2results about How to "Solve binding problems" patented technology

The utility model relates to a high stability temperature compensation quartz crystal oscillator, including the crystal base and the lower ceramic base of upper and lower stacking, the crystal base lower part has an upper recess, and the compensation chip is installed in this upper recess, the lower ceramic base upper part has a lower recess, and the quartz chip is installed in this lower recess, and the upper recess and the lower recess butt joint and splice to form an inner chamber, and the quartz chip includes quartz wafer, the quartz wafer is composed of fixed section wafer and turning section wafer, and one end of the fixed section wafer is provided with the bending turning section wafer. The utility model can reduce the difference between the temperature perceived by the compensation chip and the environmental temperature of the quartz wafer, provide accurate temperature compensation frequency, achieve the high stability of the frequency when temperature transient, and the quartz wafer with corner structure is designed, and under the double action of the corner structure and the partition through -hole, the stability of the quartz wafer work can be effectively improved.

The application provides a fine-grained face age estimation method based on horizontal pyramid matching, and relates to the technical field of image classification. The method is used for face images in different backgrounds. Firstly, the position of the face in the image is detected by using a face detection algorithm. Then, the face image is input into a residual network model Resnet50 to obtain an age feature map. The age feature map is horizontally divided into different pyramid scales to obtain multiple feature slices. Finally, global average pooling and global maximum pooling are respectively performed on each feature slice to obtain the overall age feature and the local age feature of the face, and the face age estimation is completed. The method solves the combination problem of the global feature and the local fine-grained feature of the face age, and realizes the extraction of the overall age feature and the local most recognizable fine-grained feature of the face.