3 results about "Image post processing" patented technology

Several new techniques for designing nanophotonic scintillators which lead to optimal performance and novel functionalities. Important design concepts include the use of absorbing structures inspired by solar cells, angularly-selective structures, and metasurfaces. Scintillators based on conventionally overlooked materials (such as GaAs or GaN) are also disclosed, which are designed to reach efficiencies comparable or superior to state-of-the-art conventional scintillators (such as YAG:Ce and LYSO). Such scintillators provide important enhancement of scintillation yield arising from incorporation of nanophotonic patterns. Additionally, nanophotonic scintillators designed in conjunction with image post processing algorithms (such as deconvolution algorithms, tomographic reconstruction, etc.) are disclosed. These scintillators are designed in order to increase robustness, minimize the required dose / scan time or even the number of scans required in scintillation imaging. These new designs optimize the scintillator for optimal reconstruction.

The invention relates to the technical field of image processing, in particular to an image pixel processing method, device and equipment and a storage medium, and the method comprises the steps: receiving image data of an original image shot by a sensor, dividing n pixel points into a first set and a second set by detecting whether n first pixel values are 0, determining a first virtual black level in the first set according to the first pixel value, the true value black level and the bit width, setting the black level of each pixel point in the second set as a second virtual black level, and performing statistics to obtain n virtual black levels corresponding to the n pixel points; cutting the n first pixel values to obtain n second pixel values; and performing image post-processing by using the n second pixel values to obtain an original image. According to the method, after virtual black level cutting is carried out, the pixel value of the obtained part of pixel points is not 0, and a small value is still reserved, so that pixel colors or details of an extremely dark area are reserved, and the contrast ratio and detail performance of the image are optimized.

This invention relates to the field of image processing technology, specifically to a pixel processing method, apparatus, device, and storage medium for images. The method includes: receiving image data of an original image captured by a sensor; dividing the n pixels into a first set and a second set by detecting whether n first pixel values ​​are 0; determining a first virtual black level in the first set based on the first pixel values, the true black level, and the bit width; setting the black level of each pixel in the second set to a second virtual black level; and statistically obtaining n virtual black levels corresponding to the n pixels; cropping the n first pixel values ​​to obtain n second pixel values; and performing post-processing on the image using the n second pixel values ​​to obtain the original image. After virtual black level cropping, this method retains some pixel values ​​that are not 0, preserving smaller values, thereby retaining pixel color or detail in extremely dark areas and optimizing image contrast and detail.