Abstract: A method for detecting an object includes inputting information of a moving object included in a plurality of images and generating a regression tree. In response to input of a new image, the system communicates information of a moving object included in the newly inputted image into the regression tree, and determines a size of a person included in the new image based on a resultant value of the regression tree.

Abstract: A method for detecting an object includes inputting information of a moving object included in a plurality of images and generating a regression tree. In response to input of a new image, the system communicates information of a moving object included in the newly inputted image into the regression tree, and determines a size of a person included in the new image based on a resultant value of the regression tree.

Abstract: A counting method and apparatus are provided. The method and/or apparatus includes generating a regression tree by inputting information about a moving object contained in a plurality of images, in response to a new image being input, inputting information about a moving object contained in the new input image to the regression tree, and determining the number of people contained in the new image based on a result value of the regression tree.

Abstract: Provided are a method and an apparatus for generating motion information relating to motion of an object to provide reaction of a user interface to the motion of the object. The method for generating the motion information includes: detecting depth information of the object using an image frame acquired by capturing the object through a sensor; generating the motion information by compensating a determined size of the motion of the object in the acquired image frame based on the detected depth information; and generating an event corresponding to the generated motion information.