![]() The end product of the computer graphics is a picture it may be a business graph, drawing, and engineering. commercial motion pictures.Ĭomputer Graphics is the creation of pictures with the help of a computer. In today life, computer graphics has now become a common element in user interfaces, T.V. The role of computer graphics insensible. ![]() The Process transforms and presents information in a visual form. Introduction of Computer GraphicsĬomputer Graphics involves technology to access. This tutorial describes how a rich visual experience is provided to the user by explaining how all these processed by the computer. Graphics on the computer are produced by using various algorithms and techniques. This method is simplified by using Computer graphics. The most significant difference that you should note here is that interlaced scan performs scanning of a frame by dividing it into two fields, whereas progressive scan performs scanning of the whole frame in a single pass.It is difficult to display an image of any size on the computer screen. It is promoted more in comparison to interlaced scan. It is not promoted as much as progressive scan. The video quality is better in progressive scan. No combing effect is present in progressive scan. The video being displayed is quicker in comparison to interlaced scan. The displaying video speed is less in comparison to progressive scan. ![]() It is more efficient in comparison to interlaced scan. It is less efficient in comparison to progressive scan. In progressive scan, scanning takes place frame by frame. In interlaced scan, the scanning takes place by dividing one frame. The following table highlights the important differences between interlaced scan and progressive scan − Interlaced Scan Difference between Interlaced Scan and Progressive Scan Another important advantage of progressive scan is that the speed of playing a video is faster which is approximately double of that in the case of interlaced scan. Progressive scan has the ability to capture and show the image of fast moving objects clearly. For this reason, progressive scanning is promoted more over interlaced scanning. Therefore, the video produced by progressive scanning is of high quality. Also, there is no combing effect present in case of progressive scanning. Progressive scanning is relatively more efficient than interlaced scanning, as it scans the image frame by frame. The working mechanism of the progressive scan uses an electron beam that continuously scans the image area from top to bottom. ![]() Progressive scanning is a scanning technique in which the scanning of a picture is performed in single pass sequentially. Interlaced scan was used in the early days, as it required less bandwidth. The combing effect produces zig-zag artifacts in the interlaced video or image. The major disadvantage of interlaced scanning is "combing" which degrades the video quality. The top field is one that includes the first line and the following alternate lines, whereas the bottom field is one that has the second set of alternate lines. As per the MPEG standards, the two fields are called "top field" and "bottom field". The time interval between two fields which is equal to half of the frame interval is known as field interval. Each field consists of half of the lines exists in the frame, and is called as 2:1 interlace. Interlaced scanning is a raster scanning technique in which the scanning of a picture is performed by partitioning a single frame into two parts. Let's start with some basics of interlaced scan and progressive scan individually. ![]() In this article, we will discuss the important differences between interlaced and progressive scan. The basic difference between interlaced scan and progressive scan is that the interlaced scan employs the scanning of even and odd marked lines of a picture which are displayed consecutively as two isolated fields that are superimposed to show one frame on the screen, while the progressive scan employs a single sweep over the whole picture at a time. Both interlaced and progressive scan are types of raster scanning techniques extensively used in analog video systems. ![]()
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