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Patterned Photostimulation with Digital Micromirror Devices to Investigate Dendritic Integration Across Branch Points
Published on: March 2, 2011
[Research on the interlaced encoding pixels in Hadamard transform spectral imager based on DMD].
Jun Xu1, Bing-liang Hu, Da-zheng Feng
1Key Laboratory of Spectral Imaging Technique, Xi' an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China. xjsdcq@163.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|April 14, 2012
Summary
A new method addresses interlaced encoding in Hadamard transform spectral imagers (HTSI) using digital micro-mirror devices (DMD). This technique improves spectral image quality by accurately decoding affected pixels.
Area of Science:
- Optics and Photonics
- Image Processing
- Spectroscopy
Context:
- Hadamard transform spectral imagers (HTSI) utilize digital micro-mirror devices (DMD) for spectral encoding.
- The integration of DMD introduces an interlaced encoding phenomenon, complicating spectral recovery.
- Existing methods lack specific strategies for handling these interlaced pixels.
Purpose:
- To investigate and analyze the interlaced encoding phenomenon in DMD-based HTSI.
- To develop a novel positioning and decoding method for interlaced encoding pixels.
- To enhance the quality of recovered spectral images from HTSI.
Summary:
- An interlaced encoding phenomenon caused by DMD in HTSI was identified and analyzed.
- A positioning method was developed to identify interlaced pixels, and a decoding method was proposed.
- This method decodes interlaced pixels by applying inverse Hadamard transform to a second set of encoded images.
Impact:
- The proposed method effectively distinguishes and decodes interlaced encoding pixels.
- Experimental results validate the feasibility and effectiveness of the decoding technique.
- This work significantly improves the spectral image recovery quality in DMD-based HTSI systems.
