Industrial Technology Research Institute

Altek Semiconductor Corp.

Chung-Chia Kang

Chih-Wei Chen

Wen-Yan Chang

Jian-Ren Chen

Leii H Chang

Yu-Chen Huang

Nien-Chu Wu

En-Jung Farn

The present disclosure illustrates an auto-focus system using multiple lenses and method thereof. The system is characterized in using multiple lenses and combining a focus depth based approach and a contrast value based approach to improve focus speed and precision. In particular, the system can avoid the impairment caused by the repeat pattern in the focus depth based approach.

Auto-focus system using multiple lenses and method thereof

A method and a system for recognizing at least one testing image according to classes are provided, wherein each of the classes includes sample images. The method includes generating an average image of each class according to the sample images, generating a feature enhancement mask according to differences between the average images of the classes, enhancing the sample images of each class by using the feature enhancement mask to generate a plurality of enhanced sample images corresponding to each class, and training a classifier according to the enhanced sample images of each class. The method also includes enhancing the at least one testing image by using the feature enhancement mask to generate an enhanced testing image, classifying the enhanced testing image into one of the classes by using the classifier, and recognizing that the testing image belongs to the classified class. Thereby, this method can effectively recognize the testing image.

Method and system for recognizing images

A barcode structure includes at least one symbolic element row and a frame arranged at a periphery of the at least one symbolic element row. Each symbolic element row has multiple symbolic elements. Each symbolic element has different color from its adjacent symbolic elements, and the color of the frame is different from that of any symbolic element. A barcode encoding method includes: establishing multiple color combinations where a color of a frame is excluded, and each color combination comprising a main color and a sub color; performing a symbolic element row establishment procedure, which includes using a reference color as a color of a first symbolic element of a symbolic element row; deleting color combinations where the reference color is used as a main color; and selecting a color combination from remaining color combinations for coloring two symbolic elements that are sequentially connected with the first symbolic element.

Barcode structure and barcode encoding method

Growing community of inventors

Tainan, Taiwan

Chung-Chia Kang