A comparison of block-matching motion estimation algorithms

Santamaría, María Paz Diago; Trujillo, María

doi:10.1109/colombiancc.2012.6398002

Cited by 21 publications

(16 citation statements)

References 11 publications

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“…For future research, the influence of different image reconstruction algorithms during the initial reconstruction step and other motion estimation algorithms such as various block-based motion estimations [4] or optical flow methods [12] will be investigated. To enhance the reconstruction quality when there is no motion, varying the nonregular sampling mask over time is another topic for future research.…”

Section: Discussionmentioning

confidence: 99%

“…The order of applying these different MEs can also be seen in this figure In this paper, a block-based ME algorithm is employed which is exemplarily described for the first ME. Instead of performing a straightforward block-matching as in [4], a modified matching is developed. Since it is desired to only use reliable pixels and not already extrapolated pixels, only original samples are considered for matching.…”

Section: Proposed Multi-frame Reconstructionmentioning

confidence: 99%

“…For the projection of pixels from one frame into another frame, motion vectors are required. They are computed by using a modified block-based motion estimation algorithm [4]. The paper is organized as follows: The next section introduces a state-of-the-art method to reconstruct incomplete images and Section III presents the proposed multi-frame reconstruction approach for non-regular sampled video data.…”

Section: Introductionmentioning

confidence: 99%

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Reconstruction of videos taken by a non-regular sampling sensor

Jonscher¹,

Seiler²,

Bätz³

et al. 2015

2015 Visual Communications and Image Processing (VCIP)

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Recently, it has been shown that a high resolution image can be obtained without the usage of a high resolution sensor. The main idea has been that a low resolution sensor is covered with a nonregular sampling mask followed by a reconstruction of the incomplete high resolution image captured this way. In this paper, a multi-frame reconstruction approach is proposed where a video is taken by a nonregular sampling sensor and fully reconstructed afterwards. By utilizing the temporal correlation between neighboring frames, the reconstruction quality can be further enhanced. Compared to a state-of-the-art singleframe reconstruction approach, this leads to a visually noticeable gain in PSNR of up to 1.19 dB on average.

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Section: Discussionmentioning

confidence: 99%

Section: Proposed Multi-frame Reconstructionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reconstruction of videos taken by a non-regular sampling sensor

Jonscher¹,

Seiler²,

Bätz³

et al. 2015

2015 Visual Communications and Image Processing (VCIP)

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“…Just like conventional block-based motion estimation [11] methods, DMVE relies on a translational motion model as this describes the predominant kind of motion in a typical video sequence. Since fisheye images are not based on a perspective projection function, they exhibit characteristics for which this model no longer holds true.…”

Section: Decoder Motion Vector Estimationmentioning

confidence: 99%

Temporal error concealment for fisheye video sequences based on equisolid re-projection

Eichenseer

Seiler

Bätz

et al. 2015

2015 23rd European Signal Processing Conference (EUSIPCO)

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Wide-angle video sequences obtained by fisheye cameras exhibit characteristics that may not very well comply with standard image and video processing techniques such as error concealment. This paper introduces a temporal error concealment technique designed for the inherent characteristics of equisolid fisheye video sequences by applying a re-projection into the equisolid domain after conducting part of the error concealment in the perspective domain. Combining this technique with conventional decoder motion vector estimation achieves average gains of 0.71 dB compared against pure decoder motion vector estimation for the test sequences used. Maximum gains amount to up to 2.04 dB for selected frames.

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“…Zero distinction approach outlines are evacuated when the separation between any two successive match outlines have zero contrast, particularly when the quantity of edge removed over twenty casings for every second. Maria Santamaria [3],square coordinating movement estimation is a viable calculation for lessening the fleeting excess in video coding and is embraced by video coding benchmarks. Many quick square coordinating calculations have been conceived to lessen the computational many-sided quality without corrupting estimation quality.…”

Section: Introductionmentioning

confidence: 99%

Design of High-Speed H.265 Sample Adaptive Offset Estimation for Ultra-Hd TV Encoding using Clock Synchronization Code

Shiyamala¹,

Rani²

2019

IJRTE

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Sample adaptive offset (SAO) is a recently presented in-circle separating segment in H.265/High Efficiency Video Coding (HEVC). SAO adds to a striking coding effectiveness enhancement; the estimation of SAO parameters commands the multifaceted nature of in-circle sifting in HEVC encoding. Double clock engineering that procedures statistics collection (SC) and parameter decision (PD), the two principle useful squares of SAO estimation, at high-and low-speed timekeepers, separately. Such a technique decreases the general zone by 56% by tending to the heterogeneous information streams of SC and PD. This exploration work endeavors to ad lib the working clock speed by adjusting a double clock synchronizer VLSI structure of H.265 ultra HD encoder and control minimization. To additionally enhance the territory and power productivity, calculation engineering co-improvements are connected, including a coarse range selection (CRS) and an accumulator bit width reduction (ABR). They together may accomplish another 25% territory decrease. The proposed VLSI configuration is fit for handling 8k at 120-outlines/s encoding

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A comparison of block-matching motion estimation algorithms

Cited by 21 publications

References 11 publications

Reconstruction of videos taken by a non-regular sampling sensor

Reconstruction of videos taken by a non-regular sampling sensor

Temporal error concealment for fisheye video sequences based on equisolid re-projection

Design of High-Speed H.265 Sample Adaptive Offset Estimation for Ultra-Hd TV Encoding using Clock Synchronization Code

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