Zhiping Mu

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The ill-conditioned inverse problem of estimating ultrasonic medium responses by deconvolution of RF signals is investigated. The primary difference between the proposed method and others is that the medium response function is assumed to be complex-valued rather than restricted to being real-valued. Derived from the complex medium model, complex Wiener(More)
Coded aperture (CA) imaging originally developed in X-ray astronomy has not been widely used in nuclear medicine due to the decoding complexity of near-field CA images. In this paper, we present a near-field CA imaging technique and image reconstruction method for high sensitivity and high resolution single photon emission computerized tomography (SPECT).(More)
Fiducial tracking is a common target tracking method widely used in image-guided procedures such as radiotherapy and radiosurgery. In this paper, we present a multifiducial identification method that incorporates context information in the process. We first convert the problem into a state sequence problem by establishing a probabilistic framework based on(More)
  • Zhiping Mu
  • 2016 IEEE-EMBS International Conference on…
  • 2016
Digitally reconstructed radiograph (DRR) is vital to 2D/3D image registration, but computationally expensive to generate. Introduced in this paper is a novel fast DRR generation method that reuses building blocks of DRRs previously generated for known poses. The Slab algorithm is presented for illustration of the principle where projections of multiple(More)
OBJECTIVE To investigate clinical features of vertebral artery (VA) occlusion and recanalization after cervical facet dislocation. METHODS During a 2-year period from January 2014 to December 2015, 29 consecutive patients with cervical facet dislocation were treated in investigator group. VA occlusion and recanalization were identified retrospectively by(More)
Coded aperture imaging for two-dimensional (2D) planar objects has been investigated extensively in the past, whereas little success has been achieved in imaging 3D objects using this technique. In this article, the authors present a novel method of 3D single photon emission computerized tomography (SPECT) reconstruction for near-field coded aperture(More)
  • Zhiping Mu
  • 2016 IEEE Conference on Computer Vision and…
  • 2016
In three-dimensional to two-dimensional (3D-2D) image registration, DRR (digitally reconstructed radiograph) generation is often a bottleneck in computation. In this article, a novel fast DRR generation scheme is proposed based on the recently introduced Block Projection method and Slab algorithm that reuse building blocks of DRRs previously generated for(More)
A multi-fiducial identification method for image guided radiotherapy and radiosurgery is presented. A modified hidden Markov model is adopted to incorporate context information. A novel algorithm, modified from the Viterbi algorithm, is introduced to identify fiducials concurrently in two orthogonal projections. This method is robust and efficient, requires(More)