JOURNAL ARTICLE

Disparity Estimation for Intermediate View Reconstruction of Multi-view Video

Mi-Nam ChoiJung-Hwan YunJi‐Sang Yoo

Year: 2008 Journal:   Journal of Broadcast Engineering Vol: 13 (6)Pages: 915-929

Abstract

본 논문은 다시점 카메라로부터 획득된 영상을 이용하여 영상내의 모든 화소에 대한 정확한 변이 정보를 구하는 알고리듬을 제안한다. 제안한 방법은 객체의 경계 정보를 고려하여 초기 변이를 예측한 후 획득된 변이 정보를 이용하여 탐색 범위를 줄임으로 써 효율적으로 변이를 예측한다. 또한 가변 블록을 사용하여 텍스쳐 정보가 부족한 영역과 경계부분에서 발생하는 오정합 문제를 줄일 수 있다. 획득된 변이 맵 정보를 이용하여 중간시점영상을 생성한 결과 기존의 블록기반 변이 추정방식과 화소기반의 변이 예측방식에 비해 $0.1dB{\sim}1.2dB$의 PSNR(Peak signal to noise ratio)이 향상되는 것을 확인하였다. In this paper, we propose an algorithm for pixel-based disparity estimation with reliability in the multi-view image. The proposed method estimates an initial disparity map using edge information of an image, and the initial disparity map is used for reducing the search range to estimate the disparity efficiently. Furthermore, disparity-mismatch on object boundaries and textureless-regions get reduced by adaptive block size. We generated intermediate-view images to evaluate the estimated disparity. Test results show that the proposed algorithm obtained $0.1{\sim}1.2dB$ enhanced PSNR(peak signal to noise ratio) compared to conventional block-based and pixel-based disparity estimation methods.

Keywords:
Artificial intelligence Pixel Peak signal-to-noise ratio Computer vision Block (permutation group theory) Computer science Image (mathematics) Range (aeronautics) Reliability (semiconductor) Enhanced Data Rates for GSM Evolution Signal-to-noise ratio (imaging) Noise (video) SIGNAL (programming language) Mathematics Pattern recognition (psychology)

Metrics

2
Cited By
0.29
FWCI (Field Weighted Citation Impact)
10
Refs
0.65
Citation Normalized Percentile
Is in top 1%
Is in top 10%

Citation History

Topics

Advanced Vision and Imaging
Physical Sciences →  Computer Science →  Computer Vision and Pattern Recognition
Advanced Image Processing Techniques
Physical Sciences →  Computer Science →  Computer Vision and Pattern Recognition
Image and Video Quality Assessment
Physical Sciences →  Computer Science →  Computer Vision and Pattern Recognition

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