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Yasutaka Hirasawa

Researcher at Sony Broadcast & Professional Research Laboratories

Publications -  43
Citations -  269

Yasutaka Hirasawa is an academic researcher from Sony Broadcast & Professional Research Laboratories. The author has contributed to research in topics: Pixel & Image processing. The author has an hindex of 8, co-authored 43 publications receiving 217 citations.

Papers
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Journal ArticleDOI

3.2-MP Back-Illuminated Polarization Image Sensor With Four-Directional Air-Gap Wire Grid and 2.5- $\mu$ m Pixels

TL;DR: In this paper, a 3.2-MP four-directional polarization image sensor with air-gap wire-grid polarizer is described, which is suitable for various megapixel fusion-imaging applications, such as reducing surface reflections, highly accurate depth mapping, and condition robust surveillance.
Patent

Image processing method and apparatus, and program

TL;DR: In this paper, an image converter converts the resolution of the imaged frame supplied from the imaging unit or the image input unit into a resolution that can be represented by the output unit, generating an output frame having x×y pixels.
Patent

Image processing device, image processing method, and imaging device

TL;DR: In this article, a depth map generation unit (15) generates depth maps through a matching process using a first image generated by a first imaging unit which has a pixel configuration including pixels having different polarization directions.
Book ChapterDOI

Accurate Polarimetric BRDF for Real Polarization Scene Rendering.

TL;DR: A new polarimetric BRDF (pBRDF) model is proposed and its accuracy is proved by fitting the model to measured data with variety of light and camera conditions and experiments show that the CNN trained by the polarized images has more accuracy than one trained by RGB only.