Abstract: A method for detecting an object utilizing a monocular camera obtains an image showing an object and determining a pixel coordinate of the object in the image and determining a spatial position of the object in the image, based on the pixel coordinate of the object in the image and a preset coordinate transformation relationship or a preset depth prediction model. The image showing the object is obtained through the monocular camera, and the pixel coordinates of the object in the image are determined. According to the pixel coordinates of the object in the image and the preset coordinates transformation relationship or the preset depth prediction model, the spatial position of the object in the image is determined, providing efficient and accurate detection. An electronic device and a non-transitory storage recording the method are also disclosed.

Abstract: A hollow-type planet speed reducer includes a body. The body includes at least one driving gear driven by a power input source. The driving gear is connected to a transmission gear, and the transmission gear is connected to a first gear. Based on this, the output rotation speed can be reduced by the incorporation of the driving gear, the transmission gear and the first gear. Besides, a tubular member passes though the body and has an accommodating space to receive wires of the hollow-type planet speed reducer.

Abstract: A hollow-type planet speed reducer includes a body. The body includes at least one driving gear driven by a power input source. The driving gear is connected to a transmission gear, and the transmission gear is connected to a first gear. Based on this, the output rotation speed can be reduced by the incorporation of the driving gear, the transmission gear and the first gear. Besides, a tubular member passes though the body and has an accommodating space to receive wires of the hollow-type planet speed reducer.

Abstract: A three-dimensional cell culture system for an imaging system to observe a cell image includes at least two cell culture layers formed by a solution having a photo-polymerizable monomer, a bio-molecule, an acoustic scattering medium solution and a cell culture medium. After placing a cell into the two cell culture layers, the two cell culture layers are laminated to form a three-dimensional culture laminating layer for culturing the cell. After forming the three-dimensional culture laminating layer, at least one cell-locating layer having a polyethylene glycol diacrylate (PEGDA) solution, the acoustic scattering medium solution, a plurality of photoacoustic markers and the cell culture medium is positioned into the three-dimensional culture laminating layer so as to form the three-dimensional cell culture system. The imaging system is constructed according to a theory selected from one of optics, acoustics, optoacoutics and acousto-optics.