This control flexibility is particularly desirable in computer animation and digital typography. A novel general anchoring mechanism is proposed, which allows arbitrary control of any point in the picture.
The use of skeletal strokes as a replacement for affine transformations in IFS coding has been explored.
It is therefore a powerful general drawing tool and extended image transformation instrument. Complicated pictures can be built up hierarchically by defining higher order strokes and recursive strokes. A deformation model of a cocJrdinate system has been proposed taking into account cases of discontinuous or extreme bending. It is neither a simple warping nor texture mapping technique, but a new method for controlling the deformation of a picture. Simplifying the making animation process has been proved to be able to reduce users' cognitive burden effectively.Ī skeletal stroke is a kind of general brush stroke for changing the shape of pictures as if by bending, shearing, twisting, while conservating the aspect ratio of selected features on tie picture. Especially for mobile devices, the easy-extended system architecture and pen-based interaction way are approved by users. In addition, for the sake of making users have better experience in creating animation at all times and places, the system design pattern and interaction way have been improved based on pen in order to be used in any running platform.
Experiments show that the time of making animation has been reduced. Besides of basic action editing, we also focus on animation synchronization which is crucial in making animation. Aimed at removing the complexity barrier and allowing nonprofessional users to create a wide variety of animations quickly, this paper proposes a sketching animation system. It is difficult for novices to understand the making animation process.
Currently, most animation making software is oriented for professional people, which are tedious and complex on operation. With the development of mobile devices, researchers pay more and more attention to application software based on it. The provided solution is intuitive to use and empowers the production of painted animation while not hampering the animation artists’ creativity. This simplifies the interaction drastically. Aside this, we present some higher-level tools that enable the animator to locally and globally control user selected parts of the drawings. The first is used to create extreme poses of the character (without the restrictive inconveniences of standard ‘point-click-and-drag’ metaphors), while the latter is employed to provide for frame-toframe coherent animation. To establish these goals we first break down the traditional drawing process into a modelling process and an animation process. We also aim at giving the animator the same freedom of expressing the artistic style he is bearing in mind as if painting in the traditional way.
We focus on eliminating the time-consuming and tedious process of drawing and managing the numerous brushes that are painted on top of each other, and on avoiding temporal aliasing artifacts such as brushes popping up in successive frames. This paper introduces new techniques and tools to draw, manipulate and animate stylised brush strokes in computer assisted animation The test results showed that the proposed method can support freehand sketching based conceptual design with no limitations on drawing sequence, directions and overtraced cases while achieving a satisfactory interpretation rate. The proposed method has been tested with our freehand sketch recognition system (FSR), which is robust and easier to use by removing some limitations embedded with most existing sketching systems which only accept non-overtraced stroke drawing. It avoids losing joint information due to segmentation of a polyline into line-segments. This method can deal with overtraced sketch strokes in both solid and dash linestyles, fit grouped polylines as a whole polyline and simply fit conic strokes without computing the direction of a stroke. The grouped strokes are then fitted with 2D geometry. The orientation and its endpoints of a classified stroke are used in the stroke grouping process. This method can support rapid grouping and fitting of overtraced polylines or conic curves based on the classified characteristics of each stroke during its preprocessing stage. This paper describes a new method for recognizing overtraced strokes to 2D geometric primitives, which are further interpreted as 2D line drawings.