Log measuring method and apparatus

摘要: A method and apparatus for measuring the total volume of a group elongated objects, such as load logs on transport vehicle, is described. Each end imaged photographic film with two cameras whose geometric lens characteristics, separation distance, focal lengths are known. The imaging can be done before, during or after unloading from vehicle. specially modified stereographic projector mounting all four images using digital output devices then used to transfer information, permanently stored images, computer. computer transform dimensions three dimensional stereo image produced by real world in which were originally produced. computer, turn, calculates length each log, cross sectional area wood (excluding bark) at load, etc. prepares report containing volumetric other pertinent data. equally applicable whether objects being measured exposed hidden along their length. Note natural bark. scope invention extends far beyond this specific application lumber industry, several pontential applications discussed.