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"Computer vision and pattern recognition. ", 84 (9), pp. 1265–1266 Additional informationNotes on contributorsNanning Zheng Email: nnzheng@mail. xjtu. edu. cn George Loizou Email: george@dcs. bbk. ac. uk Xuguang Lan Email: xglan@aiar. xjtu. edu. cn Xuelong Li Email: xuelongₗi@ieee. org
Zheng et al. (Thu,) studied this question.