The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Dalam kertas kerja ini, kami menunjukkan bahawa fenomena penajaman gerakan boleh dijelaskan sebagai satu bentuk topeng visual untuk kes khas di mana urutan video terdiri daripada bingkai ganti dengan tahap ketajaman yang berbeza. Bingkai ketajaman lebih tinggi berkelakuan untuk menutupi kekaburan bingkai berikutnya dengan ketajaman lebih rendah dan dengan itu mengekalkan kualiti persepsi keseluruhan jujukan. Dengan meminjam mekanisme untuk penyamaran visual, kami merumuskan model kuantitatif untuk memperoleh keadaan frekuensi spatial minimum yang mengekalkan kualiti subjektif bingkai yang bertopeng. Model kuantitatif mengambil kira tiga sifat asas isyarat video, iaitu saiz gerakan, pencahayaan purata dan kuasa setiap komponen frekuensi. Tindak balas psikofizikal terhadap perubahan sifat-sifat ini diperoleh melalui ujian penilaian subjektif menggunakan urutan video corak geometri mudah. Percubaan subjektif pada jujukan video semula jadi menunjukkan bahawa lebih daripada 75% penonton tidak dapat membezakan antara jujukan asal dan yang diproses menggunakan model kuantitatif.
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Salinan
Akira FUJIBAYASHI, Choong Seng BOON, "A Masking Model for Motion Sharpening Phenomenon in Video Sequences" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 6, pp. 1408-1415, June 2008, doi: 10.1093/ietfec/e91-a.6.1408.
Abstract: In this paper, we show that motion sharpening phenomenon can be explained as a form of visual masking for a special case where a video sequence is composed of alternate frames with different level of sharpness. A frame of higher sharpness behaves to mask the ambiguity of a subsequent frame of lower sharpness and hence preserves the perceptive quality of the whole sequence. Borrowing the mechanism for visual masking, we formulated a quantitative model for deriving the minimum spatial frequency conditions which preserves the subjective quality of the frames being masked. The quantitative model takes into account three fundamental properties of the video signals, namely the size of motion, average luminance and the power of each frequency components. The psychophysical responses towards the changes of these properties are obtained through subjective assessment tests using video sequences of simple geometrical patterns. Subjective experiments on natural video sequences show that more than 75% of viewers could make no distinction between the original sequence and the one processed using the quantitative model.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.6.1408/_p
Salinan
@ARTICLE{e91-a_6_1408,
author={Akira FUJIBAYASHI, Choong Seng BOON, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Masking Model for Motion Sharpening Phenomenon in Video Sequences},
year={2008},
volume={E91-A},
number={6},
pages={1408-1415},
abstract={In this paper, we show that motion sharpening phenomenon can be explained as a form of visual masking for a special case where a video sequence is composed of alternate frames with different level of sharpness. A frame of higher sharpness behaves to mask the ambiguity of a subsequent frame of lower sharpness and hence preserves the perceptive quality of the whole sequence. Borrowing the mechanism for visual masking, we formulated a quantitative model for deriving the minimum spatial frequency conditions which preserves the subjective quality of the frames being masked. The quantitative model takes into account three fundamental properties of the video signals, namely the size of motion, average luminance and the power of each frequency components. The psychophysical responses towards the changes of these properties are obtained through subjective assessment tests using video sequences of simple geometrical patterns. Subjective experiments on natural video sequences show that more than 75% of viewers could make no distinction between the original sequence and the one processed using the quantitative model.},
keywords={},
doi={10.1093/ietfec/e91-a.6.1408},
ISSN={1745-1337},
month={June},}
Salinan
TY - JOUR
TI - A Masking Model for Motion Sharpening Phenomenon in Video Sequences
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1408
EP - 1415
AU - Akira FUJIBAYASHI
AU - Choong Seng BOON
PY - 2008
DO - 10.1093/ietfec/e91-a.6.1408
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2008
AB - In this paper, we show that motion sharpening phenomenon can be explained as a form of visual masking for a special case where a video sequence is composed of alternate frames with different level of sharpness. A frame of higher sharpness behaves to mask the ambiguity of a subsequent frame of lower sharpness and hence preserves the perceptive quality of the whole sequence. Borrowing the mechanism for visual masking, we formulated a quantitative model for deriving the minimum spatial frequency conditions which preserves the subjective quality of the frames being masked. The quantitative model takes into account three fundamental properties of the video signals, namely the size of motion, average luminance and the power of each frequency components. The psychophysical responses towards the changes of these properties are obtained through subjective assessment tests using video sequences of simple geometrical patterns. Subjective experiments on natural video sequences show that more than 75% of viewers could make no distinction between the original sequence and the one processed using the quantitative model.
ER -