Tencent has filed a patent for an image processing method and apparatus that can acquire a target object through narrow-band filters and fuse multiple narrow-band channel images to obtain a color image with the target object’s contour. The method is performed by an electronic device with multiple narrow-band filters. GlobalData’s report on Tencent gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Tencent, file server virtualization was a key innovation area identified from patents. Tencent's grant share as of September 2023 was 46%. Grant share is based on the ratio of number of grants to total number of patents.
Image processing method using narrow-band filters to obtain color image

A recently filed patent (Publication Number: US20230319378A1) describes an image processing method performed by an electronic device. The method involves acquiring a target object through multiple narrow-band filters to obtain narrow-band channel images. These narrow-band channel images are then fused together to create a color image that represents the contour of the target object.
The electronic device mentioned in the patent includes a photosensitive chip with regularly arranged narrow-band filters in a matrix form. The method involves performing image acquisition processing on the target object through the photosensitive chip, followed by channel splitting processing based on each narrow-band filter. The intermediate channel images obtained through this process are then interpolated to generate the narrow-band channel images.
The patent also describes a method for fusing the narrow-band channel images. This involves determining the pixel values of each pixel in the image corresponding to the multiple narrow-band channel images. These pixel values are then synthesized to obtain multi-channel pixel values, which are stitched together to create the final color image representing the contour of the target object.
The patent further discusses variations of the method, including determining partial narrow-band filters from the multiple filters and fusing the corresponding narrow-band channel images to obtain the color image. The determination of partial filters can be based on filtering indexes or frequencies of use.
The electronic device described in the patent includes a housing, at least one memory for storing program code, multiple narrow-band filters on a photosensitive chip, and at least one processor. The processor reads the program code and performs the image acquisition and fusion processes as instructed.
Additional components mentioned in the patent include an achromatic lens for focusing narrow-band waves onto the photosensitive chip, a diaphragm for protection, and a light source apparatus providing different types of light sources and illumination modes.
Overall, this patent describes an image processing method and electronic device that utilize multiple narrow-band filters to acquire and fuse images, resulting in a color image representing the contour of a target object. The method offers variations in filter selection and fusion techniques, providing flexibility in image processing.
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