- 标题
- 摘要
- 关键词
- 实验方案
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Enhanced depth estimation of integral imaging using pixel blink rate
摘要： In this paper, we propose a new depth estimation technique with enhanced depth resolution in three-dimensional (3D) integral imaging. Typical integral imaging using a lenslet array can obtain elemental images with different perspectives by a single shot. However, the lateral and depth resolutions of the reconstructed 3D image may be low, which limit applications of integral imaging such as for object tracking, occlusion removal, and depth estimation. Especially, enhanced depth estimation may be required since depth is the most important information for all 3D applications. In this paper, we use the pixel rearrangement technique for visual quality enhancement of the reconstructed 3D image, and use pixel blink rate to evaluate the defocus area for depth estimation improvement. Our experimental results support that our method can enhance the depth resolution in typical integral imaging using lenslet arrays.
关键词： Depth estimation,Three-dimensional image acquisition,Three-dimensional image processing
更新于2025-09-23 15:23:52
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Simulated and Real Sheet-of-Light 3D Object Scanning Using a-Si:H Thin Film PSD Arrays
摘要： A MATLAB/SIMULINK software simulation model (structure and component blocks) has been constructed in order to view and analyze the potential of the PSD (Position Sensitive Detector) array concept technology before it is further expanded or developed. This simulation allows changing most of its parameters, such as the number of elements in the PSD array, the direction of vision, the viewing/scanning angle, the object rotation, translation, sample/scan/simulation time, etc. In addition, results show for the first time the possibility of scanning an object in 3D when using an a-Si:H thin film 128 PSD array sensor and hardware/software system. Moreover, this sensor technology is able to perform these scans and render 3D objects at high speeds and high resolutions when using a sheet-of-light laser within a triangulation platform. As shown by the simulation, a substantial enhancement in 3D object profile image quality and realism can be achieved by increasing the number of elements of the PSD array sensor as well as by achieving an optimal position response from the sensor since clearly the definition of the 3D object profile depends on the correct and accurate position response of each detector as well as on the size of the PSD array.
关键词： three-dimensional sensing,arrays,three-dimensional image acquisition,three-dimensional image processing,thin film devices and applications,optical sensing and sensors
更新于2025-09-04 15:30:14