Abstract: A product description generating system dynamically generates a description of an item based on one or more images. The product description generating system includes an attribute machine learning system that receives images of the item and determines at least one attribute value and corresponding prediction confidence value based on the image data. The user review interface provides an interface for reviewing attribute values generated by the attribute machine learning system. If the prediction confidence value is outside a threshold, then the attribute value is reviewed by a user via the user review interface. If, on the other hand, the prediction confidence value is within a threshold, then the attribute value is used to generate the description without user review. The user review interface groups items to be reviewed by taxon and facilitates user review of many items at scale.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. Signature information of the gemstone is obtained and compared to stored signature information. The signature information includes angular spectrum information generated by the imaging assembly while a colored light pattern is reflected onto the gemstone. The signature information uniquely identifies the gemstone and indicates whether an entity was the source of the gemstone. The signature information comparison involves comparing an angular spectrum image obtained by the imaging assembly to stored angular spectrum images. In one example, the system compares the obtained signature information to stored signature information to validate a source of the gemstone. In another example, the system obtains signature information of the gemstone and forwards the signature information to a remote validation system.

Abstract: A color correction system comprises a correction information generator and an image processor. The correction information generator generates color correction information from a color correction image associated with a plurality of images. The image processor automatically processes the plurality of images based on the color correction information to generate a plurality of color-corrected images. In operation, images and a color correction image associated with the images are received. Next, color correction information is generated from the color correction image. For example, color correction information includes a color correction matrix or white balance parameters. Next, the images are automatically processed based on the color correction information thereby generating color-corrected images. The system automates color correction processing of studio images to provide highly scalable and reliable color correction.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. Signature information of the gemstone is obtained and compared to stored signature information. The signature information includes angular spectrum information generated by the imaging assembly while a colored light pattern is reflected onto the gemstone. The signature information uniquely identifies the gemstone and indicates whether an entity was the source of the gemstone. The signature information comparison involves comparing an angular spectrum image obtained by the imaging assembly to stored angular spectrum images. In one example, the system compares the obtained signature information to stored signature information to validate a source of the gemstone. In another example, the system obtains signature information of the gemstone and forwards the signature information to a remote validation system.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.

Abstract: A system comprises a faceted structure imaging assembly and a faceted structure image analyzer. The system is configured to determine carat weight of a gemstone while in a mounted setting. In a first mode, the imaging assembly obtains a first image of a top gemstone surface. The image analyzer uses the first image to obtain at least one gemstone dimension, such as table and diameter dimensions. In a second mode, the imaging assembly obtains a second image of the top gemstone surface while a colored light pattern is reflected onto the gemstone. The image analyzer uses the second image to obtain at least one other gemstone dimension, such as crown and pavilion angles. The image analyzer uses the dimensions obtained from the first and second images to determine weight information of the gemstone. The system quickly determines gemstone weight reliably and consistently without skilled gemologists or removal from the setting.