Realistic Study Of CG Video Art

CG (computer graphics) image is an image generated by computer graphics. Ithas been used widely in science show, industrial design, medical imaging, virtualreality, film art and so on. This dissertation focuses on the CG image in film art.The dissertation takes photorealism as the entry to CG image art. The realism ofCG image is its main difference to traditional image. Although there is no object taken,CG image has to persue the visual effects as photos. Photorealism is a kind of realism.There exists a transformation from reality to photorealism. The existent relations intraditional photographs have been changed to imaginative relations, so as to reach akind of visual effects as photographs. Photorealism has three layers, visual layer,perceptual layer, technical layer and reality layer. In visual layer, it is a kind ofsynthetic realism of visual realim, physical realism and system realism. In perceptuallayer, it is a kind of present feeling, which runs through the whole process of a filmexperience. Seeing of CG image is an imaginative activity, the present feeling ensuresits running, and visual experiences accumulate and sublime to reach a kind ofaesthetic feeling by imaginative activity. But the main limitation of CG image is that itcan’t reach the vitality as traditional photograph in human simulation. From thetechnical layer, this is impassable gulf because of the specificity of computer tool.Reality is the ultimate expression of photorealism. It makes something of virtualimages into the real world, and has the ability of replacement through osmosis.The dissertation is organized as the thread of “development and status of CGimage-technology and art characteristics–photorealism–realism and vitality–fromrealism to reality”. The first chapter is an overview of the development, positioning,technology and art characteristics, the second and third chapters are the analysis ofreality and feeling in CG image respectively, the forth and fifth chapers discusses thelimitations of realism from technical point of view, and the last chapter is asublimation of the whole dissertation. Finally the relation and future development oftechnology and aesthetics are investigated.Nowadays, much research of CG image art still exists in the scope of traditionimage theory, and most researchers adopt theories of realism, illusion and emotion.There exists the separation between technology and art researches, and also theseparation of cognition and aesthetics. The dissertation trys to break through thesetraditional theoretical frameworks, and develops a unique investigation and researchof CG iamge to provide a positive impact to CG image and new media.