Yimin Hou

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What makes a good movie trailer? It's a big challenge to answer this question because of the complexity of multimedia in both low level sensory features and high level semantic features. However, human perception and reactivity could be straightforward evidence for evaluation. Modern Electro-encephalography (EEG) technology provides measurement of(More)
A new method for Nuclear Magnetic Resonance Image(MRI) segmentation based on Gaussian mixture model and Markov Random Field (MRF) is proposed in this paper. The MRI can be regard as a Gaussian mixture model. The image segmentation result is a MRF. So, a Maximum A Posterior (MAP) can be used in the image segment process according to Bayesian theorem. The(More)
The title mol-ecule, C(10)H(8)ClN(3)O(7), is twisted with the dihedral angle between the amide and benzene ring being 38.75 (11)°. The C-N-C-C torsion angle between the amide and acetyl groups is -150.1 (2)°. Finally, each nitro group is twisted out of the plane of the benzene ring to which it is connected [O-N-C-C torsion angles = 34.0 (3) and -64.5 (3)°].(More)
In the title compound, C(8)H(20)N(+)·CHO(3) (-)·3H(2)O, the bicarbon-ate anion, which has a small mean deviation from the plane of 0.0014 Å, fully utilises its three O and one H atom to form various O-H⋯O hydrogen bonds with the three water mol-ecules in the asymmetric unit, generating a hydrogen-bonded layer, which extends along (10[Formula: see text]).(More)
In the title compound, 3[(CH(3))(3)HN(+)]·3C(3)H(2)N(3)S(3) (-)·H(2)O, two independent trithio-cyanurate anions construct a planar hydrogen-bonded ribbon with two N-H⋯S hydrogen bonds linking each pair of adjacent anions in the chain. The third independent anion and the water mol-ecule form a chain by way of N-H⋯S and O-H⋯S contacts, which propagates(More)