The following publications are possibly variants of this publication:
- Picture algebra for spatial reasoning of iconic images represented in 2D C-stringSuh-Yin Lee, Fang-Jung Hsu. prl, 12(7):425-435, 1991.
- 3D C-string: a new spatio-temporal knowledge representation for video database systemsAnthony J. T. Lee, Han-Pang Chiu, Ping Yu. PR, 35(11):2521-2537, 2002. [doi]
- 3D Z-string: A new knowledge structure to represent spatio-temporal relations between objects in a videoAnthony J. T. Lee, Ping Yu, Han-Pang Chiu, Ruey-Wen Hong. prl, 26(16):2500-2508, 2005. [doi]
- Similarity retrieval of videos by using 3D C-string knowledge representationAnthony J. T. Lee, Han-Pang Chiu, Ping Yu. jvcir, 16(6):749-773, 2005. [doi]
- Video Question Answering with Spatio-Temporal ReasoningYunseok Jang, Yale Song, Chris Dongjoo Kim, Youngjae Yu, Youngjin Kim, Gunhee Kim. ijcv, 127(10):1385-1412, 2019. [doi]