Sony Group has been granted a patent for a system that evaluates similar content-based images. The method involves computing various values such as SSIM, SIFT, and histogram to determine a similarity score between two images. This technology could have applications in image recognition and comparison. GlobalData’s report on Sony Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Sony Group, Adaptive video coding was a key innovation area identified from patents. Sony Group's grant share as of February 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Image similarity evaluation system using ssim, sift, and histogram
A recently granted patent (Publication Number: US11928850B2) discloses a system for evaluating similar content-based images. The system comprises one or more processors and logic encoded in non-transitory computer-readable storage media. When executed, the system performs operations such as receiving two images, computing a structural similarity index measure (SSIM) value, a scale invariant feature transform (SIFT) value, an adjusted SIFT value, a histogram value, an adjusted histogram value, and finally, a similarity score based on these values. The SSIM value is based on luminance, contrast, and structure of the images, while the SIFT value is derived from predetermined features, and the histogram value is based on predetermined histogram values of the images.
Additionally, the patent includes claims for a non-transitory computer-readable storage medium with program instructions for evaluating similar content-based images and a computer-implemented method for the same purpose. Both the medium and the method involve similar operations as the system, including receiving images, computing SSIM and SIFT values, adjusting these values, calculating a histogram value, and ultimately determining a similarity score. The SSIM value, SIFT value, and histogram value are crucial components in assessing the similarity between the images, with each value contributing to the final similarity score. This patent highlights a comprehensive approach to image evaluation, utilizing multiple factors to determine the likeness between images accurately.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
