effects?
Which of the following is a data format that can be used to compress both video and audio data?
As sightseeing guidance, images of buildings from the past and explanatory information are displayed on top of the current actual scenery when a smartphone is pointed at a historic site or other such site. Which of the following is the most appropriate term to describe the mechanism that is utilized?
When the process for a smart speaker to provide a voice response to the content of a user speaking to a smart speaker is as in (1) through (4), which of the following is the process that corresponds to voice recognition?
Sound signals are digitized. Sampling is performed at Time 1 through Time 5 in the figure below, and four-level quantization is performed; in other words, the levels closest to the sampling point are selected. After that, two-bit encoding is performed. The result is “11 01 00 10 11”. When digitization is performed in the same way, which of the following figures represents the sound signal that results in “01 00 10 11 01”?
A technique that represents a figure with pixels is considered. In the case of Fig. 1, when each row of the figure of 3×3 pixels is read on a pixel-by-pixel basis from upper left to right and B and W are respectively written for black and white, the result is “BWBBBBBWB” (9 characters). Then, when a succession of n characters of “B”s or “W”s is represented as “Bn” or “Wn” respectively (where n is an integer of 2 or greater), Fig. 1 can be represented as “BWB5WB” (6 characters) and the compression ratio in this case is defined as 6/9 or 66.7%. When the figure of 5×5 pixels in Fig. 2 is represented by using the same technique, what is the compression ratio in percentage?
Which of the following is the copyright protection technology that is used for a DVD-R and an SD card, and allows digital content to be duplicated to recording media only once?
Which of the following is the unit that represents the resolution when a photograph or a picture is read by a scanner?
Which of the following is the most appropriate explanation of virtual reality?
When a sound is recorded in a computer file, it is to be stored as a series of 8-bit encoded data. When the same sound source is sampled at the same sampling frequency and then encoded as a series of 16-bit data in lieu of 8-bit data, which of the following is an appropriate description concerning this encoding?
Which of the following is an appropriate description concerning the characteristics of video distribution using streaming?
Which of the following is an explanation of DRM (Digital Rights Management), which is used for digital content?
With regard to the colors printed by a printer, theoretically, what color is formed when cyan, magenta, and yellow are mixed together by subtractive color mixing?
Which of the following is an appropriate description of raster graphics, which is a method of handling the graphics that is used as a collection of points called pixels in painting software?
Which of the following is the appropriate combination of compression technology standards for still images, moving images, and audio?
Which of the following is an appropriate explanation of raster graphics, which is a method of handling the graphics that is used as a collection of points called pixels in painting software?
A PC plays back video data recorded at 500×400 pixels per frame, 30 frames per second, and 3 bytes per pixel while reading it from a peripheral device. When the data transfer rate between the peripheral device and the PC is 1×10^6 bytes per second, in order to play back the video without delay, the data must be compressed to one n-th (1/n) in advance. Which of the following is the minimum value of n? Here, the time to expand the compressed data and other impacts can be ignored.
Which of the following is an international standard for a compression method for still (or static) images?
Which of the following is the image data that is pasted onto the documents and web pages created by the word-processing software and presentation software so as to improve the expressive power?