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Full search block matching algorithm (FSBMA) for motion estimation requires a high level of computations, rendering the technique unsuitable for real-time imaging applications. To alleviate this problem, extensive research for developing faster motion estimation techniques has been conducted. As expected, reducing computational complexity comes at the expense of the image quality. This paper presents...
Motion information scalability is an important requirement for a fully scalable video codec, a novel and fully scalable motion model (SMM) is proposed to enable a scalable video codec to achieve optimality over a wide range of bit rate, resolution, and frame rate. In SMM, Full search algorithm for motion estimation can find the best matching region in the search area of the reference frame. However,...
The UMHexagonS algorithm has been accepted for the possible implementation of the block motion estimation process in the H.264 video coding standard due to its high accuracy and low computational requirement. And there were also many modifications coming up with it. In article, the author offered several improvements which reduce the computational complexity of the UMHexagonS algorithm with a little...
The block motion estimation is a very time consuming part in the H.264 video coding standard. Although many fast motion estimation algorithms have been proposed to reduce the huge calculation complexity instead of full search, the motion estimation time still can not satisfy the critical real-time application. This paper proposes a new fast motion estimation algorithm, which improves on the UMHexagonS...
This paper proposes two efficient frame selection methods to improve rate distortion performance and to reduce the computation complexity for frame selection. The proposed Reference Selection Pass (RSP) method can simplify early termination conditions by using the results of the previous coded blocks. The improved frame selection (IFS) method controls the number of reference frames according to the...
The UMHexagonS algorithm has been accepted for the possible implementation of the block motion estimation process in the H.264 video coding standard due to its high accuracy and low computational requirement. In this paper, a new algorithm is proposed, which improves on the UMHexagonS algorithm in three aspects. Firstly, a new prediction vector is added for avoiding being trapped in a local minimum...
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