小型ディジタルスチルカメラのための被写界深度制御方法

摘要

1．まえがき写真撮影では人物等の主要な被写体に焦点を合わせて背景をぼかすことにより主要な被写体を注視させる表現技法がある．しかしながら，小型の撮像素子を備えた多くのディジタルカメラでは被写界深度が深く，被写体の背景をぼかすという使用者の写真表現に対する要求を満たすことができないという問題がある．%Photography has an expression technique that lets a person see the main subject closely by shading off background to put the main focus on the main subject, such as a person. However, its depth of field is deep and cannot satisfy the demand of the user to adequately shade off the background of the subject because almost all digital cameras have an imaging element only 1/5 size of that a film camera. Therefore, in this study, a method was developed to change the depth of field of digital camera images to that of film cameras by Using firmware.