Fisheye cameras have become extremely popular in applications where the goal is to capture large fields of view with only one camera. However, wide-angle fisheye imagery has special characteristics that may not be very well suited for modern video codecs employ block-based translational motion model. This model fails describe complex deformable which often present videos. In this paper, we advocate usage elastic compensating such a motion. The presented design enables re-use existing codecs,...

Immersive media representation format based on point clouds has underpinned significant opportunities for extended reality applications. Point cloud in its uncompressed require very high data rate storage and transmission. The video compression (V-PCC) technique projects a dynamic into geometry texture sequences. projected is then coded using modern coding standard like HEVC. Since the properties of frames are different from traditional frames, HEVC-based commonality modeling can be...

Experimental results and the latest standards have proved that segmentation based video coding systems can outperform traditional block-based systems. However, this approach requires simultaneous estimation of both shape motion moving objects in a scene. In most cases neither nor are known initially. Another critical aspect tightly-coupled relationship is inaccurate may cause poor erroneous negatively impact estimation. While some existing approaches require user intervention use clues such...

Immersive media representation format based on point clouds has underpinned significant opportunities for extended reality applications. Point cloud in its uncompressed require very high data rate storage and transmission. The video compression technique projects a dynamic into geometry texture sequences. projected is then coded using modern coding standard like HEVC. Since the properties of frames are different from traditional frames, HEVC-based commonality modeling can be inefficient. An...

Point cloud in its uncompressed format require very high data rate for storage and transmission. The video based point compression (V-PCC) technique projects a dynamic into geometry texture sequences. projected frames are then encoded using modern coding standard like HEVC. However, HEVC encoder is unable to exploit the global commonality that exists within frame between successive greater extent. This because HEVC, current partitioning starts from rigid $64 \times 64$ pixels level without...

Experimental results and the latest standards have proved video coding systems with ability to adapt size shape of motion estimation area objects in scene can outperform traditional block-based systems. In this paper, a segmentation-based strategy that employs bi-directional hints for interframe prediction is proposed. The appealing thing about they are continuous invertible, even though observed field frame will be discontinuous non-invertible. proposed scheme outperforms rate-distortion...

Traditional video coding standards employ block-based translational motion modelwhere all the pixels inside current block are assigned a single vector. Thisuniformity of within assumption does not hold if containsa discontinuity. To improve gain, modern codecs partitionblocks around object boundaries into smaller square or rectangular sub-blocks. The prediction residual energy frame is minimized at expense increasing bit rate to code data. inspiration behind hints move away from this...

Traditional video coding uses the motion model to approximate geometric boundaries of moving objects where discontinuities occur. Motion hints based inter-frame prediction paradigm moves away from this redundant approach and employs an innovative framework consisting hint fields that are continuous invertible, at least, over their respective domains. However, estimation is computationally demanding, in particular for high resolution sequences. In paper, we propose discover models associated...

Recent advances in motion modelling have largely focused on careful partitioning of blocks the vicinity object boundaries. The need for such fine can be avoided by using hints which provide a global description over specific domains. Experimental results show that, with hybrid setting, more than 50% discontinuity macroblocks are coded mode low bit rate cases. use this leads to gain prediction PSNR 1.11 dB, or equivalently 17.05% savings rate, when compared H.264/AVC reference and considering...

In conventional video compression systems, motion model is used to approximate the geometry of moving object boundaries. It possible relieve from describing discontinuities in underlying field, by incorporating hint that can predict spatial structure future frames using reference frames. However, formation highly accurate computationally demanding, particular for high resolution sequences. Cuboids, rectangular regions derived statistical features, attempt separate out different objects...

Video coding algorithms attempt to minimize the significant commonality that exists within a video sequence. Each new standard contains tools can perform this task more efficiently compared its predecessors. In work, we form coarse representation of current frame by minimizing while preserving important structural properties frame. The building blocks are rectangular regions called cuboids, which computationally simple and has compact description. Then propose employ as an additional source...

Conventional video compression systems use motion model to approximate the geometry of moving object boundaries. Motion can be relieved from describing discontinuities in underlying field, by employing hint that exploits spatial structure reference frames infer appropriate boundaries for future ones. However, estimation highly accurate is computationally demanding, particular high resolution sequences. Leveraging on advantages homogeneous discovery oriented prediction, this paper, we propose...

