Name
Abstract | ||
|---|---|---|
This paper first shows the application of a storage tube with silicon target to various types of analog image processing. Examples of contrast enhancement by multiple writing, subtraction, lowpass filtering, spatial differentiation, and defocused masking of images are shown. Of particular interest is subtractive television. a frame of a scene observed by a television camera at a certain time is stored in the tube and then read out and subtracted from subsequent frames from the camera. Only the difference between the present frame and the stored frame remains in the output. This is especially useful for the observation of traffic flow, because all the stationary objects such as buildings, trees, etc, are cancelled out and only moving vehicles remain in the output. Thus, the volume of information to be handled is greatly reduced to within practical limits of computer processing and narrow band transmission. Both analog and digital processing of its output are presented. Digital processing has been successfully applied to the extraction of cars running on a straight road. |
Year | DOI | Venue |
|---|---|---|
1973 | 10.1016/0146-664X(73)90015-4 | Computer Graphics and Image Processing |
Field | DocType | Volume |
Computer vision,Subtractive color,Traffic flow,Computer graphics (images),Masking (art),Computer science,Analog image processing,Professional video camera,Filter (signal processing),Artificial intelligence,Storage tube,Subtraction | Journal | 2 |
Issue | ISSN | Citations |
3 | 0146-664X | 1 |
PageRank | References | Authors |
4.96 | 0 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Morio Onoe | 1 | 9 | 8.10 |
| Nobuo Hamano | 2 | 1 | 5.30 |
| Kazuhiko Ohba | 3 | 1 | 4.96 |