In recent years, many deep learning-based methods have been proposed to tackle the problem of optical flow estimation and achieved promising results. However, they hardly consider that most videos are compressed and thus ignore the pre-computed ...

Image stabilisation aims to compensate and smoothen the effects of undesired trembling motion of cameras mounted on non‐static platforms. It becomes quite a challenging task in the case of moving platforms, such as ground vehicles, unmanned aerial ...

In the preceding video compression method, some limitations required to be enhanced, i.e., the compression ratio has to be improved. To enhance the conventional method negative aspect, an innovative video compression method employing diamond search depend ...

In the field of public health care, fall detection is one of the major problem, especially for elderly persons. For that, an effective surveillance system is a necessity to reduce injuries caused by falls. Our article presents a new method to detect ...

From facial lacerations that follow slight stretching of the skin, to deformations of hard bodied objects or subtle nuances of water simulations, our tool can automatically warp an image across an entire sequence from any arbitrary frame to any other ...

In this paper the effectiveness of the methods for the determination of objects movement between frames in a video sequence was investigated applying to the task of roundwood parameters control. The phase correlation method shows the best value for the ...

AbstractThe current research concerns the problem of video stabilization "in a point", which aims to stabilize all video frames according to one chosen reference frame to produce a new video, as by a static camera. Similar task importance relates ...

In order to realize movement target detection and tracking, the sonar image sequence movement target detection based on Surfacelet transform at complex background is proposed. Firstly, sonar image characteristic area extract based on Surfacelet ...

Various methods of automatic shot boundary detection have been proposed and claimed to perform reliably. Although the detection of edits is fundamental to any kind of video analysis since it segments a video into its basic components, the shots, only ...

Colonoscopy is the preferred screening method currently available for detection of colorectal cancer and its precursor lesions, colorectal polyps. However, recent data suggest that there is a significant miss rate for the detection of polyps in the ...

Video stabilization is an important technique in present day digital cameras as most of the cameras are hand-held, mounted on moving platforms or subjected to atmospheric vibrations. Motion estimation is a bottleneck in the stabilization pipeline as it ...

The rail transport systems, including railway, MRT, and latest high speed rail, all play a major role in Taiwan public transit circuits. According to statistics, over 2,360,000 passengers use these railway systems every day. Therefore, how to strengthen ...

Since the bandwidth of channels is finite in a practical video compression and transmission system, down-sampling techniques are usually adopted to reduce the rate of bit stream in the transmitter before video compression. Thus the reconstructed frames ...

This paper deals with data hiding in compressed video. Unlike data hiding in images and raw video which operates on the images themselves in the spatial or transformed domain which are vulnerable to steganalysis, we target the motion vectors used to ...

In this paper we present a method for blindly estimating the quantization parameter (QP) and the motion-vectors in H.264/AVC decoded video. We assume that only the decoded pixel values are available. This models pretty well the dissemination over the ...

In this paper, we present a vision-based traffic measurement system, allowing automatic traffic flow segmentation, camera calibration and traffic information estimation. The system quickly estimates mean vehicle speed directly from MPEG Motion Vectors. ...

In this paper we propose a new method of using motion estimation for the purpose of offline recognition of machine-print Hindi digits. The recognition process can be summarized as follows: an image of each of the ten numerals (numbers 0 to 9) is stored, ...

In general, all the video super-resolution (SR) algorithms present the important drawback of a very high computational load, mainly due to the huge amount of operations executed by the motion estimation (ME) stage. Commonly, there is a trade-off between ...

In this paper, we propose a method to estimate affine motion parameters from consecutive images with the assumption that the motion in progress can be characterized by an affine model. The motion may be caused either by a moving camera or moving object. ...

Geometry compression is the coding of 3D geometric data in a form that requires less space to store and less bandwidth to transmit. Animated geometry compression is the compression of temporal sequences of geometric data. An octree-based motion ...