Motion modelling plays a central role in video compression. This is even more critical highly textured sequences, whereby small error can produce large residuals that are costly to compress. While the translational motion model employed by existing coding standards, such as HEVC, sufficient most cases, using higher order models beneficial; for this reason, upcoming standard, VVC, employs 4-parameter affine model. In work, we explore use of discrete cosine basis and show beneficial....

Video coding algorithms attempt to minimize the significant commonality that exists within a video sequence. Each new standard contains tools can perform this task more efficiently compared its predecessors. Modern systems are block-based wherein modeling is carried out only from perspective of block need be coded next. In work, we argue for approach provide seamless blending between global and local homogeneity information. For purpose, at first frame coded, recursively partitioned into...

Motion modeling plays a central role in video compression. This is even more critical fisheye sequences since the wide-angle imagery has special characteristics as exhibiting radial distortion. While translational motion model employed by modern coding standards, such HEVC, sufficient most cases, using higher order models beneficial; for this reason, upcoming standard, VVC, employs 4-parameter affine model. Discrete cosine basis ability to efficiently complex fields. In work, we investigate...

Efficient video compression relies heavily on mitigating the temporal redundancy that exists between successive frames. This is achieved through effective motion modelling. In conventional coding standards, of current frame modelled from neighbouring frames using block-based estimation techniques. However, as discontinuities are tied to moving objects in a frame, techniques unable model actual individual objects. this paper, an object-based hierarchical and prediction technique for...

Video coding algorithms encode and decode an entire video frame while feature techniques only preserve communicate the most critical information needed for a given application. This is because targets human perception, aims machine vision tasks. Recently, attempts are being made to bridge gap between these two domains. In this work, we propose framework by leveraging on commonality that exists applications using cuboids. cuboids, estimated rectangular regions over frame, computationally...

Segment-based temporal prediction combined with higher-order motion models have been studied as an alternative to conventional block-based translational inter prediction. One example of such studies is known hints, where affine model has used. In this paper, we explore the applicability hints elastic in generating reference frames for conventionally coded B-frames. The presented design enables re-use existing codecs, HEVC, without modifications low-level coding tools. Experimental results...

To capture motion homogeneity between successive frames, the edge position difference (EPD) measure based modeling (EPD-MM) has shown good compensation capabilities. The EPD-MM technique is underpinned by fact that from one frame to next, edges map and such mapping can be captured an appropriate model. An example of a model discrete cosine basis oriented (DCO) model, which complex smooth sparse representation. However, for higher resolution video sequences, baseline approach equipped with...

For 3D object representation, volumetric contents like meshes and point clouds provide suitable formats. However, a dynamic mesh sequence may require significantly large amount of data because it consists information that varies with time. Hence, for the facilitation storage transmission such content, efficient compression technologies are required. MPEG has started standardization activities aiming to develop standard would be able handle time varying connectivity attribute maps. The maps...

The study aimed to evaluate the sensory, nutritional, and physicochemical characteristics of meat from crossbred cattle (CBC) indigenous (IC) at different time intervals. Samples M. longissimus dorsi muscle were collected three Holstein-Friesian in Mymensingh district. analysis included two treatments based on genotype intervals, labeled T0 (0 hours) T24 (24 hours), was conducted using a 2×2 factorial design completely randomized format. assessed various factors such as sensory attributes...

We introduce a method for denoising digital image corrupted with additive noise. A dyadic Gabor filter bank is used to obtain localized frequency information. It decomposes the noisy into coefficients of different scales and orientations. Denoising performed in transform domain by thresholding phase preserving threshold non-phase where both approaches have been formulated as adaptive data-driven. For approach BayesShrink methods used. Finally using thresholded each channel denoised has...

Video coding algorithms tries to model the significant commonality that exists within a video sequence. This role is even more critical in 360-degree sequences given associated enormous amount of data need be stored and communicated. Moreover, such captured signal from omnidirectional cameras are projected onto plane; hence they exhibit different characteristics compared traditional frames. Therefore conventional block-based translational motion modeling approach employed by modern...

To capture motion homogeneity between successive frames, the edge position difference (EPD) measure based modeling (EPD-MM) has shown good compensation capabilities. The EPD-MM technique is underpinned by fact that from one frame to next, edges map and such mapping can be captured an appropriate model. However, for higher resolution video sequences, baseline approach, may fail approximate underlying field accurately. This due difficulty in fitting model parameters incorporating significantly...