The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Pointing at the defect of Space Frequency Algorithm in abstracting detail information used in Regional Feature Self-Adaptive Image Fusion Algorithm, an improved Spatial Frequency Algorithm is proposed. Firstly, the histogram specification is used to adjust pixel values of the infrared image. Secondly, the multi-scale decomposition is performed on visible image and the adjusted infrared image using...
High-resolution aerial camera needs to cache position controlling parameters and large amounts of image data, pointing at this issue, a SDRAM controller used in high-speed and large-capacity caching system is researched. Firstly, the necessity of caching image data in high-resolution aerial camera is explained. Based on the feature of the CMOS outputted data format and character of SDRAM element,...
Because of the non-uniform response of infrared focal plane arrays (IRFPA), non-uniformity correction is a key technology in IRFPA application. The two-point correction algorithm is widely used in practical applications, but there are some disadvantages. The detector's response will drift with time and temperature, correction parameters will drift with this accordingly. In order to acquire good quality...
A calculation of exposure time based on the light measurement often refer to errors in the deepness space detection duo to darkness background of deepness space and over hundreds of kilometers between the camera and the target. However, the use of based on an auto-exposure statistic and compensation method overcome those defects that mentioned before. Consequently, average gray level in the object...
Visualization of large scale time-varying scientific data has been a challenging problem due to their ever-increasing size. Identifying and presenting the most informative (or important) aspects of the data plays an important role in facilitating an efficient visualization. In this paper, an information assisted method is presented to locate temporal and spatial data containing salient physical features...
This paper is concerned the limitation of the knowledge and its discovery and propaganda processes. All the knowledge is the reflection of the world and knowledge itself. We can divide the knowledge into static and dynamic forms according by its object. Static knowledge can't be perfect as the Set theory has proved. Dynamic knowledge can't be Precise. All the knowledge can't handle the world as a...
An extensible and Portable Data Mining Algorithm Library model is proposed in this paper. The architecture of the proposed algorithm library model is constructed based on the object-oriented thought firstly. Algorithm adding sub-module is designed to achieve extensibility of the proposed model. And in algorithm calling scheme, hierarchical control mechanism is adopted to enhance the portability of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.