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.
Images encoded at low bit rate usually exhibit visually annoying coding artifacts, commonly referred as the blocking artifacts. The reason for causing blocking artifacts is that each 8×8 block is quantized and encoded independently, which results in block discontinuities between neighboring blocks. In this paper, a convex optimization problem is formulated to deal with the blocking artifacts. Total...
In this paper, we address the frame-level dependent bit allocation (DBA) problem in hybrid video coding. In most existing methods, the DBA solution is achieved at the expense of high, sometimes even unbearable, computational complexity because of the multipass coding involved. Motivated by this, we propose a model-based approach as an attempt to solve this problem analytically. Leveraging the predictive...
Adaptive quantization matrix design for different block sizes is one of the possible methods to improve the RD performance in video coding and has recently attracted the focus of many researchers. In this paper, we first analyze the shortcomings of the evenly distributed distortion method which was proposed recently. In order to tackle these problems, we propose two modified methods, method I with...
In the high frequency (HF) band, a continuum bandwidth for achieving the desired range resolution is difficult to find. Besides, the power which returns from ship targets is usually lower than the levels of sea clutters at higher sea states. Therefore, it is difficult to distinguish desired targets by conventional approaches. In this paper, a multi-frequency frequency modulated continuous wave (FMCW)...
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.